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03-19-22, 02:10 PM | #5251 |
Navy Seal
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USS Cisco SS-290 Sea Trial 1 June 3-5 1943.
U.S.S. CISCO SS-290 Operation Report of First Sea Trial
------------------------------------------------------------------------------------------------------------- PROLOGUE U.S.S CISCO SS-290, is the fifth submarine of the BALAO class constructed and was placed into commission on MAY 10, 1943, Commander James W. Coe, USN, commanding. CISCO is named for a whitefish of the Great Lakes, the only US Naval Vessel named so thus far. In the weeks following commissioning, CISCO underwent final fitting out prior to trials, including installation of a new SJ Surface search radar, twin 20mm guns forward and aft on the bridge, as well as on the aft deck. Officers CDR J.W. Coe, USN. CO CDR A.F. Weinel, USN. XO LCDR John D. Miller, USN. LT W.H. Louney, USN. LT H.B. Berry, USN. LT jg G.P. Hoover, USN. ENS C.I. Petersen, USN. CPO's Toebbe, H.E., USN. CTM (Chief of the Boat) Gurganus, A.A., USN. CTM Sunday, L.W., USN CBM Anderson, D.F., USN CMoMM Dragich, J., USN CMoMM Sheehan, C.R., USNR. CMoMM Total complement: Seven officers, Sixty-nine crew. Twenty Four MK 14 torpedoes loaded 1-2 June. Ready for sea June 2. NARRATIVE JUNE 3 _______ 0900 Underway from Mare Island, CA for training area to conduct diving drills and plot/intercept/navigation exercises. 0910 Fell in line astern of escort, ANDERSON DD 411. (Ship Contact No.1) 0940 Passed below Golden Gate Bridge. 1000 Spotted Australian flagged AK bearig 045 11000 yds. (Ship Contact No.2) 1006 Spotted PBY (Aircraft Contact No.1) 1030 Escort detached. Signaled X WELL DONE X DD replied X GOOD LUCK X 1032 Increased speed to standard (15.5 kts) 1137 (Ship Contact No.3) Spotted AK bearing 005 10500 yds. 1430 Arrived in training area. Began preparations. 1440 DIVE NO.1 Surface Speed: 15 kts Course 155 Dive Time: 45 seconds Depth: 64 ft. 1505 Surfaced. 1535 DIVE NO.2 Surface Speed: 17 kts Dive Time: 44 seconds Depth: 100 ft 1601 Surfaced 1615 DIVE NO.3 Surface Speed: 20.5 kts Dive Time: 40 seconds Depth: 150 ft Remark: Dive was a high speed 'Crash Dive' from surface to 150 feet. Time from surface ot submergence was 40 seconds. 1618 Leveled off at 150 ft. 1631 Surfaced. 1830 DIVE NO.4 Surface Speed: 20.5 kts Dive Time: 39 seconds Depth: 150 ft Remark: 'Crash Dive' 1900 Surfaced. Diving drills concluded for the day. Test and Deep Dive scheduled for following morning. JUNE 4 ______ 0500 At dawn overcast and light fog arrived with 14 knt winds direction 159. Seas had a light chop. Decided to watch weather but 0700 dive remained scheduled. 0650 Crew called to GENERAL QUARTERS. Rigged for deep submergence. 0700 DIVE NO. 5 Surface Speed: 11 kts Dive Time: 51 seconds Depth: 412 ft Remark: First Dive to Test Depth- 412 ft. Dive was slow and steady, checking all functions during descent. Initial dive angle 25 degrees down, steadied to 15 degrees 0705 Thermal layer detected at 200 ft. 38-14N 123-28W 0716 Leveled off at Test Depth-412 feet. All was normal. 0816 After one hour at test depth, conducting maneuvering and systems check, began ascent to periscope depth. Twenty degree up angle. 0821 Periscope depth. 0825 Surfaced 0900 DIVE NO. 6 Surface Speed: 20.5 kts Dive Time: 44 seconds Depth: Test Depth-412 ft Remark: 'Fast' dive to test depth from surface, made at flank seed and 25 degree down angle. 0902 Passed thermal layer at 197 ft. 38-15N 123-29W 0904 Leveled off at test depth of 412 ft. Conducted maneuvers and systems checks. 1040 Ordered periscope depth. 1046 Periscope depth 1055 Surfaced 1108 DIVE NO. 7 Surface Speed: 19 kts Dive Time: 40 seconds Depth: 412 ft Remark: 'Crash Dive' from surface to Test Depth. 1112 Leveled off at test depth-412 ft. 1130 Emergency Surface! (DRILL) Blew Ballast at 412 ft depth. Maximum up angle, all ahead flank. 1132 Surfaced. Twenty two percent of compressed air expended. 1147 DIVE NO. 8 Trim dive to 90 ft. 1200 Periscope depth. Raised SD mast to check function. Functioned properly. 1210 Surfaced. 1212 Secured GQ. Commenced battery recharge, compressed air replemishment and noon meal. Deep submergence dives scheduled for afternoon. 1300 Overcast and fog cleared. Winds 11 knots direction 156. Light chop to seas. 1420 Called GENERAL QUARTERS. Rigged for deep submergence. 1430 DIVE NO. 9 Surface Speed: 15 kts Dive Time: seconds Depth: 512 ft. Remark: Deep Dive to 512 ft, 100 ft beyond test depth. 1435 Passed Test Depth 412 ft. 1437 Passed 500 ft. 1438 Leveled off at 512 ft. No leaks or other issues. Began manevuring and testing of equipment. 1520 JP (sound) contact bearing 341 closing medium speed, estimated range 10000 yds. Ordered periscope depth for impromptu fire control drill. TORPEDO FIRE CONTROL DRILL NO.1 1530 Periscope depth. Spotted smoke and outline of mid sized AK bearing 010 at six miles. on course 340. Ordered CISCO to intercept course 070 at flank speed and to depth 80 ft. All compartments reported manned and ready for torpedo firing. 1550 Periscope depth. Target on course 070 closing. 1602 Employed WCA Sonar for one ping. Target range 1450 yds. 1605: Fired simulated torpedoes from range of 1000 yds. 00 1605: Torpedo impact! 35 1605: Torpedo impact! 40 1605: Torpedo impact! 45 Three simulated impactes. A assured sinking if encounterd a similar vessel. 1615 Surfaced to topp off battery charge prior to next deep dive. 1714 DIVE NO. 10 Surface Speed: 20.5 kts Dive Time: 45 seconds Depth: 512 ft. Remark: Fast Deep Dive to 520 ft. 108 ft beyond test depth. 1730 Confident in CISCO's construction, ordered slow test descent to 550 ft. 1800 CISCO at depth of 600 ft. 1805 Speed of 4.5 knts was required to maintain depth control at 600 ft. 1848 After nearly a hour of maneuvering at 600 ft, began ascent to periscope depth. 1854 Periscope depth. 1900 Surfaced. 1905 Secured GQ. 1918: Simulated SD contact range 12000 yds closing fast! (Dive Drill) 10 1918: DIVE NO.11 14 Surface Speed: 20.5 kts Dive Time: 40 seconds Depth: 512 ft. Remark: 'Crash Dive' to 150 ft prompted by simulated aircraft closing on SD Radar at dusk. 1945 Surfaced. Night orders to patrol area under simulated war patrol conditions.Any contacts were to be closed, tracked, and identified. Simulated fire control attack drills possible. Remainder of test dives scheduled for dawn following morning. JUNE 5 _______ 0856 DIVE NO.12 Surface Speed: 19 kts Dive Time: 44 seconds Depth: 412 ft, 512 ft. Remark: Watch section qualification dive No.1 in heavy seas. 1025 Surfaced 1045 0856 DIVE NO.13 Surface Speed: 19 kts Dive Time: 44 seconds Depth: 412 ft, 512 ft. Remark: Watch section qualification dive No.2 in heavy seas. 1145 Surfaced 1200 DIVE NO.14 Surface Speed: 19 kts Dive Time: 42 seconds Depth: 412 ft, 512 ft. Remark: Watch section qualification dive No.3 in heavy seas. 1245 Surfaced. 1250 All watch sections and Battle Stations qualified for dives. Sea Trial completed. Set course for Mare Island per orders. 1701 Arrived Mare Island Naval Shipyard, docked. |
04-12-22, 07:16 PM | #5252 |
Mate
Join Date: Feb 2018
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USS Silversides patrol report 6 :
https://drive.google.com/file/d/1gWt...ew?usp=sharing 9 ships sent to Davy Jones for 22,600 tons claimed. (no pics this time around) |
05-05-22, 01:15 AM | #5253 | |
Navy Seal
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Quote:
Enjoyed the report as always |
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05-05-22, 03:22 PM | #5254 |
Watch
Join Date: Oct 2021
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Great reports to all
Bubblehead1980, waiting for your next one. |
05-05-22, 11:09 PM | #5255 |
Navy Seal
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05-08-22, 04:44 PM | #5256 |
Navy Seal
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USS BARB SS-220 First War Patrol 19 October 1942-24 November 1942
USS BARB SS-220
WAR PATROL REPORT WAR PATROL NUMBER ONE 19 OCTOBER-24 NOVEMBER 1942 PROLOGUE Keel for SS-220 laid on 7 June 1941 Electric Boat Company, Groton, CT. Launched on 2 April 1942, sponsored by Mrs. Charles A. Dunn, wife of Rear Admiral Dunn. Commissioned 8 July 1942 with Lieutenant Commander John R. Waterman in command. Sea trials and workups commenced through Summer of 1942 with assignment to Submarine Squadron FIFTY in October 1942. Assigned to conduct operations in support of Operation TORCH and proceed to Rosneath, Scotland with rest of SUBRON 50. Twenty four MK 14 torpedoes loaded along with provisions 17-18 October. Ready for sea 19 October 1942. (A) NARRATIVE Daily routine consisted of a trim dive at dawn and dusk. Numerous schools for Qualification and Advancement were also held as part of daily routine. October 19 __________ 0900 Departed Submarine Base New London, Connecticut in company with escort DD BAGLEY for Special Mission in support of TORCH. 0930 Reached New London Ledge Lighthouse, BAGLEY detached. Proceeded via designated lane in Block Island Sound. 1015 Passed Latimer Reef Lighthouse. 1229 Sighted PBY. Exchanged Recognition signals. (Aircraft Contact No.1) 1535 Dive 1557 Surface October 20- November 4 ___________ En route to Safi, French Morocco to conduct special mission. Passage uneventful. 1900 Arrived off Safi, French Morocco, began reconnoiter of area. Sent reported to COMSUBLANT. November 5 ___________ 0105 Submerged 10 miles West of Safi. Reconnoitered the area throughout the day. November 6 ___________ Patrol submerged along coast South of Safi. 0453 Spotted aircraft bearing 090. Single engine, possible JU-87 Stuka dive bomber. November 7 ___________ Submerged at dawn to reconnoiter the Point de la Tour area for landing operation after dark. 1400 Began preparations for execution of special mission, insertion of Scouts under LT Duckworth, US Army off Point de la Tour. 1800 Evening Fox Traffic confirmed TORCH would commence 8 November. 2320 Surfaced 3900 yards NNE of Point de la Tour. 2330 Deployed Army Scouts via rubber boat off Point de la Tour. Proceeded to landing beach to assumed guide position. November 8 ___________ Submerged at dawn off landing beach. Observed approach of landing force at 0400. Bombardment and exchange of fire with shore batteries began at 0500. 0647 Observed first wave of landing craft approaching beach bearing 150. 0700 Troops landed. 0730 Observed air strikes by F4F and SBD's in Safi area. 1001 Enemy aircraft attacked landing force. Observed heavy AA fire in area. 1022 One friendly AK observed on fire from bomb hit by dive bomber. 1800 Surfaced, proceeded to patrol station West of landing area. November 9 ___________ 0400 Submerged for patrol at dawn. 1408 Surfaced at dusk into heavy seas. Winds 20 knots direction 275. November 10 ___________ Patrolled North of landing area. Uneventful. November 11 ____________ TORPEDO ATTACK NO.1 ____________________ 2231 SJ contact bearing 030 18200 yards. Turned to intercept. 2313 Made visual contact bearing 020 with surfaced U Boat(identified as Type 9) 2314 GENERAL QUARTERS-TORPEDO. Set course 160 to match contact and pull ahead for attack. 2325 Submerged for attack. 2327 Leveled off at 100 ft for approach. 2334 Periscope depth. Target course 160, speed 12 knots. 2335 Tubes 1,2,3,4,5,6 made ready to fire. 2337 Fired Tubes 1,2,3. at range 1800 yds. 2338: Torpedo exploded prematurely 25 2338: Torpedo exploded prematurely 30 2338: U Boat alerted, began evasive maneuvers at high speed. Appeared to turn towards BARB. Ordered 150 ft, rigged for silent running and collision. 32 2339 Sound could hear torpedoes closing BARB, surely fired from U Boat. 2340 BARB torpedo missed, reached end of run. November 12 ____________ 0300 All cleared. Secured Silent Running and GQ. Remained submerged for the day. 0817 Periscope observation. Heavy fog and rain in area. Seas light chop. 0830 Surfaced. November 13 ____________ Rains persisted in area. 2102 Received message from COMSUBLANT regarding MULLET in need of assistance with engineering casualty. Set course for Canary Islands. November 14 ____________ 2341 Rendezvoused with MULLET. Provided spare parts and CMoMM to assist in repairs. Remained in area to provide cover and further assistance. November 15 ____________ Patrolled area near MULLET through the day. November 16 ____________ MULLET repairs completed. CMoMM R.J. Hadler, USN, remained aboard MULLET to assist. BARB , per COMSUBLANT, set course for Rosneath, Scotland. November 17 ____________ 0904 Lookouts spotted a USN TBF Avenger flying low on water bearing 094. SD did not detect due to low altitude. With plane appearing to take attack posture, ordered a dive. 0905: With BARB passing 85 feet, a series of explosions off port side shook the boat with minor damage. See MAJOR DAMAGE AND DEFECTS. Remained at 200 feet for rest of the day. 1900 Surfaced, set course for Rosneath-BASE II. November 18-22 _______________ Transited 15 miles off Portguese and Spanish coasts. Daily routine en route BASE II. Uneventful. November 23 ____________ 0430 Passed Strumble Head and cleared minefields. 2220 Passed Ailsa Craig Lighthouse November 24 ____________ 0028 Arrived entrance to Firth of Clyde, awaited escort off Little Cumbrae Lighthouse. 0500 Escort did not arrive by dawn for rendezvous. Proceeded independently to BASE II. 1400 Arrived BASE II, Rosneath, Scotland. Terminated war patrol. (B) CONTACTS -------------- SHIPS _____ NO.1 DATE 11/11/1942 TIME 2231 LAT 32-41N LOG 9-47W BRG 030 RNG 18200 yds CRS 160 SPD 12 kts TYPE U Boat-Type 9 HOW SJ-Visual REMARK Torpedo Attack No.1 NO.2 DATE 11/4/1942 TIME 2320 LAT 30-27N LOG 13-39W BRG 003 RNG 8000 yds CRS 085 SPD 0 KTS TYPE USS MULLET SS HOW SJ-Visual REMARK Rendezvous to assist MULLET. Transferred spare parts and CMoMM. AIRCRAFT ________ NO.1 DATE 10/19/1942 TIME 1229 LAT 41-16N LOG 71-38W BRG 140 RNG 8000 yds CRS 085 ALT 1000 ft SPD 110 kts TYPE PBY HOW Visual REMARK NO.2 DATE 11/06/1942 TIME 0453 LAT 28-27N LOG 14-39W BRG 090 RNG 4000 yds CRS 010 ALT 1000 ft SPD 155 kts TYPE JU 87 Stuka-Dive Bomber HOW Visual-No.1 Periscope REMARK Appeared to carry French markings. Coastal air patrol? NO.3 DATE 11/17/1942 TIME 0904 LAT 35-30N LOG 12-50W BRG 094 RNG 6000 yds CRS 270 ALT 600 ft SPD 200 kts TYPE TBF AVENGER (USN) HOW Visual only REMARK Bombed-Friendly Fire. (C) ATTACKS USS BARB SS 220 Torpedo Attack ONE War Patrol ONE Date 11 November 1942 Time 2337 Lat.32-38N Long.9-51W Description While on barrier patrol, made lone SJ contact at 18200 yards, approximately 40 nautical miles West of Safi landing area. Soon after closing, established visual contact on surfaced Type 9 U Boat and began shadowing for approach and attack. Fired three MK 14 torpedoes from tubes 1,2,3 at 1800 yards. Two torpedoes prematurely exploded, one missed. Type Attack Submerged-Night-Periscope Ships Sunk None Ships Damaged None Ships Probably Sunk None Torpedo Attack No.1 Target Data (at firing) Name U-Boat Type 9 Course 160 Speed 12 kts Range 1800 yds AOB 90 P Bearing 007 True Bearing 249 Remark Torpedo Attack No.1 Torpedo Fire Control Data Tube # 1 Type MK 14 Serial No. 31990 Exploder MK 6 Serial No. 2990 Gyro 351 P Track 107 P Course 234 Method Single bearing Interval 4 seconds POA MOT Spread 0 Power High Depth 6 ft Set Actuation Magnetic-Contact Actual Actuation -- Hit No Erratic No Remark Premature Detonation Tube # 2 Type MK 14 Serial No. 31991 Exploder MK 6 Serial No. 2991 Gyro 351 P Track 107 P Course 234 Method Single bearing Interval 4 seconds POA MOT Spread 1 degree port Power High Depth 6 ft Set Actuation Magnetic-Contact Actual Actuation -- Hit No Erratic No Remark Premature Detonation Tube # 3 Type MK 14 Serial No. 31993 Exploder MK 6 Serial No. 2993 Gyro 351 P Track 107 P Course 234 Method Single bearing Interval 4 seconds POA MOT Spread 1 degree starboard Power High Depth 6 ft Set Actuation Magnetic-Contact Actual Actuation -- Hit No Erratic No Remark Torpedo missed, reached end of run. Own Ship Data (at firing) Depth 60 ft Course 241 Speed 3 kts Angle 2-down Seas Heavy Depth under keel 150 fathoms plus (D) WEATHER Weather en route New London to area of operations varied from calm, mild days and cool nights, to raging seas, winds, and bitterly cold nights. Weather in operation area was mild to warm, with choppy seas for most of duration. A period of about 72 hours in mid November produced ongoing storms with blinding winds, rains, fog, and heavy seas. Weather en route BASE II from operating area was almost yachting weather along the Portguese and Spanish coasts. Shortly after passing Cape Finisterre as BARB entered out reaches of the Bay of Biscay temperatures dropped with choppy seas and occasional rain squalls for duration of transit. (E) NAVIGATIONAL AIDES Lighthouse at Pointe de la Tour near Safi provided a aide to navigation in operating area. Lighthouse at Cape Finisterre aided in navigation along the Spanish coast. Lighthouses in the Firth of Clyde provided navigational aide en route to Rosneath. (F) SOUND CONDITIONS AND SOUND GEAR Sound conditions throughout patrol ranged from poor to okay. During the only torpedo attack of the patrol, sound had difficulty following the surfaced U Boat target in the heavy seas. Sound conditions were enemy were unknown but suspected likely as enemy U Boat did not appear aware of BARB's presence until premature detonation of torpedoes. (G) RADIO Radio function for this patrol was normal. (H) RADAR SJ SJ radar performance was excellent overall. Targets were typically detected at around 17000 yards. SD SD radar performance was sufficient overall. Typical detection range was 18000 yards. However, a low flying TBF was not detected and in a case of mistaken identity, BARB was bombed. (J) MINES No mines were encountered on this patrol. (K) ANTI-SUBMARINE COUNTERMEASURES AND TACTICS No enemy ASW vessels were encountered. Just one enemy air patrol was encountered in operating area. (L) MAJOR DAMAGE AND DEFECTS BARB suffered minor damage when attacked by a USN TBF. All damage repaired at sea. 1. Rudder transmission 2. No.2 Periscope 3. Shattered glass fixtures-All compartments 4. Light bulbs-All compartments 5. Minor gland and piping leaks in Conning tower and control room. 6. Minor leaks in high pressure air lines. (M) THERMAL LAYERS No thermal layers were encountered on this patrol. (N) SPECIAL OPERATIONS BARB arrived in area a few days prior to scheduled November 8 landings and conducted reconnoiter via periscope during daylight hours as close as 3000 yards off the beach. Reports were sent to COMSUBLANT regarding tides, beach status, weather, and other vital information on a nightly basis. BARB deployed six Army Scouts under LT DUCKWORTH via rubber boat approximately 4,000 yards NNE of Point de la Tour near Safi at 2330 7 November. Operation went smoothly with the enemy unalerted. Following this, BARB per orders, proceeded to position at the Safi landing beaches where provided guidance via infrared signals. At dawn BARB submerged and observed the bombardment, exchange of gunfire with shore batteries, carrier air strikes, and finally landing craft hitting the beaches. Per orders BARB cleared the area to provide barrier patrol North-West of the landing area. BARB was ordered to rendezvous with submarine U.S.S. Mullet off the Canary Islands. MULLET suffered critical breakdowns in all four HOR engines during her patrol. Upon rendezvous on 14 November, via rubber boat the required parts and our best Chief Motor Machinist's Mate were transferred to provide assistance. MULLET was able to get underway and per orders BARB proceeded independently, with her CMoMM stll aboard MULLET. Naturally, our Chief rejoined the crew upon MULLET reaching port. (O) PERSONNEL Officers 7 Qualified for Command 3 Chief Petty Officers 7 Men 56 Qualified in Submarines Officers 5 CPO/Crew 40 Qualified during patrol Officer 1 Crew 9 Advanced in Rating 6 (P) Health and Habitability Overall morale and health of the crew remained high throughout the patrol. Meals prepared were excellent. Conditions in the boat were overall satisfactory. (Q) MILES STEAMED-FUEL CONSUMED Miles Gallons New London to Area 4096 39445 In Area 5500 61250 Area to Rosneath 1850 23200 (R) DURATION Days New London to Area 17 In Area 8 Area to Rosneath 11 (S) FACTORS IN ENDURANCE Torpedoes 21 Fuel 34250 gallons Provisions 42 days Crew Indefinite Factor in termination of patrol: Orders per COMSUBRON 50 (T) REMARKS A successful patrol in all assignments were completed to satisfaction. Great disappointment is felt at the failure to sink the enemy U-Boat encountered on 11 November, due to torpedoes prematurely detonating and alerting target. Enemy ASW activity was surprisingly light throughout the patrol. The friendly fire incident of 17 November was quite disconcerting and not the only one to befall a boat of SUBRON 50 during operations in support of TORCH. Hopefully, such incidents are avoided in the future J.R. Waterman |
05-08-22, 07:51 PM | #5257 |
Navy Seal
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USS BARB SS-220 WAR PATROL TWO 23 December 1942- 3 February 1943.
TMO Update BH V2.0
100 difficulty, cams and contacts off. *This report will different in format as for some reason my notes and data for patrol were not properly saved and are incomplete, so will provide a summary of activities* PROLOGUE Returned from First War Patrol, arrived BASE II Rosneath, Scotland and moored with tender USS BEAVER on 24 November 1942. Commenced standard refit. Twin 20 MM AA gun replaced single 20 MM. Three replacement torpedoes loaded along with provisions. Ready for sea 23 December 1942. NARRATIVE Departed BASE II, Rosneath Scotland for assigned patrol area in approaches West of the Bay of Biscay. Proceeded down the West Coast of Ireland to assigned area at 15.5 knots by day and 10 knots during night time hours. Submerged to avoid aircraft on SD multiple times. While likely friendly, this was done to avoid friendly fire incidents. Arrived in area on 28 December 1942. Conduct submerged patrol initially but heavy seas necessitated surfaced patrolling after 31 December. Over next 20 days no contacts were made, aside from one large flying boat believed to be German Luftwaffe. BARB was not detected. Finally, at 1053 on 21 January, a SJ contact bearing 049 17600 yards was made. BARB headed for contact at flank speed to intercept.Vessel was soon tentatively identified as a surfaced U Boat, judging by course believed to be inbound to French coastal ports. GENERAL QUARTERS-TORPEDO was called and BARB submerged for attack at 1141. Upon submerging, BARB approached rigged for silent running at 100 feet, just below a thermal layer at 95 feet. At 1213, BARB came to periscope depth and could make out the outline of a surfaced submarine on the horizon. Plot soon showed submarine on course 030 at 16 knots. BARB went back to 100 feet and continued approach. BARB rose to periscope depth for attack at 1235 with tubes ready to fire, torpedoes set to depth of 6 feet. Upon raising of scope, boat was clearly identified as a Gato Class Fleet Submarine, believed to the SHAD en route home. To avoid confusion, BARB went to 150 feet and turned away , secured from GQ and remained submerged rest of the day, surfacing at 1900. No message regarding a submarine transiting our area was received. BARB continued patrol in area, as approached thirty days and thus expiration of our time on station. Storms settled in during this time, making for a rough few days. At 2118 on 24 January, BARB received a ULTRA ordering a search within 100 nautical miles of 44-50N 24-30W for damaged U-Boat and another en route to provided assistance. Set course for area West of current position. Course 258 at 18 knts. En route to the search area, weather calmed but a strong chop remained in the seas. Upon arriving began search of area. Arrived in search area just after midnight on 27 January and began search. Submerged during daylight hours and searched, considering U Boat most likely would do this and did not want to expose BARB to submerged attack with her on surface. Surfaced at dark and continued search. At 1805 SJ Contact was made, bearing 030 13250 yards. BARB submerged to close contact and went to GENERAL QUARTERS-TORPEDO. After a long slow approach with no sound contact, came to periscope depth to find two large submarines, tentatively identified as U Boats Type 9, surfaced and alongside one another., with the one to starboard and farther away from BARB just slightly ahead of the closest one. All bow tubes were made ready to fire and set to 6 feet depth. BARB closed to 1000 yards and at 2131 fired six MK 14 torpedoes. Three torpedoes hit the closest U Boat, which quickly disappeared beneath the waves. Torpedo number four prematurely detonated just a few yards from second U Boat. This U-Boat was now underway, but given its proximity to three torpedo explosions appeared damaged. However, it was able to speed up enough to avoid the second and third torpedoes, which passed astern. Second torpedo reaching end of its run sometime later and the third detonating itself about 10 seconds after missing the target. BARB was already swinging around and plotting to fire a stern shot at the now underway U Boat. Four torpedoes were soon fired, but just after firing U Boat disappeared, apparently submerged, all torpedoes missed. BARB went to 150 feet, rigged for silent running, and collision. Sound never made contact with the U Boat again. BARB secured from GQ and remained submerged in area throughout the day, surfacing at 1900 hours. Attempting to locate U boat again and wreckage but unable. Per orders, turned for home after midnight. Passage home from 29 January- 3 February was uneventful. At 1001 on 3 February moored alongside USS BEAVER at BASE II, Rosneath, Scotland and terminated war patrol. Patrol Data Duration of patrol: 40 days Torpedo Attacks 1 Torpedoes Fired 10 Torpedo Hits 3. Ships Sunk 1 Type 9 U-Boat 1051 tons Ships Damaged 1Type 9 U-Boat 1051 tons * Surfaced AI U boats/submarines can not actually submerge in SH 4. However, many are set to randomly reach a last waypoint and "delete" , which view through periscope can appear to be a dive as they gradually fade away from visual/sonar/radar. Also possible this sub sunk due to damage sustained with its close proximity to 3 torpedo hits on other sub. |
05-09-22, 08:34 PM | #5258 |
Navy Seal
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USS BARB SS-220 THIRD WAR PATROL 20 February - 1943
WAR PATROL REPORT
USS BARB SS-220 THIRD WAR PATROL 20 February- 1943 PROLOGUE -------------- Arrived BASE II, Rosneath, Scotland from Second War Patrol on 3 February 1943. Commenced refit period with modifications to conning tower Fairweather by crews from USS BEAVER. Fairweather was cut down with a forward platform and twin 20mm Oerlikon AA gun added forward, with a twin 20 mm gun added to deck aft. Aft conning tower and periscope shears further altered to reduce silhouette. All torpedoes removed for check by BEAVER torpedo shop, with twenty four MK 14 torpedoes loaded aboard along with provisions 14-19 February. Ready for sea 20 February 1943. NARRATIVE ---------- February 20 ____________ 1030 Departed BASE II, Rosneath, Scotland for assigned patrol area Northeast of Iceland. February 21 ____________ 0050 Spotted DD. Exchanged recognition signals. February 22 ____________ En route patrol area. Normal routine. Uneventful. February 23 ____________ 0000 Entered patrol area NNE of Iceland. Patrol in area uneventful. February 24 ____________ Patrol in area. Uneventful. February 25 ____________ 0154 SD contact 16200 yds, closing. 0156 Range decreased to 10000 yards. Aware of the lack of bombing restrictions in area, ordered a dive in case aircraft planned to attack. 0157 BARB at 100 ft, series of explosions astern, not close. 0200 Large series of explosions astern to port, not close. Ordered 300 ft. 0430 Surfaced. February 26 ____________ Uneventful. Patrol in area. February 28 ____________ 2240 SD contact 16500 yds steadied at 10000 yds. 2241 Range began to decrease rapidly. Dive. 2243 BARB at 165 ft. Series of large explosions, not close. 2244 More explosions, not close. March 1 ________ 0122 Surfaced. March 2-8 ___________ Patrol in area, uneventful. March 9 ________ 0600 Submerged just after dawn for patrol. 0604 after leveling off at 100 feet, sound detected a U Boat bearing 050 estimated range 3000 yards or less, closing. Appears a enemy submerged U Boat was conducting a approach to fire when BARB made her routine dive! Went to 150 ft rigged for silent running. 0721 Lost sound contact. Remained submerged for rest of the day. 1900 Surfaced. 2241 SD contact steady at 12000 yards, suddenly began closing. At 10000 yards, BARB submerged. Several explosions heard. Another Allied aircraft attacked BARB, as Axis aircraft are not present in area. March 10-19 ___________ Patrol in area. Uneventful aside from storms on 12-15 March. Heavy seas persisted after. March 20 _________ 1303 Spotted GLEAVES Class DD bearing 050 9000 yards. SJ did not detect this vessel. Attempted to exchange recognition signals and evade, but DD charged in, fired salvo from forward turrets, apparently believing BARB was a U Boat. BARB submerged, rigged for depth charge and silent running. A strong thermal layer at 80 feet was detected. The DD made pinged and made multiple DC runs but none were too close, the Icelandic waters appear to help conceal BARB. 1401 A second warship contact arrived on scene and began pinging. More DC, but none close. BARB slipped away and surfaced after dark at 1900 hours. A radio report was sent to COMSUBLANT upon surfacing. March 21-25 ___________ Patrol in area. Uneventful. SJ not operating properly. March 26 _________ 0000 Time on station expired, departed area proceeded to BASE II-Rosneath. 0300 Heavy winds and seas, with patchy fog. March 27-28 __________ En route Rosneath. Spotted, exchanged recognition signals with RAF patrol pane at 1421 hours on 27 March. March 29 __________ 1004 Arrived BASE II-Rosneath, Scotland. Terminated war patrol. WEATHER ------------ Weather during transit and on station was typical for the area this time of area. Most days featured light to moderate fog and clouds, with seas always at a solid chop to heavy swells, with winds ranging from 10 knots to in excess of 30 knots. Several days of storms hindered operations in area at times. Multiple large and moderate sized icebergs were observed in the area. NAVIGATIONAL AIDES -------------------------- Lighthouse on Jan Mayen Island provided navigational aide in assigned area. ATTACK DATA ----------------- No attacks were conducted on this patrol. SOUND CONDITIONS AND SOUND GEAR ---------------------------------------------- Sound conditions were generally poor in assigned area due to heavy seas and temperatures. Sound gear functioned properly but suffered in the poor sound environment. RADAR --------- SD SD Radar performed well, with typical detection of aircraft at 14000 yards. SJ SJ function was adequate through first part of patrol. Around 20 March, SJ began to fail to detect surface targets. (had a accidental shell out to windows, so I reloaded a previous save after exiting game. Upon reload, SJ did not function rest of patrol. Possibly damaged?) RADIO -------- Radio function was normal during this patrol. MINES --------- No mines were encountered on this patrol. ANTI-SUBMARINE COUNTERMEASURES AND TACTICS ------------------------------------------------------------- No enemy ASW measures were encountered on this patrol. One submerged enemy U Boat was located via sound, conducting a approach on BARB. Contact was made just after diving for patrol at dawn. Submarine was estimated 3000 yards and closing, likely nearing firing point. However, this is believed to be a chance encounter with a U-Boat operating or transiting through the area. Several Allied aircraft and two destroyers attacked BARB in friendly fire incidents. Allied ASV radar appeared to detect BARB long before they showed up on BARB's SD radar scope. This required BARB to submerged several times to avoid attack. Explosions indicating aerial depth charges and bombs were dropped. All of these friendly fire incidents involving aircraft took place at night. Two Gleaves Class Destroyers, identities unknown depth charged BARB. BARB on the surface, encountered a DD South of Jan Mayen Island, NNE of Iceland. BARB's SJ radar did not detect the contact and thus contact likely already had BARB, who was on surface riding out a storm which had just cleared at time of contact, on her surface search radar. Heavy sea state, thermal layers, and ocean temperatures helped to provide inadequate sound conditions for the hunters, thankfully. A second destroyer soon arrived on scene, indicating a ASW patrol. BARB evaded the two DD's by rigging for silent running and depth charged, with evasion at test depth of 300 ft. MAJOR DAMAGE AND DEFECTS No damage occurred on this patrol. Defects SJ Radar Unit stopped functioning properly from 20 March to end of patrol. Repairs conducted by USS BEAVER at BASE II, Rosneath. THERMAL LAYERS Thermal layers in area were quite shallowed as were recorded at 65-80 feet throughout area. PERSONNEL Crew performance was superb in spite of a challenging 30 plus days in area with heavy seas, bitterly cold temperatures, numerous "friendly fire" attacks, being stalked by a enemy U Boat and normal privations of patrol. Eight men advanced in rating during this patrol, with one officer and six more being designated as "Qualified in Submarines". HEALTH AND HABITABILITY Health of crew and habitability of boat were overall satisfactory. Rough seas did restrict meal preparations on some days and other challenges. MILES STEAD-FUEL USED Miles Gallons Rosneath to Area 894 19550 In Area 9550 85550 Area to Rosneath 955 20224 DURATION Days Rosneath to Area 3 In Area 36 Rosneath 3 FACTORS IN ENDURANCE Torpedoes 24 Fuel 24500 gallons Provisions 39 days Crew Indefinite Reason for termination of patrol: Time on station expired-fuel status low. REMARKS A challenging patrol given the weather conditions and difficulty of searching for enemy U-Boats, which was primary assignment in this area. Allied ASW attacks, particularly by air made operations a challenge. Given experiences of this patrol, it is felt better that a friendly submarine not be assigned to these waters in the future. J.R. Waterman |
05-11-22, 10:51 AM | #5259 |
Navy Dude
Join Date: Dec 2014
Location: St. Petersburg, FL
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Those Final Moments - A diorama
Came across this hobbyist making a diorama that I thought some of Y'all might enjoy
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If I can't be a good example, I'll be a glaring warning! AMD Ryzen 7 2700X Eight-Core Processor, 3700 Mhz, 8 Core(s), 16 Logical Processor(s) Windows 10 Home Installed Physical Memory (RAM) 16.0 GB NVidia RTX2070 16 Gig |
05-11-22, 05:33 PM | #5260 |
Navy Seal
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05-17-22, 10:36 AM | #5261 |
Weps
Join Date: Apr 2007
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This is a scene you will never see IRL
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05-27-22, 05:03 AM | #5262 |
Navy Seal
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USS CISCO SS-290 First War Patrol 12 September-18 October 1943
TMO Update BH V2.0
100 difficulty. Contacts and cams off. War Patrol Report USS Cisco SS-290 War Patrol ONE 12 September-18 October 1943 PROLOGUE ________ Arrived Brisbane, Australia 1 September 1943 from New London, CT via Balboa, Panama Canal Zone. After liberty for crew and voyage repairs, began daily training and work ups for patrol. Loaded 24 MK 14-1A torpedoes and provisions. Ready for sea 13 September 1943. NARRATIVE __________ Daily routine consisted of a trim dive at dawn, typically between 0630-0700 and a second trim dive at dusk. Star sights were taken at appropriate times each day, navigators discretion. SJ radar was secured during daylight with sweeps made ever half hour. At night SJ sweeps were conducted every 10 minutes due to obvious reduced visibility. With seven officers aboard, there were two officers on each watch, with the OOD on the bridge when surfaced, and in the conning tower when submerged. AOOD stood watch in conning tower to monitor radar and sound data, dropping to control room when a dive was called, unless at General Quarters. Continuous sound sweeps were made when submerged. When surfaced, occasionally would stop engines to listen for contacts, taking advantage of the hull mounted soundheads. When surfaced, SJ radar sweeps were made every half hour during daylight hours and every fifteen minutes during nightime hours. Upon refueling at Darwin, proceeded to Area B4 in the South China Sea via Banda, Molucca, Celebes, and Sulu Seas, to the Mindoro Strait. Same course was followed home without a stop at Brisbane as have plenty of fuel for the return trip to Brisbane. September 12 ---------------- 0900 Departed Brisbane, Australia in company with THUNDERFISH en route assigned patrol area via Darwin. 1115 Rendezvoused with Escort in Moreton Bay. 1215 Trim Dive 1245 Surfaced 1500 Escort detached. 1550 Departed company of THUNDERFISH. Set course for Darwin, Australia. September 13-15 ---------------- En route Darwin. Uneventful. September 16 ------------- 1200 Entered Torres Strait. Slowed to 11 kts. 1521 Spotted floating mine bearing 274. Ordered 20mm guns manned. 1525- Detonated mine via 20mm gunfire. 1530 September 17-18 ---------------- En route Darwin. Uneventful. September 19 ---------------- 0700 Arrived Darwin, docked at tender. Refueled. 1800 Departed Darwin for assigned patrol area. September 20 ------------- En route area.Uneventful. September 21 ------------ En route area. 0000 Entered Banda Sea. 1307 SD Contact 17100 yards, closing. (Aircraft Contact No.1) 1308 Dive 1311 Depth 150 ft. Explosions above, not close. 1313 More explosions. 1314 More explosions. 1650 Surface. September 22 ------------- En route area. Transited Molucca Sea. September 23 ------------- TORPEDO ATTACK NO.1 1000 Entered Celebes Sea. 1645 SJ contact bearing 032 19200 yds.(Ship Contact No.1) 1658 Destroyer spotted bearing 023 8000 yds!. Turned to evade pull ahead. 1659 Shell splash astern port, 100 yards! Dive! 1701 Leveled off 100 ft. GENERAL QUARTERS-TORPEDO-SUBMERGED. 1704 Periscope depth, DD spoted 3000 yards, closing. Began turned into DD for "Down the Throat Shot". 1705 Pinging commenced, DD closed high rate of speed, zero AOB. 1706: Fired Tubes 1,2,3,4 "Down the Throat". Range 600-650 yards. 15 1706: Ordered 400 ft, Rigged for Silent Running and Depth charge last last torpedo exited 35 tube. 1706: As passed 81 ft, torpedo impact! 55 1707: Explosion, possibly premature detonation. 02 1707: Torpedo impact! Multiple large secondary explosions 15 1708 Stopped descent at 200 ft, began rise to periscope depth. 1709 Series of large, loud explosions and noises of vessel breaking up. 1711 Multiple explosions, possibly depth charges. 1712 Periscope depth. Large oil slick and debris field visible. Three lifeboats observed. 1713 Noises of ship breaking up. Asashio Class DD 2370 tons sunk. 1720 Surfaced. 1730 Examined debris field. 1745 Departed area, set course for Sibutu Pass. 1802 Secured GQ. September 24 -------------- En route area. 1930 Heavy seas. Winds 29 kts direction 357 2000 Began transit Sibutu Pass Northbound. 2046 SJ contacts bearing 005 21000 yds.(Ship Contact No.2) Likely patrol. Moved to avoid. 2212 SJ contact bearing 274 18000 yards. (Ship Contact No.3) Likley patrol east Sibutu Pass. Moved to avoid. TORPEDO ATTACK NO.2 2335 SJ contact bearing 002 19200 yards. (Ship Contact No.4) 2341 Multiple pips, believed contact possible convoy. Set course to investigate. 2343 GENERAL QUARTERS-TORPEDO-SURFACE 2351 Contact Report sent to COMTF42. Serial 00001 Convoy Sighted. Two AK One DD 5-26N 118-28E in Sibutu Passage Course 137 Speed 9 knots. September 25 ------------- TORPEDO ATTACK NO.2 (Continued) 0005 Received Reply from COMTF72.Serial 001244 Ordered to attack. 0006 DD observed astern guarding two AK. 0007 Turned about for stern shot. 0019 Fired tubes 7,8,9 at mid sized AK, fired tube 10 at smaller AK. Ranges 2600/2800 yards. 0020 All four torpedoes prematurely detonated. Enemy alerted but did not spot CISCO. Departed area at high speed. Secured GQ. 0600 West of Panay in Area F1. 0800 Transited Mindoro Strait Northbound. 1849 SD contact 12150 yards, closing! (Aircraft Contact No.2) Dive! 1851 Explosions above, not close. CISCO at 150 ft. 1853 More explosions. 2000 Surface September 26 ------------- En route assigned area. September 27 ------------ Patrol in area. 0000 Entered assigned Area B4. 1431 Aircraft spotted bearing 091 11000 yards. SD did not detect low flying aircraft. Dive! (Aircraft Contact No.3) 2000 Surface. September 28 ------------- Patrol in area. Uneventful. September 29 ------------- Patrol in area. Uneventful. September 30 ------------- Patrol in area. Uneventful. October 1 ----------- TORPEDO ATTACK NO.3 0216 SJ contacts bearing 317 19200 yards.(Ship Contact No.5) Turned to course 135 flank speed to close contacts. 0225 Convoy Sighted. GENERAL QUARTERS-TORPEDO-SURFACE 0231 Contact report sent to COMTF42. Serial 00002 Convoy Sighted. 13-15N 113-04E Seven AK, One AO, Two SC. Course 050 Speed 9 kts 0308 Tubes 1,2,3,4,5,6 made ready for firing. 0311 Just as prepared to fire from 2500 yards, convoy made a zig to the west towards CISCO. Backed down to keep range open and avoid detection. 0316 Lead escort Aux Subchaser bearing 000 2000 yards. Tense moments as CISCO backed away to avoid detection. 0321 Convoy settled on course 355 8.5 knots. CISCO in perfect attack position off port side. 0324 Escort swept out towards CISCO, then resumed station. 0326 Fired tubes 1,2,3,4 at AO (Target No.1). Fired tubes 5,6, at AK(Target No.2). Ranges 2800/2500 yards. 0327 Four torpedoes hit AO similar to ARARE MARU 2800 tons. All torpedoes were duds. 0328 Torpedo five hit AK, dud. Torpedo six hit target under forward mast, setting off a massive series of explosions. Vessel masts and superstructure collapsed, vessel left burning bow to stern. Vessel soon began to settle. 0329 Turned away at high speed, illuminated by star shells but enemy escorts did not appear to locate CISCO. 0337 AK similar to JOKUJA MARU 7000 tons sunk at 13-17N 113-10E in South China Sea. 0345 Secured GQ. Ordered bow tubes reloaded. Pulled ahead for dawn periscope attack. 0545 All forward tubes reloaded. Convoy astern 12000 yards. TORPEDO ATTACK NO.4 0843 Convoy zigged at dawn to new course of 340. 0844 GENERAL QUARTERS-TORPEDO-SUBMERGED 0901 Dive. 1012 Fired tubes 7,8,9,10 at AO ARARE MARU. Range 2128 yards. 1013 Four premature explosions 1014 Escorts alerted, closing fast. Ordered 400 ft. Rigged for depth charge and silent running. 1016 Pinging. Passed thermal layer at 188 ft. 1019 Pinging. 1021 Begin Depth Charge Attack No 1. Splashes audible as escort passed above. CISCO at 400 ft. 1022 DC explosions, not close. More pinging, second escort closing. 1028 DC explosions, close. 1031 Closed DC explosion, boat shaken. Depth 475 ft. 1036 Depth of 500 ft. 1038 Close DC explosions, boat shaken. 1044 Escort above. Splashes. 1046 DC explosions. Boat shaken. 1058 Many DC explosions above. CISCO depth 575 ft. 1114 Depth: 600 ft. DC explosions above. 1201 Last Depth charge. 1330 Enemy appears to have lost contact. 1440 Lost contact with enemy. Secured GQ, maintained Silent Running. 1600 Periscope and Radar depth. All clear. Secured silent running. 1615 200 ft. Ordered six remaining torpedoes withdrawn from tubes and checked, due to repeated failures in last two attacks. Did not pursue as was at the limit of assigned area. 2000 Surfaced. October 2 ---------- Patrol in area. 1245 SD contact 17200 yards, closing (Aircraft Contact No.4) Dive! 1518 Surfaced. October 3 ---------- Patrol in area. 1536 Received Contact Report. COMTF42 Serial No. 14404. Large convoy 14-48N 116-55E Course 160 7 kts. Convoy should transit area 4 October. 1540 Set course to intercept at 15 knots. October 4 ----------- TORPEDO ATTACK NO.5 0018 SJ contacts bearing 014 18835 yards.(Ship Contact No.6) 0030 GENERAL QUARTERS-TORPEDO-SURFACE 0058 While approaching to fire on starboard column of convoy, a ship in port column exploded. Believe a unknown submarine, likely vectored in by same contact report. Both the lead and trailing escort rushed to port side of convoy, leaving starboard side open. CISCO moved in for attack. 0059 Second AK hit by torpedoes from unknown sub. 0126 Fired tubes 1,2,3,4 at AK KENYO MARU. Range 2437 yards. 0128 Four torpedo impacts! Vessel burning, settling in water. CISCO turned away to clear as escort turned toward stricken vessel. 0131 Large explosion from AK KENYO MARU. 0132 Depth charge explosions heard/observed. Possibly depth charging other boat. 0133 Escort attempting to catch up with CISCO. 0140 AK KENYO MARU sunk at 13-55N 116-45E 0142 Enemy escort ended pursuit of CISCO, turned back to convoy. 0206 Convoy appeared to scatter into two groups with one escort covering each. Maneuvered to approach on closest group to use last two torpedoes. TORPEDO ATTACK NO.6 0258 Fired tubes 5,6. Range 2200 yards. All torpedoes expended. 0300 Torpedo impact! Torpedo impact ! Two hits, Large explosions. 0301 CISCO under fire from AK. Chidori DE astern 400 yards closing high speed. 0310 Chidori slowed, turned back towards convoy. 0311 Large explosions from torpedoed AK. 0312 Second series of large explosions from AK. Large fires visible. 0313 Chidori circling, dropping depth charges, believed CISCO submerged. AK DAITOKU MARU 7590 tons sunk by stern at 13-48N 116-41E 0325 Secured GQ. All torpedoes expended. Set course for Brisbane. 1950 Transited Mindoro Strait Southbound. Heavy fog. Choppy seas. Winds 13 kts direction 060. October 5 ---------- En route Brisbane. 2025 SJ contacts bearing 257 20000 yards. (Ship Contact No.7) 2029 Spotted two DD. Avoided. October 6-17 --------------- En route Brisbane. Uneventful. October 18 ------------- Docked at Brisbane, Australia. Terminated war patrol. WEATHER _______ Weather during transit and in area was overall pleasant. Brief periods of high winds and heavy seas did occur. AIDES TO NAVIGATION ___________________ No navigational aides were encountered in area. CONTACTS ________ SHIPS --------- NO.1 DATE 1943/09/23 TIME 1645 LAT 2-18N LOG 124-46E BRG 032 RNG 19200 yds CRS 180 SPD 20+ HOW SJ-Visual TYPE DD REMARK Torpedo Attack No.1 NO.2 DATE 1943/09/24 TIME 2046 LAT 4-46N LOG 119-35E BRG 005 RNG 21000 yds CRS -- SPD -- HOW SJ only TYPE -- REMARK Likey patrol. Two pips on scope. NO.3 DATE 1943/09/24 TIME 2212 LAT 5-16N LOG 119-29E BRG 274 RNG 18000 yds CRS -- SPD -- HOW SJ only TYPE -- REMARK Likely patrol East of Sibutu Pass. NO.4 DATE 1943/09/24 TIME 2335 LAT 5-24N LOG 119-28E BRG 002 RNG 19200 yds CRS 138 SPD 9 kts HOW SJ-Visual TYPE AK, AK, DD REMARK Small Convoy. Torpedo Attack No.2 NO.5 DATE 1943/10/01 TIME 0216 LAT 13-17N LOG 113-0E BRG 317 RNG 19200 yds CRS 050 SPD 9 kts HOW SJ-Visual TYPE AK,AK,AO,AK,AK,AK,AK,AK, SC,SC REMARK Torpedo Attack No.3 Torpedo Attack No.4 NO.6 DATE 1943/10/04 TIME 0018 LAT 13-55N LOG 116-37E BRG 252 RNG 18835 yds CRS 216 SPD 7 kts HOW SJ-Visual TYPE AK,AK,AK,AK,AK,AK,AK,AK, DE,SC REMARK Torpedo Attack No.5 Torpedo Attack No.6 NO.7 DATE 1943/10/05 TIME 2025 LAT 7-33N LOG 120-39E BRG 257 RNG 20000 yds CRS 115 SPD 16 kts HOW SJ-Visual TYPE DD,DE REMARK Patrol in Sulu Sea. Aircraft --------- NO.1 DATE 1943/09/21 TIME 1307 LAT 5-42S LOG 126-27E BRG -- RNG 17100 yds CRS -- SPD -- ALT -- HOW SD only TYPE -- REMARK Banda Sea, 120 NM South of Buru. Bombed by AC. NO.2 DATE 1943/09/26 TIME 1849 LAT 12-50N LOG 120-0E BRG -- RNG 12150 yds CRS -- SPD -- ALT -- HOW SD only TYPE -- REMARK Bombed by AC NO.3 DATE 1943/09/27 TIME 1431 LAT 13-20N LOG 116-10E BRG 091 RNG 11000 yds CRS 210 SPD 150 kts ALT 800 ft HOW Visual only TYPE G4M BETTY REMARK Low flying aircraft, SD did not detect. NO.4 DATE 1943/10/02 TIME 1245 LAT 13-45N LOG 114-23E BRG -- RNG 17200 yds CRS -- SPD -- ALT -- HOW SD only TYPE -- REMARK TORPEDO ATTACKS _______________ USS CISCO SS-290 TORPEDO ATTACK NO.1 WAR PATROL NO.1 DATE: 1943/09/23 TIME:1707 LAT:2-18N LOG:123-43E ------------------------------------------------ TYPE OF ATTACK Submerged-Periscope-Day SHIPS SUNK Asashio Class Destroyer 2370 tons 2-18N 123-43E 1943/09/23 1713 Verified by: All hands heard torpedoes impact, multiple other explosions followed by vessel breaking up. Large oil slick and debris field plus lifeboats observed on surface. SHIPS PROBABLY SUNK SHIPS DAMAGED SHIPS PROBABLY DAMAGED TARGET DATA (at firing) -------------------------------- CLASS DD NAME Asashio TONS 2370 DRAFT 11.2 ft MAST 88.6 ft CRS 180 SPD 24 kts AOB 0 RNG 600-650 yds BRG 000 TRUE BRG 286 REMARK TORPEDO FIRE CONTROL DATA (at firing) ------------------------------------- TUBE NO.1 TYPE MK 14-1A SERIAL NO.32450 EXPLODER MK 6 SERIAL NO.5000 GYRO 0 COURSE 286 TRACK 0 METHOD Single bearing SPREAD 0 INTERVAL 5 seconds POWER High DEPTH 6 ft POA Bow ACTUATION Magnetic-Contact ACTUAL ACTUATION- Magnetic-Contact HIT Yes POI -- ERRATIC No MALFUNCTION No REMARK TUBE NO.2 TYPE MK 14-1A SERIAL NO.32451 EXPLODER MK 6 SERIAL NO.5001 GYRO 0 COURSE 286 TRACK 0 METHOD Single bearing SPREAD 0 INTERVAL 5 seconds POWER High DEPTH 6 ft POA Bow ACTUATION Magnetic-Contact ACTUAL ACTUATION- Magnetic HIT No POI -- ERRATIC No MALFUNCTION Yes REMARK Prematurely detonated TUBE NO.3 TYPE MK 14-1A SERIAL NO.32452 EXPLODER MK 6 SERIAL NO.5002 GYRO 0 COURSE 28285 TRACK 1 P METHOD Single bearing SPREAD 0 INTERVAL 5 seconds POWER High DEPTH 6 ft POA Bow ACTUATION Magnetic-Contact ACTUAL ACTUATION- Magnetic-Contact HIT Yes POI -- ERRATIC No MALFUNCTION No REMARK TUBE NO.4 TYPE MK 14-1A SERIAL NO.32453 EXPLODER MK 6 SERIAL NO.5003 GYRO 0 COURSE 284 TRACK 2 P METHOD Single bearing SPREAD 0 INTERVAL 5 seconds POWER High DEPTH 6 ft POA Bow ACTUATION Magnetic-Contact ACTUAL ACTUATION- None HIT No POI -- ERRATIC No MALFUNCTION No REMARK Missed. Reached end of run. OWN SHIP DATA (at firing) -------------------------- DEPTH 64 COURSE 340 SPEED 6 kts ANGLE 1 down SEA STATE Calm REMARK __________________________________________________ __________________________________________________ USS CISCO SS-290 TORPEDO ATTACK NO.2 WAR PATROL NO.1 DATE: 1943/09/25 TIME:0019 LAT:5-26N LOG:119-25E ------------------------------------------------ TYPE OF ATTACK Night Surface-Torpedo SHIPS SUNK None SHIPS PROBABLY SUNK None SHIPS DAMAGED None SHIPS PROBABLY DAMAGED None TARGET DATA (at firing) -------------------------------- CLASS AK 5000 tons, AK 2500 tons NAME Unknown, similiar to AKAMA MARU and ZUKAI MARU. TONS 5000/2500 DRAFT 25/20 ft MAST -- CRS 138 SPD 9 kts AOB 83/107 P RNG 2500/2800 yds BRG 195/175 TRUE BRG 242/233 REMARK AK No.1- 5000 tons AK No.2=2500 tons TORPEDO FIRE CONTROL DATA (at firing) ------------------------------------- TUBE NO.7 TYPE MK 14-1A SERIAL NO.32473 EXPLODER MK 6 SERIAL NO.5023 GYRO 160 P COURSE 180 TRACK 170 P METHOD Single bearing SPREAD Divergent INTERVAL 5 seconds POWER High DEPTH 10 ft POA MOT ACTUATION Magnetic-Contact ACTUAL ACTUATION Magnetic HIT No POI -- ERRATIC No MALFUNCTION Yes REMARK Premature detonation TUBE NO. 8 TYPE MK 14-1A SERIAL NO.32472 EXPLODER MK 6 SERIAL NO.5022 GYRO 160 P COURSE 180 TRACK 170 P METHOD Single bearing SPREAD Divergent INTERVAL 5 seconds POWER High DEPTH 10 ft POA MOT ACTUATION Magnetic-Contact ACTUAL ACTUATION Magnetic HIT No POI -- ERRATIC No MALFUNCTION Yes REMARK Premature detonation TUBE NO. 9 TYPE MK 14-1A SERIAL NO.32471 EXPLODER MK 6 SERIAL NO.5021 GYRO 160 P COURSE 180 TRACK 170 P METHOD Single bearing SPREAD Divergent INTERVAL 5 seconds POWER High DEPTH 10 ft POA MOT ACTUATION Magnetic-Contact ACTUAL ACTUATION Magnetic HIT No POI -- ERRATIC No MALFUNCTION Yes REMARK Premature detonation TUBE NO. 10 TYPE MK 14-1A SERIAL NO.32470 EXPLODER MK 6 SERIAL NO.5020 GYRO 160 P COURSE 180 TRACK 170 P METHOD Single bearing SPREAD Divergent INTERVAL 5 seconds POWER High DEPTH 10 ft POA MOT ACTUATION Magnetic-Contact ACTUAL ACTUATION Magnetic HIT No POI -- ERRATIC No MALFUNCTION Yes REMARK Premature detonation OWN SHIP DATA (at firing) -------------------------- DEPTH Surfaced COURSE 095 SPEED 3 kts ANGLE 0 up/down SEA STATE Heavy REMARK __________________________________________________ ______________________________________________ USS CISCO SS-290 TORPEDO ATTACK NO.3 WAR PATROL NO.1 DATE: 1943/10/01 TIME:0326 LAT:13-17N LOG:113-10E ------------------------------------------------ TYPE OF ATTACK Night Surface-Torpedo SHIPS SUNK AK JOKUJA MARU 7390 tons 13-17N 113-10E 1943/10/01 0337 Verified by: Observe torpedoes hit, vessel sink visually and by radar. SHIPS PROBABLY SUNK None SHIPS DAMAGED None SHIPS PROBABLY DAMAGED None TARGET DATA (at firing) -------------------------------- CLASS AO NAME ARARE MARU TONS 2800 DRAFT 15 FT MAST 90.9 FT CRS 355 SPD 8.5 kts AOB 75 P RNG 2800 yds BRG 020 TRUE BRG 103 REMARK CLASS AK NAME JOKUJA MARU TONS 7390 DRAFT 27 FT MAST 121.4 CRS 355 SPD 8.5 kts AOB 94 P RNG 2500 yds BRG 352 TRUE BRG 076 REMARK TORPEDO FIRE CONTROL DATA (at firing) ------------------------------------- TUBE NO.1 TYPE MK 14-1A SERIAL NO.32480 EXPLODER MK 6 SERIAL NO.5040 GYRO 010 P COURSE 093 TRACK 84 P METHOD Single bearing SPREAD Divergent INTERVAL 5 seconds POWER High DEPTH 5 ft POA MOT ACTUATION Magnetic-Contact ACTUAL ACTUATION -- HIT Yes POI MOT ERRATIC NO MALFUNCTION Yes REMARK DUD TUBE NO.2 TYPE MK 14-1A SERIAL NO.32481 EXPLODER MK 6 SERIAL NO.5041 GYRO 010 P COURSE 093 TRACK 84 P METHOD Single bearing SPREAD Divergent INTERVAL 5 seconds POWER High DEPTH 5 ft POA MOT ACTUATION Magnetic-Contact ACTUAL ACTUATION -- HIT Yes POI MOT ERRATIC NO MALFUNCTION Yes REMARK DUD TUBE NO.3 TYPE MK 14-1A SERIAL NO.32482 EXPLODER MK 6 SERIAL NO.5042 GYRO 010 P COURSE 093 TRACK 84 P METHOD Single bearing SPREAD Divergent INTERVAL 5 seconds POWER High DEPTH 5 ft POA MOT ACTUATION Magnetic-Contact ACTUAL ACTUATION -- HIT Yes POI MOT ERRATIC NO MALFUNCTION Yes REMARK DUD TUBE NO.4 TYPE MK 14-1A SERIAL NO.32483 EXPLODER MK 6 SERIAL NO.5043 GYRO 010 P COURSE 093 TRACK 84 P METHOD Single bearing SPREAD Divergent INTERVAL 5 seconds POWER High DEPTH 5 ft POA MOT ACTUATION Magnetic-Contact ACTUAL ACTUATION -- HIT Yes POI MOT ERRATIC NO MALFUNCTION Yes REMARK DUD TUBE NO.5 TYPE MK 14-1A SERIAL NO.32484 EXPLODER MK 6 SERIAL NO.5044 GYRO 340 P COURSE 064 P TRACK 106 P METHOD Single bearing SPREAD Divergent INTERVAL 5 seconds POWER High DEPTH 5 ft POA MOT ACTUATION Magnetic-Contact ACTUAL ACTUATION -- HIT Yes ERRATIC NO MALFUNCTION Yes REMARK DUD TUBE NO.6 TYPE MK 14-1A SERIAL NO.32485 EXPLODER MK 6 SERIAL NO.5045 GYRO 340 P COURSE 064 P TRACK 106 P METHOD Single bearing SPREAD Divergent INTERVAL 5 seconds POWER High DEPTH 5 ft POA MOT ACTUATION Magnetic-Contact ACTUAL ACTUATION Magnetic-Contact HIT Yes ERRATIC NO MALFUNCTION No REMARK OWN SHIP DATA (at firing) -------------------------- DEPTH Surfaced COURSE 102 SPEED 3 KTS ANGLE 0 up/down SEA STATE Calm REMARK __________________________________________________ _____________________________________ USS CISCO SS-290 TORPEDO ATTACK NO.4 WAR PATROL NO.1 DATE: 1943/10/01 TIME: 1012 LAT:15-39N LOG:113-12E ------------------------------------------------ TYPE OF ATTACK Night Surface-Torpedo SHIPS SUNK None SHIPS PROBABLY SUNK None SHIPS DAMAGED None SHIPS PROBABLY DAMAGED None TARGET DATA (at firing) -------------------------------- CLASS AO NAME ARARE MARU TONS 2800 DRAFT 14.8 ft MAST 90.9 ft CRS 340 SPD 9 kts AOB 78 P RNG 2128 yds BRG 195 TRUE BRG 083 REMARK TORPEDO FIRE CONTROL DATA (at firing) ------------------------------------- TUBE NO.7 TYPE MK 14-1A SERIAL NO.32474 EXPLODER MK 6 SERIAL NO.5024 GYRO 04 P COURSE 253 TRACK 91 P METHOD Single Bearing SPREAD Divergent INTERVAL 5 seconds POWER High DEPTH 5 ft POA MOT ACTUATION Magnetic-Contact ACTUAL ACTUATION Magnetic HIT No POI -- ERRATIC No MALFUNCTION Yes REMARK Prematurely Detonated TUBE NO.8 TYPE MK 14-1A SERIAL NO.32475 EXPLODER MK 6 SERIAL NO.5025 GYRO 04 P COURSE 253 TRACK 91 P METHOD Single Bearing SPREAD Divergent INTERVAL 5 seconds POWER High DEPTH 5 ft POA MOT ACTUATION Magnetic-Contact ACTUAL ACTUATION Magnetic HIT No POI -- ERRATIC No MALFUNCTION Yes REMARK Prematurely Detonated TUBE NO.9 TYPE MK 14-1A SERIAL NO.32476 EXPLODER MK 6 SERIAL NO.5026 GYRO 04 P COURSE 253 TRACK 91 P METHOD Single Bearing SPREAD Divergent INTERVAL 5 seconds POWER High DEPTH 5 ft POA MOT ACTUATION Magnetic-Contact ACTUAL ACTUATION Magnetic HIT No POI -- ERRATIC No MALFUNCTION Yes REMARK Prematurely Detonated TUBE NO.10 TYPE MK 14-1A SERIAL NO.32476 EXPLODER MK 6 SERIAL NO.5026 GYRO 04 P COURSE 253 TRACK 91 P METHOD Single Bearing SPREAD Divergent INTERVAL 5 seconds POWER High DEPTH 5 ft POA MOT ACTUATION Magnetic-Contact ACTUAL ACTUATION Magnetic HIT No POI -- ERRATIC No MALFUNCTION Yes REMARK Prematurely Detonated OWN SHIP DATA (at firing) -------------------------- DEPTH Surface COURSE 265 SPEED 4 kts ANGLE 0 up/down SEA STATE Calm REMARK __________________________________________________ _____________________________________________ USS CISCO SS-290 TORPEDO ATTACK NO.5 WAR PATROL NO.1 DATE: 1943/10/04 TIME:0126 LAT:13-55N LOG:116-45E ------------------------------------------------ TYPE OF ATTACK Night Surface-Torpedo SHIPS SUNK AK KENYO MARU 8150 tons 13-55N 116-45E 1943/10/04 0140 Verified by: Observed torpedoes impact, vessel sink visually and via radar. SHIPS PROBABLY SUNK None SHIPS DAMAGED None SHIPS PROBABLY DAMAGED None TARGET DATA (at firing) -------------------------------- CLASS AK NAME KENYO MARU TONS 8150 DRAFT 28.5 ft MAST 98.4 CRS 216 SPD 7 kts AOB 93 S RNG 2437 yds BRG 347 TRUE BRG 119 REMARK TORPEDO FIRE CONTROL DATA (at firing) ------------------------------------- TUBE NO.1 TYPE MK 14-1A SERIAL NO.32486 EXPLODER MK 6 SERIAL NO.5046 GYRO 356 S COURSE 128 TRACK 84 S METHOD Constant Bearing SPREAD Divergent INTERVAL 5 seconds POWER High DEPTH 15 ft POA MOT ACTUATION Magnetic-Contact ACTUAL ACTUATION Magnetic-Contact HIT Yes POI MOT ERRATIC NO MALFUNCTION No REMARK TUBE NO.2 TYPE MK 14-1A SERIAL NO.32487 EXPLODER MK 6 SERIAL NO.5047 GYRO 356 S COURSE 128 TRACK 84 S METHOD Constant Bearing SPREAD Divergent INTERVAL 5 seconds POWER High DEPTH 15 ft POA MOT ACTUATION Magnetic-Contact ACTUAL ACTUATION Magnetic-Contact HIT Yes POI MOT ERRATIC NO MALFUNCTION No REMARK TUBE NO.3 TYPE MK 14-1A SERIAL NO.32488 EXPLODER MK 6 SERIAL NO.5048 GYRO 356 S COURSE 128 TRACK 84 S METHOD Constant Bearing SPREAD Divergent INTERVAL 5 seconds POWER High DEPTH 15 ft POA Fore Mast ACTUATION Magnetic-Contact ACTUAL ACTUATION Magnetic-Contact HIT Yes POI Fore Mast ERRATIC NO MALFUNCTION No REMARK TUBE NO.4 TYPE MK 14-1A SERIAL NO.32489 EXPLODER MK 6 SERIAL NO.5049 GYRO 356 S COURSE 128 TRACK 84 S METHOD Constant Bearing SPREAD Divergent INTERVAL 5 seconds POWER High DEPTH 15 ft POA Aft Mast ACTUATION Magnetic-Contact ACTUAL ACTUATION Magnetic-Contact HIT Yes POI Aft Mast ERRATIC NO MALFUNCTION No REMARK OWN SHIP DATA (at firing) -------------------------- DEPTH Surfaced COURSE 095 SPEED 3 kts ANGLE 1-down SEA STATE Heavy REMARK __________________________________________________ ___________ USS CISCO SS-290 TORPEDO ATTACK NO.6 WAR PATROL NO.1 DATE: 1943/10/04 TIME: 0258 LAT:13-48N LOG:116-41E ------------------------------------------------ TYPE OF ATTACK Night Surface-Torpedo SHIPS SUNK DAITOKU MARU 7590 tons 13-48N 116-41E 1943/10/04 Verified by: Observed torpedoes impact, vessel sink visually and via radar. SHIPS PROBABLY SUNK None SHIPS DAMAGED None SHIPS PROBABLY DAMAGED None TARGET DATA (at firing) -------------------------------- CLASS AK NAME DAITOKU MARU TONS 7590 tons DRAFT 27.6 ft MAST 121.4ft CRS 225 SPD 4.5 kts AOB 48 P RNG 2200 yds BRG 008 TRUE BRG 15 REMARK TORPEDO FIRE CONTROL DATA (at firing) ------------------------------------- TUBE NO.5 TYPE MK 14-1A SERIAL NO.32490 EXPLODER MK 6 SERIAL NO.5050 GYRO 05 L COURSE 011 TRACK 50 P METHOD Constant Bearing SPREAD Divergent INTERVAL 5 seconds POWER High DEPTH 15 ft POA MOT ACTUATION Magnetic-Contact ACTUAL ACTUATION Magnetic-Contact HIT Yes POI Stern ERRATIC No MALFUNCTION No REMARK TUBE NO.6 TYPE MK 14-1A SERIAL NO.32491 EXPLODER MK 6 SERIAL NO.5051 GYRO 05 L COURSE 011 TRACK 50 P METHOD Constant Bearing SPREAD Divergent INTERVAL 5 seconds POWER High DEPTH 15 ft POA MOT ACTUATION Magnetic-Contact ACTUAL ACTUATION Magnetic-Contact HIT Yes POI Stern ERRATIC No MALFUNCTION No REMARK OWN SHIP DATA (at firing) -------------------------- DEPTH Surfaced COURSE 300 SPEED 4 kts ANGLE 1-down SEA STATE Heavy REMARK ANTI-SUBMARINE COUNTERMEASURES AND EVASION ___________________________________________ Enemy ASW was fairly standard. Convoys encountered had two escorts, one forward and one aft, with each conducting sweeps to cover port and starboard sides. 94 depth charges were dropped during Depth Charge Attack No.1. Evasion consisted of course, depth, and speed changes. Bursts of speed were made when enemy vessel was above and dropping charges to get out from under. Enemy appeared to have difficulties accurately tracking once CISCO reaches 500 ft. MAJOR DAMAGE AND DEFECTS ________________________ No major damage or material defects occurred during this patrol. Minor damage consisted of few broken light bulbs and glass fixtures due to depth charge explosions. SOUND GEAR AND SOUND CONDITIONS _______________________________ Sound gear and performance were overall satisfactory. RADAR SJ Radar performance was over excellent with average detection range of 20,000 yards. SD Radar performance was normal with average detection at 12000 yards. RADIO ______ Radio performance was normal. MINES ______ Floating, loose, mines were encountered in Torres Strait en route to Darwin. They were detonated by 20mm gunfire. DENSITY-THERMAL LAYERS _______________________ No.1 ---------- 1943/10/01 188 ft 13-17N 113-10E-South China Sea HEALTH AND HABITABILITY _______________________ Overall health and habitability were excellent. Meals were well prepared and the relatively short duration of patrol contributed. PERSONNEL _________ Crew performance and morale were excellent through the duration of the patrol. Officers: 7 Chief Petty Officers: 7 Men: 64 Total Crew: 79 Qualified in Submarines during patrol: 1 Officer 10 Men Advanced in Rating: 12 Men TORPEDO PERFORMANCE ___________________ Out of twenty four torpedoes expended, eight functioned properly. Eight confirmed premature explosions and six confirmed 'duds', as well as two more suspected duds occurred. Overhaul and pre patrol maintenance of torpedoes was conducted at Brisbane, Australia. MILES STEAMED-FUEL CONSUMED ___________________________ MILES GALLONS Brisbane to Darwin 2320 35550 Darwin to Area 2920 48200 In Area 6400 68200 Area to Brisbane 4250 59500 DURATION OF PATROL __________________ Days Brisbane to Darwin 7 Darwin to Area 8 In Area 8 Area to Brisbane 13 FACTORS IN ENDURANCE ____________________ Torpedoes:0 Fuel:23,000 gallons Provisions: 41 days Crew: Indefinite REMARKS _______ A busy and productive patrol with one destroyer, and three merchant vessels sunk for a total of 25,695 tons. However, due to continuing torpedo malfunctions, a valuable tanker was missed. Four torpedoes impacted tanker, all duds. On the follow up attack, four torpedoes prematurely detonated en route to target. Performance of the boat was excellent. Ability of the BALAO class to routinely operate at depths in excess of 400 feet provides a real advantage during evasion as enemy active and passive sound gear seems to have much reduced effectiveness tracking submerged vessels at these depth. J.W. Coe Last edited by Bubblehead1980; 05-27-22 at 05:12 AM. |
05-27-22, 05:38 AM | #5263 |
Navy Seal
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USS Cisco War Patrol One Screenshots
Screenshots for CISCO War Patrol ONE. Report in previous post. External cam was off but got a few decent ones.
AK DAITOKU MARU sinking after night surface attack. (Torpedo Attack No.5) AK KENYO MARU sinking after night surface attack (Torpedo Attack No.6) Playing with the internal free cam to walk around the deck. Snapped this one. External cam was off. Debris field of Asashio DD sunk in Torpedo Attack No.1. Due to the nature of the attack, a "down the throat shot", went below periscope depth after firing, heard impacts and breaking up noises. By the time came up to periscope depth, debris and lifeboats were all that were visible. This was captured after surfacing. Debris field of Asashio DD sunk in Torpedo Attack No.1. Due to the nature of the attack, a "down the throat shot", went below periscope depth after firing, heard impacts and breaking up noises. By the time came up to periscope depth, debris and lifeboats were all that were visible. Debris field of Asashio DD sunk in Torpedo Attack No.1. Due to the nature of the attack, a "down the throat shot", went below periscope depth after firing, heard impacts and breaking up noises. By the time came up to periscope depth, debris and lifeboats were all that were visible. Star shells after torpedoes hit KENYO MARU. Escort, a Aux Subchaser, at 2200 yards during night surface attack. The escort did not spot the submarine. |
05-30-22, 04:00 AM | #5264 |
Navy Seal
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USS Cisco War Patrol TWO 10 November-22 December 1943
TMO Update BH V2.0
100 difficulty. Cams and Contacts off. War Patrol Report USS Cisco SS-290 War Patrol TWO 10 November- PROLOGUE __________ Returned to Brisbane, Australia from First War Patrol on 18 October 1943. Normal refit conducted by tender U.S.S FULTON (AS-11). Liberty for crew followed by training period 4-8 November. sixteen MK 14-2A torpedoes loaded along with provisions 7-9 November. Per CTF 42 Secret Operation Order No.21-43, loaded cargo 8-9 November. Ready for sea 10 November. NARRATIVE _________ November 10 ------------ 0800 Underway for special mission in company with GRAYFISH per CTF 42 Secret Operation Order No.21-43. 0900 Rendezvoused with Escort (HMAS Katoonmba) in Moreton Bay. 1230 Departed company with escort. 1800 Departed company with GRAYFISH at dusk. Set course for Darwin via Torres Strait. November 11-15 -------------- En route Darwin. November 16 ------------ 1830 Docked at Darwin, Australia. November 17 ----------- 0700 Departed Darwin, Australia. November 18-20 ------------------- En route to complete special mission. November 21 ---------------- 2030 Began transit Sibutu Passage Northbound. 2055 SJ contact bearing 017 19000 yards. (Ship Contact No.1) 2100 SJ contacts began rapidly closing on CISCO. Turned to avoid at flank speed. 2104 One DD spotted astern bearing 170. GENERAL QUARTERS 2110 Unable to outrun pursuing DD. Dive! 2111 Passed 100 ft. Rigged for Silent Running. Rigged for Depth Charge. 2112 Passed Thermal layer at 150 ft. 2118 Leveled off at 500 ft. Enemy nearby, searching. 2119 Pinging. 2121 Splashes. (Depth Charge Attack No.1) 2122 DC explosions. 2124 More explosions. November 22 ------------ 0100 Enemy lost contact. CISCO at 600 ft. 0300 Lost contact with enemy. Secured GQ, Maintained silent running. 2000 Surfaced, began second attempt to transit Sibutu Pass. 2152 SJ Contacts bearing 093 18500 yards. Maneuvered to avoid. (Ship Contact No.2) November 23 --------------- 0130 Cleared Sibutu Pass. Set course for Negros Island. 0644 SJ Contacts bearing 311 18500 yds.(Ship Contact No.3) 0700 Identified as two DE type vessels on patrol, avoided. November 24 ----------- En route Negros Island. 0345 Off Negros Island, reconnoitered area. 0401 Spotted two fishing boats bearing 012 8000 yard (Ship Contact No.4) Avoided. 0404 Submerged. 0700 Began periscope reconnoiter of Basay, Negros area. 2050 Spotted security signal ashore. 2100 Surfaced. 2156 Deployed rubber boat with cargo. 2321 Deployed rubber boat with cargo. 2350 Special Mission completed. Departed area to conduct patrol in Area F4. November 25 ----------- Patrol in area. Uneventful. November 26 ----------- Patrol in area. Uneventful. November 27 ----------- 1958 SJ contact bearing 014 16200 yards(Ship Contact No.5) 2015 Spotted gunboat, identified as Karatsu ex USS Luzon PG-47. Due to heavy seas preventing torpedo attack on shallow draft target, avoided. November 28 --------------- Patrol in area. Uneventful. November 29 --------------- Per COMTF42, rotated to Area F5 in the Sulu Sea. November 30 --------------- Patrolled approaches North of Sibutu Pass. December 1 ----------- 1410 SJ contacts bearing 285 18100 yards. (Ship Contact No.6) 1425 Two PC. Avoided. December 2 ------------- Patrol in area. 2100 Received orders from CTF 42 to proceed to area VINEYARD. 2300 Began transit of Sibutu Pass Southbound December 3 ------------- 0133 SJ Contacts bearing 354 18050 yards (Ship Contact No.7) DD patrol in Sibutu Pass. Avoided. 0145 Gained position astern of DD patrol at 11000 yards as moved south. 0420 Exited Sibutu Pass-South. 0435 Lost SJ contact. 0938 SD contact 11000 yards. Simultaneously spotted by lookouts. Dive! (Aircraft Contact No.1) 0943 Thermal layer at 148 ft. December 4 ------------- En route to new area. December 5 ------------- 0000 Entered area VINEYARD. 0841 Aircraft Spotted! Bearing 015 9000 yards. Dive! (Aircraft Contact No.2) 0842 As CISCO passed 130 feet, three large explosions rocked the boat. Serious Damage Reported (See MAJOR DAMAGE AND DEFECTS for full report) 0843 Aft torpedo and Aft engine rooms report flooding. GENERAL QUARTERS called, Damage Control party formed and assigned to combat flooding. 0850 Began to experience trouble maintaining desired depth as boat drifted from 150 ft to 160 ft. 0855 Flooding reported under control. Several feet of water in aft torpedo and engine room compartments. Depth 164 ft. 1200 Secured GQ. DC party disbanded. Watch sections continued required repairs in in compartments. Engineering Officer began inspection of boat. 1230 Periscope depth. H6K MAVIS spotted bearing 072 7000 yards, still hunting in the area.Went to 200 feet. 2005 Surfaced. December 6 ----------- 0425 Heavy rains. Winds 21 knots direction 178. 0500 Inspection completed. Starboard propeller shaft repaired much as possible, but was found out of alignment which reduced maximum speed. Possible noise hazard as well. December 7 -------------- Storms in area. December 8 ------------- Storms in area. 1700 Storms ceased. Seas remained heavy. Winds 30 kts directions 257. December 9 ------------- 1843 SD contact 24100 yards.(Aircraft Contact No.3) Dive. 2010 Surfaced. December 10 -------------- 1252 SD contact 20500 yards closing. Dive. (Aircraft Contact No.4) 1519 Surfaced. December 11 -------------- 1141 Aircraft spotted bearing 093 8000 yards! Dive! (Aircraft Contact No.5) Aircraft (BETTY) flying in low fast, strafing with guns. Several rounds hit CISCO. 1142 Passed 75 feet, several large explosions, not close. 1530 Surfaced. 1745 SD contact 16,200 yards.(Aircraft Contact No.6) 1747 150 ft. 1748 Explosions above, not close. 1957 Surfaced. December 12 --------------- Patrol in area. Uneventful. December 13 --------------- 0710 Received Contact Report om Large Convoy that should pass through assigned area. Set course to intercept. 1209 SD contact 18000 yards. Closing. (Aircraft Contact No.7) Dive! 1303 Surfaced. 1645 SD contact 16600 yards closing. Dive! (Aircraft Contact No.8) 1648 Explosions, not close. 1900 Surfaced. December 14 --------------- Searched for convoy. Unable to locate. Possibly avoided area due to aircraft spotting reports. December 15 --------------- 0000 Set course per CTF 42 order to terminate patrol at Milne Bay, New Guinea due to fuel status. December 16 --------------- En route Milne Bay. TORPEDO ATTACK NO.1 0830 During morning trim dive, sound detected distant props bearing 343. 0840 Surfaced. Set course to investigate sound contact. 0917 Smoke spotted bearing 355 8 miles. (Ship Contact No.8) 0918 Contact Report sent to CTF42. Serial 20041B Convoy Sighted 4-02N 132-08E One AK, One AO, one SC Course 275 Speed 9 kts. 0919 Submerged for attack. Went to 400 ft to conduct high speed run to close for attack. 0922 GENERAL QUARTERS-TORPEDO. 0946 Periscope depth. One SC leading one mid sized AK and one large AO astern. Course 275 speed 9 kts. 1000 Tubes 1,2,3,4,5,6 made ready to fire. 1014 Fired tubes 1,2,3,4,5,6 at AO. Range 1469 yards. 1016 Four of six torpedoes hit target, setting it ablaze. Tanker was empty of fuel as did not "blow up" in character of loaded tankers. However, tanker keel was split amidships. 1017 Pinging began immediately. Ordered 450 ft, rigged for depth charge adn silent running. 1019 Thermal layer at 158 ft. 1021 Enemy above, splashes. (Depth Charge Attack No.2) 1022 Explosions, astern, no close. CISCO at 450 ft. 1027 Enemy above. Splashes. 1028 Explosions. Not close. 1053 Depth: 575 ft. 1125 Enemy appeared to lose contact. CISCO at depth of 585 ft. 1230 Secured GQ and rig for depth charge. Maintained Silent Running. 1800 Secured Silent Running 2000 Surfaced. December 17 --------------- 1750 SD contact 19100 yards (Aircraft Contact No.9) 1751 Dive. December 18-21 ------------------- En route Milne Bay. December 22 --------------- 0730 Docked at Milne Bay, New Guinea. Terminated war patrol. WEATHER ________ Weather throughout the patrol was overall pleasant, almost yachting like. A few days of high winds with heavy seas and seasonal storms plagued us in area. CONTACTS _________ Ships ------- No.1 DATE 1943/11/21 TIME 2055 LAT 4-40N LOG 119-41E BRG 017 RNG 19000 yds CRS 170 SPD 20+ HOW SJ-Visual TYPE DD,DD REMARK Depth Charge Attack No.1 Believe DD radar equipped. No.2 DATE 1943/11/22 TIME 2152 LAT 5-30N LOG 119-30E BRG 093 RNG 18500 yds CRS 130 SPD 16 kts HOW SJ-Visual TYPE DD,DD REMARK Patrol in Sibutu Pass. No.3 DATE 1943/11/23 TIME 0644 LAT 7-40N LOG 120-30E BRG 311 RNG 18500 yds CRS 220 SPD 16 kts HOW SJ-Visual TYPE DE,DE REMARK Patrol in Sulu Sea. No.4 DATE 1943/11/24 TIME 0401 LAT 9-23N LOG 122-28E BRG 093 RNG 8000 yds CRS 310 SPD 7 kts HOW Visual TYPE Fishing Boat, Fishing Boat REMARK No.5 DATE 1943/11/27 TIME 1958 LAT 9-0N LOG 122-0E BRG 014 RNG 16200 yds CRS 200 SPD 13 kts HOW SJ-Visual TYPE Gunboat REMARK No.6 DATE 1943/12/01 TIME 1410 LAT 9-58N LOG 121-35E BRG 285 RNG 18100 yds CRS 144 SPD 15 kts HOW SJ-Visual TYPE PC,PC REMARK No.7 DATE 1943/12/03 TIME 0133 LAT 4-55N LOG 119-37E BRG 354 RNG 18050 yds CRS 170 SPD 17 kts HOW SJ-Visual TYPE DD,DD REMARK DD patrol Sibutu Pass. No.8 DATE 1943/12/17 TIME 0917 LAT 4-05N LOG 132-08E BRG 355 RNG 16200 yds CRS 270 SPD 9 kts HOW Visual TYPE AK,AO,SC REMARK Torpedo Attack No.1 AIRCRAFT -------- NO.1 DATE 1943/12/03 TIME 0938 LAT 4-42N LOG 121-1E BRG 092 RNG 11000 yds ALT 800 SPD 200 CRS 345 HOW SD-Visual TYPE G4M BETTY REMARK NO.2 DATE 1943/12/05 TIME 0841 LAT 6-20N LOG 128-0E BRG 015 RNG 9000 yds ALT 600 ft SPD 160-180 kts CRS 225 HOW Visual only TYPE H6K MAVIS REMARK Bombed by AC. Heavy damage. NO.3 DATE 1943/12/09 TIME 1843 LAT 7-0N LOG 128-44E BRG -- RNG 24100 yds ALT -- SPD -- CRS -- HOW SD only TYPE -- REMARK NO.4 DATE 1943/12/10 TIME 1252 LAT 6-24N LOG 127-55E BRG -- RNG 20500 yds ALT -- SPD -- CRS -- HOW SD only TYPE -- REMARK NO.5 DATE 1943/12/11 TIME 1141 LAT 5-44N LOG 129-51E BRG 093 RNG 8000 yds ALT 500 SPD 180 kts CRS 270 HOW Visual only TYPE G4M Betty REMARK Bombed/Strafed by aircraft. No damage. No.6 DATE 1943/12/11 TIME 1745 LAT 5-44N LOG 129-51E BRG -- RNG 16200 yds ALT -- SPD -- CRS -- HOW SD only TYPE -- REMARK Bombed by aircraft, no damage. No.7 DATE 1943/12/13 TIME 1209 LAT 5-50N LOG 128-0E BRG -- RNG 18000 yds ALT -- SPD -- CRS -- HOW SD only TYPE -- REMARK No.8 DATE 1943/12/13 TIME 1645 LAT 5-30N LOG 128-50E BRG -- RNG 16600 yds ALT -- SPD -- CRS -- HOW SD only TYPE -- REMARK Bombed by aircraft. No.9 DATE 1943/12/17 TIME 1750 LAT 2-11N LOG 136-18E BRG -- RNG 19100 yds ALT -- SPD -- CRS -- HOW SD only TYPE -- REMARK ATTACK DATA ____________ USS CISCO SS-290 TORPEDO ATTACK NO.1 WAR PATROL NO.2 DATE: 1943/12/16 TIME: 1014 LAT:4-05N LOG:132-08E ------------------------------------------------ TYPE OF ATTACK Submerged-Periscope-Day SHIPS SUNK AO AKATSUKI MARU 10000 tons Verification: Observed four torpedo impacts. Vessel keel split in two, sunk. SHIPS PROBABLY SUNK None SHIPS DAMAGED None SHIPS PROBABLY DAMAGED None TARGET DATA (at firing) -------------------------------- CLASS AO NAME AKATSUKI MARU TONS 10000 DRAFT 28.2 ft MAST 98.4 ft CRS 275 SPD 9 kts AOB 84 P RNG 1469 yds BRG 000 TRUE BRG 006 REMARK Tanker not believed loaded with fuel/oil as did not "blow up" in manner characteristic of a loaded tanker. 4 inch guns forward, aft. TORPEDO FIRE CONTROL DATA (at firing) ---------------------------------------------- TUBE NO.1 TYPE MK 14-2A SERIAL NO.39450 EXPLODER MK 6-2 SERIAL NO.6300 GYRO 347 P COURSE 353 TRACK 97 P METHOD Constant Bearing SPREAD Divergent INTERVAL 4 seconds POWER High DEPTH 11 ft POA MOT ACTUATION Magnetic-Contact ACTUAL ACTUATION Magnetic-Contact HIT Yes POI MOT ERRATIC No MALFUNCTION No REMARK TUBE NO.2 TYPE MK 14-2A SERIAL NO.39451 EXPLODER MK 6-2 SERIAL NO.6301 GYRO 347 P COURSE 353 TRACK 97 P METHOD Constant Bearing SPREAD Divergent INTERVAL 4 seconds POWER High DEPTH 11 ft POA MOT ACTUATION Magnetic-Contact ACTUAL ACTUATION Magnetic-Contact HIT Yes POI MOT ERRATIC No MALFUNCTION No REMARK TUBE NO.3 TYPE MK 14-2A SERIAL NO.39452 EXPLODER MK 6-2 SERIAL NO.6302 GYRO 347 P COURSE 353 TRACK 97 P METHOD Constant Bearing SPREAD Divergent INTERVAL 4 seconds POWER High DEPTH 11 ft POA Aft Stack ACTUATION Magnetic-Contact ACTUAL ACTUATION Magnetic-Contact HIT Yes POI Aft Stack ERRATIC No MALFUNCTION No REMARK TUBE NO.4 TYPE MK 14-2A SERIAL NO.39453 EXPLODER MK 6-2 SERIAL NO.6303 GYRO 347 P COURSE 353 TRACK 97 P METHOD Constant Bearing SPREAD Divergent INTERVAL 4 seconds POWER High DEPTH 11 ft POA Fore Mast ACTUATION Magnetic-Contact ACTUAL ACTUATION Magnetic-Contact HIT Yes POI Bow ERRATIC No MALFUNCTION No REMARK TUBE NO.5 TYPE MK 14-2A SERIAL NO.39454 EXPLODER MK 6-2 SERIAL NO.6304 GYRO 347 P COURSE 353 TRACK 97 P METHOD Constant Bearing SPREAD Divergent INTERVAL 4 seconds POWER High DEPTH 11 ft POA +1 starboard ACTUATION Magnetic-Contact ACTUAL ACTUATION -- HIT No POI -- ERRATIC No MALFUNCTION No REMARK Torpedo missed when target slowed after four previous hits. TUBE NO.6 TYPE MK 14-2A SERIAL NO.39455 EXPLODER MK 6-2 SERIAL NO.6305 GYRO 347 P COURSE 353 TRACK 97 P METHOD Constant Bearing SPREAD Divergent INTERVAL 4 seconds POWER High DEPTH 11 ft POA MOT+1 port ACTUATION Magnetic-Contact ACTUAL ACTUATION -- HIT No POI -- ERRATIC No MALFUNCTION No REMARK Torpedo missed when target slowed after four previous hits. OWN SHIP DATA (at firing) -------------------------- DEPTH 61 ft COURSE 010 SPEED 2.5 kts ANGLE 2-down SEA STATE Choppy REMARK NAVIGATIONAL AIDES ___________________ Lights in the Sibutu Pass were spotted in Tawi Tawi area and aided in navigation. ANTI-SUBMARINE COUNTERMEASURES AND EVASION ___________________________________________ DEPTH CHARGE ATTACK NO.1 ------------------------- Enemy DD's in Sibutu Pass detected CISCO on the surface in excess of 10000 yards at night. Given there is no likely way CISCO was visually spotted, it is concluded they were radar equipped. Unable to outrun fleet type destroyers, CISCO submerged. Enemy Destroyer's were first team and located CISCO via active sonar at depth of 400 ft. The attack was fairly standard for Japanese ASW. However, enemy sonar capabilities seemed improved as they did not seem to lose solid contact with CISCO until reached a depth of 550 ft. Evasion consisted of depth and course changes along with "bursts" of speed when enemy was above, preparing to drop depth charges. Depth Charge Attack No.2 ------------------------- This depth charge attack conducted by the lone escort, a Auxiliary Subchaser of about 1000 tons was ineffective. After CISCO reached 500 ft, the enemy seemed to have difficulty maintaining solid contact with CISCO. The choppy sea state and thermal layers no doubt contributed to this as well. Evasion consisted of depth and course changes along with "bursts" of speed when enemy was above, preparing to drop depth charges. DAMAGE AND DEFECTS _________________________ Damage ------ Serious damage occurred courtesy of aircraft dropped depth charges/bombs on 5 December. All damage repaired at sea unless otherwise indicated. 1. Starboard prop shaft-Unable to completely repair at sea. Speed reduced by 1-1.5 kts. 2. Forward Batteries-Recharge capacity limited to 96 percent. 3. Flooding Aft Torpedo Room. Leaks repaired, two feet of water pumped out. 4. Flooding Aft Engine Room. Leaks repaired, three feet of water pumped out. 5. Trim Pump 6. Hydraulic Pump 7. No.1 Electric Motor 8. No.2 Electric Motor 9. Aft Batteries 10. Stern Dive Plane Transmission 11. Rudder Transmission 12. No.2 Diesel Engine 13. No.4 Diesel Engine 14. No.1 Periscope 15. No.2 Periscope 16. No.7 Torpedo Tube 17. No.9 Torpedo Tube 18. No.10 Torpedo Tube 19. Compressor 20. Light Bulbs- All compartments 21. Glass Fixtures-All compartments. 22. Aft Deck 20mm Gun. Defects ------- No major material defects occurred on this patrol. SOUND GEAR AND SOUND CONDITIONS _______________________________ Sound gear functioned well on this patrol. Sound conditions in area were overall optimal. Typical sound detection range was in excess of 15000 yards with precise tracking possible around 15000 yards. THERMAL LAYERS ______________ Thermal layers were encountered at 148ft, 150 ft, 158 ft. MINES _____ No mines were encountered on this patrol. RADAR ______ SJ SJ Radar performed well overall with typical detection range of 18000 yards. SD SD radar performance was normal. Several aircraft were not detected due to flying at or below 1000 ft. This includes the aircraft which was able to damage CISCO on 5 December. RADIO ______ Radio function was normal throughout the patrol. TORPEDO PERFORMANCE ____________________ Torpedo performance was much improved over previous patrols. No premature detonations occurred nor did any dud torpedoes occur. SPECIAL MISSION ________________ Approximately six tons of supplies were stored aboard and transported to Basay, Negros, Philippine Islands. To make room for these supplies eight torpedoes (four forward, four aft) were omitted on this patrol. Mission was conducted according to plan upon sighting of security signals ashore. Supplies were covertly sent ashore to friendly forces via rubber boat. Special Mission successfully completed. PERSONNEL _________ Crew performance was overall excellent on this patrol. Crew Stats ----------- Officers: 7 Chief Petty Officers: 7 Men: 65 Total: 79 One Officer and ten men Qualified in Submarines on this patrol. Eight men advanced in Rating on this patrol. One TM3c and one MoMM3c were detached at Milne Bay due to combat fatigue. HEALTH AND HABITABILITY _______________________ Heath and Habitability on this patrol were overall excellent. Meals were well prepared and generally favorable weather for most of patrol. Damage inflicted by aircraft bombs/depth charges did cause a period of stress but this was handled well by majority of crew. Two individuals were "broken" by the situation, sedated, and removed from duty for several days. These men were detached at Milne Bay. MILES STEAMED-FUEL CONSUMED ____________________________ MILES GALLONS Brisbane to Darwin 2320 16250 Darwin to Area 1750 22400 In Area 5000 40100 Area to Vineyard 850 12250 In Vineyard 4500 31600 Vineyard to Milne Bay 1950 28900 DURATION OF PATROL ___________________ DAYS Brisbane to Darwin 7 Darwin to Area 9 In Areas 16 Area to Milne Bay 10 FACTORS IN DURATION ___________________ TORPEDOES:10 FUEL: 30100 gallons PROVISIONS: 39 days CREW: Indefinite Factor in termination of patrol : Fuel Status/Battle Damage. REMARKS ________ A successful and somewhat eventful patrol. Areas patrolled upon completion of special mission were surprisingly void of shipping. Third assigned area did have a convoy pass through but it managed to evade with course changes. However, if had more fuel and thus time on station, it is likely would have located further shipping. Torpedo performance in the lone torpedo attack of this patrol was excellent. All four torpedoes which found their target detonated properly, sinking a valuable 10,000 ton enemy tanker. The two misses were assured hits but as last two torpedoes fired, the tanker was slowed by the four hits, causing a miss. Six torpedoes were fired as a precaution to ensure sinking the tanker as fuel status prevented any further pursuit in event of miss or malfunction. SD radar's inability to detect contacts at lower altitudes continues to be a liability on patrol. Damage sustained on 5 December by aircraft bombs/depth charges were a direct result of SD failing to detect low flying aircraft at distance to provide enough time to dive safely. J.W Coe |
06-01-22, 04:52 AM | #5265 |
Navy Seal
|
USS CISCO SS-290 THIRD WAR PATROL REPORT 1-31 January 1944
TMO Update BH V.20
100 difficulty. Cams on, map contacts off. War Patrol Report USS CISCO SS-290 Third War Patrol January 1-31, 1944 PROLOGUE _________ Arrived Milne Bay, New Guinea from Second War Patrol on 22 December 1943,docked at tender U.S.S. Fulton. Repairs conducted on starboard prop shaft along with normal overhaul by U.S.S. Fulton. New SJ-1 Surface Search Radar installed. Eight MK 18-1 Electric Torpedoes loaded in aft torpedo room. Sixteen MK 14-2A torpedoes loaded in forward torpedo room 30-31 December. Ready for sea 1 January 1944. NARRATIVE __________ 1944- January 1 ----------- 0800 Departed Milne Bay, New Guinea for assigned area in Truk-Rabaul sea lanes. January 2 ----------- 1127 SD Contact 18000 yards (Aircraft Contact No.1) Dive. January 3 ----------- 1622 Aircraft spotted bearing 193 9000 yards closing. (Aircraft Contact No.2) 2000 Surfaced January 4 ----------- 0100 Entered assigned area. 0200 Heavy seas. Winds 30 kts direction 277. January 5 ------------ TORPEDO ATTACK NO.1 --------------------------- 1423 SJ contacts bearing 010 26329 yards.(Ship Contact No.1) 1425 Two pips appeared to be on Northerly course. Rapid bearing change indicated high speed, possibly warships. Increased flank speed to pull ahead. 1530 GENERAL QUARTERS-TORPEDO 1534 Submerged for attack. 1540 Brought stern tubes to bear. 1552 One Aux Cruiser , one DD course 358 18 kts. 1556 Fired Tubes 7,8,9,10. Ranges 3350 yards. Torpedo (Tube 7) suffered apparent gyro failure, went far off firing bearing. 1559 Torpedo (Tube 9) hit stern of target. Fired visible. 1600 Remaining torpedoes missed, reached end of run. 1603 Observation. Enemy Aux Cruiser slowed, fire on stern. Prop believed disabled prop and or rudder. DD closing. 1604 Pinging. Rigged for Silent Running and Depth Charge. 1607 Depth Charge Attack No.1. Enemy above, splashes. CISCO at 400 ft. 1608 Explosions, astern. 1612 Pinging. 1631 Depth. 525 ft. 1636 Depth. 550 ft. Explosions above, not close. 1639 Large explosions from last bearing of damage aux cruiser. 1641 Noises of ship sinking. 1653 Noises of ship breaking up audible. AIKOKU MARU Auxiliary Cruiser 14280 tons sunk. 1702 Depth: 585 ft. Depth charge explosion, close. Boat shaken. 1741 Depth: 612 ft 1805 Depth 630 ft. DD was skilled, quite persistent. 1807 Lost contact with enemy. Believe enemy above, listening. 2343 At periscope depth. 2348 Radar depth. All cleared. Secured Silent Running. 2350 Surfaced. Secured GQ. January 7 ---------- Patrol in area. January 8 ----------- Patrol in area. Heavy seas with 30 kt winds direction 255-280. January 9 ----------- Patrol in area. Heavy seas/winds. January 10 ------------- Patrol in area. January 11 ------------- Patrol in the area. January 12 ----------- 1352 SD contact 19000 yds closing. (Aircraft Contact No.3) 1353 Dive! 1630 Surface 2334 SJ contacts bearing 006 28355 yards (Ship Contact No.2) 2335 Increased flank speed, set intercept course. 2355 PPI scope indicated large convoy on southbound course. January 13 ------------- TORPEDO ATTACK NO.2 --------------------------- 0000 Full moon. Moved to pass convoy down moon on starboard side. 0130 10000 yards off starboard side of convoy. Convoy is eight ships, two escorts, one forward, one astern. Course 200 9 kts. 0201 GENERAL QUARTERS-TORPEDO-SUBMERGED. Due to full moon, opted for submerged night attack. 0225 Convoy zigged. New course. 175. 0315 Submerged for attack. 0325 Radar depth. 0359 Tubes 1,2,3,4,5,6 made ready to fire. 0403 Fired tubes 1,2,3,4 at AO in center column. Range 3600 yds. 0404 Fired tubes 5,6, at AK in starboard column. Range 2400 yds. 0405 All four torpedoes hit the AO. Target exploded, burned, keel split. 0406 Torpedoes 5,6 hit AK. Target exploded in massive fireball and broken in two. Believe cargo was carrying ammunition due to nature of explosion after one torpedo hit. TORPEDO ATTACK NO.3 ---------------------------- 0415 Fired Tubes 7,10, at AK astern. 1300 yds. 0416 Two torpedoes hit target, fire visible. Vessel damaged but underway. 0441 AO sunk 1-36N 148-45E (Torpedo Attack No.2) 0442 AK sunk 1-36N 148-45E (Torpedo Attack No.2) 0450 Enemy escort passed about 6000 yards, did not detect CISCO. 0516 Torpedo Reload completed. Returned to periscope depth. 0520 Surfaced for end around and follow up attack. 0530 Dawn. 0545 Secured GQ. 0800 End around completed. Lost SJ contact. 0850 Regained SJ contact bearing 359 29100 yards. TORPEDO ATTACK NO.4 ---------------------------- 0910 GENERAL QUARTERS-TORPEDO-SUBMERGED. 0911 Dive. Just after sounding dive alarm, shell splashes spotted bearing 280 20 yards!. 0913 Continued closing convoy. Went to 150 ft, standard speed. 1008 Fired Tubes 8,9. Range 750 yards at AK KENZAN MARU. All stern torpedoes expended. 1008: Torpedo impact! 45 1008: Torpedo impact! 50 TORPEDO ATTACK NO.5 -------------------------- 1020 Fired tubes 1,2,3, range 900 yards at AK KENZAN MARU. 1020: All three torpedoes impacted target. 35 1021 Massive secondary explosion from target, target broke in half. AK KENZAN MARU SUNK! 1024 Aircraft spotted! Bearing 100 closing ! Ordered 400 ft! Sounded Collision. Rigged for depth charge. 1035 Convoy passed above. TORPEDO ATTACK NO.6 --------------------------- 1058 Periscope depth. Ship spotted bearing 005 1200 yards. Opened outer doors. Snap shot for down the throat shot on AK. 1100 Fired tubes 1,2, "down the throat". Two torpedo impacts on AK similar to KANAGA MARU 1110 Fired tubes 5,6, to finish off AK. 1111 Both torpedoes impacted target. 1115 AK similar to KANAGA MARU sunk. 1300 Secured GQ. Attempted to surface multiple times but aircraft remained in area. 1900 Surfaced January 14 ------------- Patrol in area. January 15 ------------- Overcast, heavy fog, rains. Winds 30 kts direction 228. Heavy seas. 1630 Storms cleared. Winds remained 25-30 kts direction 355. Heavy seas. January 16 ------------- Seas calmed considerably. Winds 12-15 kts direction 259. January 17 ------------- Patrol in area. Weather calm. January 18 ------------- 1314 SD contact 21000 yards, closing. (Aircraft Contact No.4) 1315 Dive 1900 Surface January 19 ------------- Patrol in area. January 20 ------------- 0913 SD contact 31000 yards, steady. (Aircraft Contact No.5) 2100 Received message from CTF-72 to deactivate magnetic features on all torpedoes, to use contact exploders only. Order given to torpedo room to disable magnetic features on remaining torpedoes. January 21 ------------- Patrol in area. January 22 ------------- Patrol in area. January 23 ------------- Patrol in area. January 24 ------------- TORPEDO ATTACK NO.7 --------------------------- 1609 SD contact 20000 yds closing. (Aircraft Contact No.6) Dive. 1800 Surface 1920 SJ Contacts bearing 356 28,355 yards.(Ship Contact No.3) 1921 Set course to intercept. 1935 Large Convoy. Nine ships, three escorts. Course 192 10 kts 2000 GENERAL QUARTERS-TORPEDO-SURFACE 2022 Spotted AO in middle column, designated target. 2030 Fired tubes 3,4,5,6. Range 3446 yds. All torpedoes expended. 2032 All torpedoes impacted. Target exploded in characteristic fashion of tanker loaded with fuel. CISCO came under heavy gun and machine gun fire from merchants and escorts. Turned away and avoided. Briefly illuminated by star shell and spotlight. 2036 CISCO reached surface speed of 22.5 knots, was opening range but two close shell splashes indicated enemy had found the range. 2036: Dive! 44 2037 Passed 80 feet. Rigged for silent running and depth charge. 2042 Pinging began. CISCO at 450 ft. 2100 Depth charge explosions, distant. Enemy failed to locate CISCO. January 25 ----------- 0200 Surface. 0210 Set course for Brisbane. January 26 ----------- En route Brisbane. Clouds Overcast with light fog. Heavy seas, winds 25 knots direction 142. 1211 SD contact 8500 yards closing fast. Dive! (Aircraft Contact No. 7) 1213 Explosions, not close. 1215 More explosions, not close. 2000 Surface. January 27 --------------- En route Brisbane. 1229 SD contact 10500 yards. Dive! (Aircraft Contact No.8) January 28-30 ------------- En route Brisbane. Uneventful. January 31 ----------- 0538 Approached Moreton Bay. 0900 Rendezvous with escort, proceeded to Brisbane. 1155 Docked at Brisbane, Australia. Terminated War Patrol. WEATHER _______ Weather in area was overall pleasant, with occasional squall and heavy seas, typical for the area. AIDES TO NAVIGATION ____________________ No navigational aides were encountered. CONTACTS _________ Ships ------ NO.1 DATE 1944/01/05 TIME 1423 LAT 1-36N LOG 148-56E BRG 010 RNG 26329 yds CRS 358 SPD 18 kts HOW SJ-Visual TYPE Aux Cruiser, DD REMARK TORPEDO ATTACK NO.1 NO.2 DATE 1944/01/12 TIME 2334 LAT 2-29N LOG 149-6E BRG 006 RNG 28355 yds CRS 179 SPD 10 kts HOW SJ-Visual TYPE AK,AO,AK,AK,AK,AK,AK,AK, Escort, Escort. REMARK TORPEDO ATTACK NO.2 TORPEDO ATTACK NO.3 TORPEDO ATTACK NO.4 TORPEDO ATTACK NO.5 TORPEDO ATTACK NO.6 NO.3 DATE 1944/01/24 TIME 1920 LAT 3-6N LOG 149-6E BRG 356 RNG 28355 yds CRS 197 SPD 10 kts HOW SJ-Visual TYPE AK,AK,AK,AK,AO,AK,AK,AK,SC,SC,SC REMARK TORPEDO ATTACK NO.7 Aircraft -------- No.1 DATE 1944/01/02 TIME 1127 LAT 6-2S LOG 152-57E BRG -- RNG 18100 yds ALT -- CRS -- SPD -- HOW SD only TYPE -- REMARK No.2 DATE 1944/01/03 TIME 1622 LAT 2-21S LOG 153-3E BRG 193 RNG 9000 yds ALT 700 ft CRS 315 SPD 150 kts HOW Visual only TYPE PETE REMARK No.3 DATE 1944/01/12 TIME 1352 LAT 2-40S LOG 149-40E BRG -- RNG 19000 yds ALT -- CRS -- SPD -- HOW SD only REMARK No.4 DATE 1944/01/18 TIME 1314 LAT 1-44S LOG 149-26E BRG -- RNG 21000 yards ALT -- CRS -- SPD -- HOW SD only REMARK No.5 DATE 1944/01/20 TIME 0913 LAT 2-24N LOG 148-50E BRG -- RNG 31000 yds ALT -- CRS -- SPD -- HOW SD only REMARK No.6 DATE 1944/01/24 TIME 0913 LAT 2-57N LOG 148-59E BRG -- RNG 20000 yds ALT -- CRS -- SPD -- HOW SD only REMARK No.7 DATE 1944/01/26 TIME 1211 LAT 3-0S LOG 154-2E BRG -- RNG 8500 yds ALT -- CRS -- SPD -- HOW SD only REMARK No.8 DATE 1944/01/27 TIME 1229 LAT 6-25S LOG 154-5E BRG -- RNG 10500 yds ALT -- CRS -- SPD -- HOW SD only REMARK ATTACKS ________ USS CISCO SS-290 TORPEDO ATTACK NO.1 WAR PATROL NO.3 DATE: January 6, 1944 TIME:1556 LAT: 1-43N LOG: 148-55E ---------------------------------------------------------------------- TYPE OF ATTACK Submerged-Periscope-Day SHIPS SUNK AIKOKU MARU Class Auxiliary Cruiser 14280 tons 1-43N 148-55E 1944/01/06 1653 Verification: Observed torpedo hit, vessel stop, engine noises stopped. Fire observed on stern. Large explosions later heard following by distinct noises of ship sinking from last bearing of target. Debris field located at sinking location following day. SHIPS PROBABLY SUNK None SHIPS DAMAGED None SHIPS PROBABLY DAMAGED None TARGET DATA (at firing) -------------------------------- CLASS AX NAME Aiokoku Maru Class TONS 14280 DRAFT 25.6 ft MAST 73.5 ft CRS 358 SPD 18 kts AOB 63 S RNG 3350 yds BRG 154 TRUE BRG 245 REMARK TORPEDO FIRE CONTROL DATA (at firing) ------------------------------------- TUBE NO. 7 TYPE MK 18-1 SERIAL NO.42100 EXPLODER MK 8 SERIAL NO.14100 GYRO 08 R COURSE 098 TRACK 83 S METHOD Single Bearing SPREAD Divergent INTERVAL 5 seconds POWER Normal DEPTH 10 ft POA MOT ACTUATION Contact ACTUAL ACTUATION -- HIT No POI-- ERRATIC Yes MALFUNCTION Yes REMARK Veered 20 degrees to starboard off designated bearing after firing. TUBE NO. 8 TYPE MK 18-1 SERIAL NO.42101 EXPLODER MK 8 SERIAL NO.14101 GYRO 08 R COURSE 098 TRACK 83 S METHOD Single Bearing SPREAD Divergent INTERVAL 5 seconds POWER Normal DEPTH 10 ft POA MOT ACTUATION Contact ACTUAL ACTUATION -- HIT No POI-- ERRATIC No MALFUNCTION No REMARK Missed TUBE NO. 9 TYPE MK 18-1 SERIAL NO.42102 EXPLODER MK 8 SERIAL NO.14102 GYRO 08 R COURSE 098 TRACK 83 S METHOD Single Bearing SPREAD Divergent INTERVAL 5 seconds POWER Normal DEPTH 10 ft POA MOT ACTUATION Contact ACTUAL ACTUATION Contact HIT Yes POI Stern ERRATIC No MALFUNCTION No REMARK Hit stern of target. Fires burning. Prop/steering disabled. TUBE NO. 10 TYPE MK 18-1 SERIAL NO.42103 EXPLODER MK 8 SERIAL NO.14103 GYRO 08 R COURSE 098 TRACK 83 S METHOD Single Bearing SPREAD Divergent INTERVAL 5 seconds POWER Normal DEPTH 10 ft POA MOT ACTUATION Contact ACTUAL ACTUATION -- HIT No POI -- ERRATIC No MALFUNCTION No REMARK Missed OWN SHIP DATA (at firing) -------------------------- DEPTH 64 ft COURSE 090 SPEED 3 kts ANGLE 0 up/down SEA STATE Calm REMARK __________________________________________________ ___________ USS CISCO SS-290 TORPEDO ATTACK NO.2 WAR PATROL NO.3 DATE: January 13, 1944 TIME: 0402 LAT: 1-36N LOG:148-45E ---------------------------------------------------------------------- TYPE OF ATTACK Submerged-Periscope-Night SHIPS SUNK AO TAKASANGO MARU 1116 TONS AK KANAGA MARU 4923 TONS Verification: Observed torpedoes impact both targets. Observed both targets sink. SHIPS PROBABLY SUNK None SHIPS DAMAGED None SHIPS PROBABLY DAMAGED None TARGET DATA (at firing) -------------------------------- CLASS AO NAME TAKASAGO MARU TONS 1116 DRAFT 15.1 ft MAST 64.6 ft CRS 179 SPD 10 kts AOB 70 S RNG 3600 yds BRG 068 TRUE BRG 336 REMARK Target No.1 Tubes 1,2,3,4 CLASS AK NAME KANAGA MARU TONS 4923 DRAFT 24.6 ft MAST 96.1 ft CRS 179 SPD 10 kts AOB 64 S RNG 2400 yds BRG 334 TRUE BRG 066 REMARK Target No.2 Tubes 4,5 TORPEDO FIRE CONTROL DATA (at firing) ------------------------------------- TUBE NO.1 TYPE MK 14-2A SERIAL NO. 40200 EXPLODER MK 6 SERIAL NO. 11250 GYRO 347 R COURSE 079 TRACK 81 S METHOD Single bearing SPREAD Divergent INTERVAL 5 seconds POWER High DEPTH 5 ft POA MOT ACTUATION Magnetic-Contact ACTUAL ACTUATION Magnetic-Contact HIT Yes POI MOT ERRATIC No MALFUNCTION No REMARK Target No.1 TUBE NO.2 TYPE MK 14-2A SERIAL NO. 40201 EXPLODER MK 6 SERIAL NO. 11251 GYRO 347 R COURSE 079 TRACK 81 S METHOD Single bearing SPREAD Divergent INTERVAL 5 seconds POWER High DEPTH 5 ft POA MOT ACTUATION Magnetic-Contact ACTUAL ACTUATION Magnetic-Contact HIT Yes POI MOT ERRATIC No MALFUNCTION No REMARK Target No.1 TUBE NO.3 TYPE MK 14-2A SERIAL NO. 40202 EXPLODER MK 6 SERIAL NO. 11252 GYRO 347 R COURSE 079 TRACK 81 S METHOD Single bearing SPREAD Divergent INTERVAL 5 seconds POWER High DEPTH 5 ft POA MOT ACTUATION Magnetic-Contact ACTUAL ACTUATION Magnetic-Contact HIT Yes POI Bow ERRATIC No MALFUNCTION No REMARK Target No.1 TUBE NO.4 TYPE MK 14-2A SERIAL NO. 40203 EXPLODER MK 6 SERIAL NO. 11253 GYRO 347 R COURSE 079 TRACK 81 S METHOD Single bearing SPREAD Divergent INTERVAL 5 seconds POWER High DEPTH 5 ft POA MOT ACTUATION Magnetic-Contact ACTUAL ACTUATION Magnetic-Contact HIT Yes POI Bow ERRATIC No MALFUNCTION No REMARK Target No.1 TUBE NO.5 TYPE MK 14-2A SERIAL NO. 40204 EXPLODER MK 6 SERIAL NO. 11254 GYRO 345 R COURSE 076 TRACK 74 S METHOD Single bearing SPREAD None INTERVAL 5 seconds POWER High DEPTH 10 ft POA MOT ACTUATION Magnetic-Contact ACTUAL ACTUATION Magnetic-Contact HIT Yes POI MOT ERRATIC No MALFUNCTION No REMARK Target No.2 TUBE NO.6 TYPE MK 14-2A SERIAL NO. 40204 EXPLODER MK 6 SERIAL NO. 11254 GYRO 345 R COURSE 076 TRACK 74 S METHOD Single bearing SPREAD None INTERVAL 5 seconds POWER High DEPTH 10 ft POA MOT ACTUATION Magnetic-Contact ACTUAL ACTUATION Magnetic-Contact HIT Yes POI MOT ERRATIC No MALFUNCTION No REMARK Target No.2 OWN SHIP DATA (at firing) -------------------------- DEPTH 64 ft COURSE 091 SPEED 2.5 kts ANGLE 1-down SEA STATE Calm REMARK Full moon __________________________________________________ __________ USS CISCO SS-290 TORPEDO ATTACK NO.3 WAR PATROL NO.3 DATE: January 13, 1944 TIME: 0415 LAT: 1-36N LOG:148-45E ---------------------------------------------------------------------- TYPE OF ATTACK Submerged-Periscope-Night SHIPS SUNK None SHIPS PROBABLY SUNK None SHIPS DAMAGED AK KENJO MARU 7627 TONS Verification: Observed two torpedoes hit target. SHIPS PROBABLY DAMAGED None TARGET DATA (at firing) -------------------------------- CLASS AK NAME KENJO MARU TONS 7527 DRAFT 24.6 ft MAST 111.5 ft CRS 190 SPD 5 kts AOB 89 S RNG 1300 YDS BRG 181 TRUE BRG 090 REMARK TORPEDO FIRE CONTROL DATA (at firing) ------------------------------------- TUBE NO.7 TYPE MK 18-1 SERIAL NO.42104 EXPLODER MK 8 SERIAL NO.14104 GYRO 11 R COURSE 280 TRACK 89 S METHOD Single bearing SPREAD None INTERVAL 5 seconds POWER Normal DEPTH 10 ft POA MOT ACTUATION Contact ACTUAL ACTUATION Contact HIT Yes POI MOT ERRATIC No MALFUNCTION No REMARK TUBE NO.10 TYPE MK 18-1 SERIAL NO.42105 EXPLODER MK 8 SERIAL NO.14105 GYRO 11 R COURSE 280 TRACK 89 S METHOD Single bearing SPREAD None INTERVAL 5 seconds POWER Normal DEPTH 10 ft POA MOT ACTUATION Contact ACTUAL ACTUATION Contact HIT Yes POI MOT ERRATIC No MALFUNCTION No REMARK OWN SHIP DATA (at firing) -------------------------- DEPTH 64 ft COURSE 272 SPEED 2.5 kts ANGLE 1-down SEA STATE Calm REMARK Full moon __________________________________________________ _______________________________________ USS CISCO SS-290 TORPEDO ATTACK NO.4 WAR PATROL NO.3 DATE: January 13,1944 TIME: 1008 LAT:1-02N LOG:148-46 ---------------------------------------------------------------------- TYPE OF ATTACK Submerged-Periscope-Day SHIPS SUNK None SHIPS PROBABLY SUNK None SHIPS DAMAGED AK KENZAN MARU 4252 TONS Verification: Observed two torpedo hits on target. SHIPS PROBABLY DAMAGED None TARGET DATA (at firing) -------------------------------- CLASS AK NAME KENZAN MARU TONS 4252 DRAFT 25.9 FT MAST 98.4 FT CRS 096 SPD 5 kts AOB 72 P RNG 750yds BRG 191 TRUE BRG 310 REMARK TORPEDO FIRE CONTROL DATA (at firing) ------------------------------------- TUBE NO. 8 TYPE MK 18-1 SERIAL NO.42106 EXPLODER MK 8 SERIAL NO.14106 GYRO 02 L COURSE 122 TRACK 095 METHOD Single Bearing SPREAD None INTERVAL 5 seconds POWER Normal DEPTH 10 ft POA MOT ACTUATION Contact ACTUAL ACTUATION Contact HIT Yes POI MOT ERRATIC No MALFUNCTION No REMARK TUBE NO. 9 TYPE MK 18-1 SERIAL NO.42107 EXPLODER MK 8 SERIAL NO.14107 GYRO 02 L COURSE 122 TRACK 095 METHOD Single Bearing SPREAD None INTERVAL 5 seconds POWER Normal DEPTH 10 ft POA MOT ACTUATION Contact ACTUAL ACTUATION Contact HIT Yes POI Bow ERRATIC No MALFUNCTION No REMARK OWN SHIP DATA (at firing) -------------------------- DEPTH 64 ft COURSE 355 SPEED 3 kts ANGLE 1-down SEA STATE Light REMARK __________________________________________________ ___________ USS CISCO SS-290 TORPEDO ATTACK NO.5 WAR PATROL NO.3 DATE: January 13,1944 TIME: 1020 LAT:1-02N LOG:148-46 ---------------------------------------------------------------------- TYPE OF ATTACK Submerged-Periscope-Day SHIPS SUNK AK KENZAN MARU 4252 TONS Verification: Observed three additional torpedo hits (plus two in Attack No.4). Observed large explosion, vessel broke in two and sunk. SHIPS PROBABLY SUNK None SHIPS DAMAGED AK KENZAN MARU 4252 TONS Verification: Observed two torpedo hits on target. SHIPS PROBABLY DAMAGED None TARGET DATA (at firing) -------------------------------- CLASS AK NAME KENZAN MARU TONS 4252 DRAFT 25.9 FT MAST 98.4 FT CRS 100 SPD 5 kts AOB 90 S RNG 900 yds BRG 000 TRUE BRG 355 REMARK AK damaged in Torpedo Attack No. 4) TORPEDO FIRE CONTROL DATA (at firing) ------------------------------------- TUBE NO. 1 TYPE MK 14-2A SERIAL NO. 40205 EXPLODER MK 6 SERIAL NO. 11255 GYRO 0 COURSE 350 TRACK 25 P METHOD Single Bearing SPREAD None INTERVAL 5 seconds POWER Normal DEPTH 10 ft POA MOT ACTUATION Contact-Magnetic ACTUAL ACTUATION Contact-Magnetic HIT Yes POI MOT ERRATIC No MALFUNCTION No REMARK TUBE NO. 2 TYPE MK 14-2A SERIAL NO. 40206 EXPLODER MK 6 SERIAL NO. 11256 GYRO 0 COURSE 350 TRACK 25 P METHOD Single Bearing SPREAD None INTERVAL 5 seconds POWER Normal DEPTH 10 ft POA MOT ACTUATION Contact-Magnetic ACTUAL ACTUATION Contact-Magnetic HIT Yes POI MOT ERRATIC No MALFUNCTION No REMARK TUBE NO.3 TYPE MK 14-2A SERIAL NO. 40207 EXPLODER MK 6 SERIAL NO. 11257 GYRO 0 COURSE 350 TRACK 25 P METHOD Single Bearing SPREAD None INTERVAL 5 seconds POWER Normal DEPTH 10 ft POA MOT ACTUATION Contact-Magnetic ACTUAL ACTUATION Contact-Magnetic HIT Yes POI MOT ERRATIC No MALFUNCTION No REMARK OWN SHIP DATA (at firing) -------------------------- DEPTH 64 ft COURSE 010 SPEED 3 kts ANGLE 1-down SEA STATE Light REMARK __________________________________________________ _______________________________________ USS CISCO SS-290 TORPEDO ATTACK NO.6 WAR PATROL NO.3 DATE: January 13,1944 TIME: 1100 LAT:1-03N LOG:148-47 ---------------------------------------------------------------------- TYPE OF ATTACK Submerged-Periscope-Day SHIPS SUNK AK similar to KANAGA MARU 4923 TONS Verification: Observed three additional torpedo hits. Observed vessel sink, crew abandoned ship. SHIPS PROBABLY SUNK None SHIPS DAMAGED None SHIPS PROBABLY DAMAGED None TARGET DATA (at firing) -------------------------------- CLASS AK NAME KANAGA MARU* TONS 4252 DRAFT 24.6 FT MAST 96.1 FT CRS 185 SPD 6 kts AOB 0 RNG 650 yds BRG 000 TRUE BRG 300 REMARK Similar to ak KANAGA MARU TORPEDO FIRE CONTROL DATA (at firing) ------------------------------------- TUBE NO. 1 TYPE MK 14-2A SERIAL NO. 40209 EXPLODER MK 6 SERIAL NO. 11259 GYRO 0 COURSE 320 TRACK 0 METHOD Single Bearing SPREAD None INTERVAL 5 seconds POWER Normal DEPTH 10 ft POA Bow ACTUATION Contact-Magnetic ACTUAL ACTUATION Contact-Magnetic HIT Yes POI Bow ERRATIC No MALFUNCTION No REMARK TUBE NO. 2 TYPE MK 14-2A SERIAL NO. 40208 EXPLODER MK 6 SERIAL NO. 11258 GYRO 0 COURSE 320 TRACK 0 METHOD Single Bearing SPREAD None INTERVAL 5 seconds POWER Normal DEPTH 10 ft POA Bow ACTUATION Contact-Magnetic ACTUAL ACTUATION Contact-Magnetic HIT Yes POI Bow ERRATIC No MALFUNCTION No REMARK TUBE NO.3 TYPE MK 14-2A SERIAL NO. 40210 EXPLODER MK 6 SERIAL NO. 11260 GYRO 0 COURSE 310 TRACK 10 P METHOD Single Bearing SPREAD None INTERVAL 5 seconds POWER Normal DEPTH 5 ft POA MOT ACTUATION Contact-Magnetic ACTUAL ACTUATION Contact-Magnetic HIT Yes POI MOT ERRATIC No MALFUNCTION No REMARK TUBE NO.4 TYPE MK 14-2A SERIAL NO. 40211 EXPLODER MK 6 SERIAL NO. 11261 GYRO 0 COURSE 310 TRACK 10 P METHOD Single Bearing SPREAD None INTERVAL 5 seconds POWER Normal DEPTH 5 ft POA MOT ACTUATION Contact-Magnetic ACTUAL ACTUATION Contact-Magnetic HIT Yes POI MOT ERRATIC No MALFUNCTION No REMARK OWN SHIP DATA (at firing) -------------------------- DEPTH 64 ft COURSE 340 SPEED 3 kts ANGLE 1-down SEA STATE Light REMARK __________________________________________________ ___________ USS CISCO SS-290 TORPEDO ATTACK NO.7 WAR PATROL NO.3 DATE: January 24, 1944 TIME: 2030 LAT:3-03N LOG: 148-47E ---------------------------------------------------------------------- TYPE OF ATTACK Night-Surface-Torpedo SHIPS SUNK AO OGURASAN MARU 5069 tons. Verification: Observed four torpedoes hit. Observed massive explosion and fires. Observing vessel sinking. SHIPS PROBABLY SUNK None SHIPS DAMAGED None SHIPS PROBABLY DAMAGED None TARGET DATA (at firing) -------------------------------- CLASS AO NAME OGURASAN MARU TONS 5069 DRAFT 25.9 ft MAST 85.6 ft CRS 192 SPD 10 kts AOB 70 S RNG 3466 yds BRG 349 TRUE BRG 078 REMARK TORPEDO FIRE CONTROL DATA (at firing) ------------------------------------- TUBE NO. 3 TYPE MK 14-2A SERIAL NO. 40214 EXPLODER MK 6 SERIAL NO. 11265 GYRO 0 COURSE 090 TRACK 80 S METHOD Single Bearing SPREAD None INTERVAL 5 seconds POWER Normal DEPTH 10 FT POA mot ACTUATION Contact ACTUAL ACTUATION Contact HIT Yes POI MOT ERRATIC No MALFUNCTION No REMARK TUBE NO. 4 TYPE MK 14-2A SERIAL NO. 40215 EXPLODER MK 6 SERIAL NO. 11266 GYRO 0 COURSE 090 TRACK 80 S METHOD Single Bearing SPREAD None INTERVAL 5 seconds POWER HIGH DEPTH 10 FT POA MOT ACTUATION Contact ACTUAL ACTUATION Contact HIT Yes POI MOT ERRATIC No MALFUNCTION No REMARK TUBE NO. 5 TYPE MK 14-2A SERIAL NO. 40217 EXPLODER MK 6 SERIAL NO. 11267 GYRO 0 COURSE 090 TRACK 80 S METHOD Single Bearing SPREAD None INTERVAL 5 seconds POWER HIGH DEPTH 10 FT POA MOT ACTUATION Contact ACTUAL ACTUATION Contact HIT Yes POI MOT ERRATIC No MALFUNCTION No REMARK TUBE NO. 6 TYPE MK 14-2A SERIAL NO. 40217 EXPLODER MK 6 SERIAL NO. 11268 GYRO 0 COURSE 090 TRACK 80 S METHOD Single Bearing SPREAD None INTERVAL 5 seconds POWER HIGH DEPTH 10 FT POA MOT ACTUATION Contact ACTUAL ACTUATION Contact HIT Yes POI MOT ERRATIC No MALFUNCTION No REMARK OWN SHIP DATA (at firing) -------------------------- DEPTH Surface COURSE 080 SPEED 3 kts ANGLE 0-up/down SEA STATE Calm REMARK No moon, no fog. MINES ______ No mines were encountered. THERMAL LAYERS ________________ Thermal layers were detected at 144, 150, and 190 ft. ANTI-SUBMARINE COUNTERMEASURES AND EVASION ___________________________________________ Enemy ASW efforts were typical. Although a more powerful depth charge did appear to be used in both depth charge attacks. Evasion was normal with frequent changes in depth, course, and speed. During evasion CISCO reached 650 ft. SOUND GEAR AND SOUND CONDITIONS ________________________________ Sound gear function was normal with long range detection in excess of 15,000 yards and precise tracking possible in most conditions at 10,000 yards. Sound conditions in are were generally favorable. MAJOR DAMAGE AND DEFECTS __________________________ No major defects or damage occurred on this patrol. RADAR ______ SJ Ths new SJ-1 Surface Search Radar performed very well with a average detection range of 20,000 yards. The PPI scope provides major tactical advantage, especially during night surface attacks. SD SD Radar function was normal with typical detection range at 20000 yards. RADIO ______ Radio function was satisfactory. TORPEDO PERFORMANCE ____________________ Performance of the MK 14-2A torpedo was excellent throughout the patrol. No malfunctions occurred. Magnetic features were disabled on 20 January per orders received from CTF-72. MK 18 electric torpedo performance was overall excellent. One torpedo suffered a possible gyro failure and veered off proper course. MK 18 accounted for one auxiliary cruiser sunk and two AK damaged. PERSONNEL __________ Crew performance was excellent during this patrol. Two Officers Qualified in Submarines during this patrol. The entire wardroom are now sporting Gold Dolphins. Twelve men qualified in submarines during this patrol. Six men advanced in rating. Crew Stats ___________ Officers: 7 Chief Petty Officers: 8 Men: 64 Average age: 22 HEALTH AND HABITABILITY _________________________ Health and Habitability were excellent throughout the patrol. MILES STEAMED-FUEL CONSUMED ____________________________ MILES GALLONS Milne Bay to Area 965 10250 In Area 6500 65100 Area to Brisbane 2115 32200 DURATION _________ DAYS Milne Bay to Area 4 In Area 20 Area to Brisbane 7 Total 31 FACTORS IN ENDURANCE ______________________ Torpedoes: 0 Fuel: 39250 gallons Provisions: 48 days REMARKS _________ A productive and busy patrol with six ships sunk for35,567 tons, in a area that since Fall of 1942 has been a "target rich" environment and remains so. With the sinking of two fuel laden southbound tankers, no doubt en route to Rabaul to provide much needed aviation gasoline for aircraft based there, as our aerial offensive against the area continues. Depriving aircraft there of two tankers worth of fuel, sure made a "dent"in their operations. Expectations of the new MK 18 electric torpedo were overall me, given a MK 18 was responsible. or the sinking of a 14280 ton Auxiliary Cruiser on this patrol. Obviously, the lack of a visible wake provides a advantage. However, the relatively slow speed and smaller warhead hampered overall effectiveness against other targets, as one large AK took two and sailed on, while another hit with two MK 18, required follow up shots with MK 14 to ensure her sinking. Ineffectiveness of enemy ASW on this patrol was quite surprising. While have seemed to deploy a heavier and more effective depth charge, the lack of vigor in their counterattacks was surprising, but appreciated. J.W. Coe |
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