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SUBSIM: The Web's #1 resource for all submarine & naval simulations since 1997
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SUBSIM: The Web's #1 resource for all submarine & naval simulations since 1997 |
03-05-23, 03:14 AM
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#346 | |
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The Old Man
 Join Date: Mar 2010
Location: Frankfurt, Germany
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Kiel Kriegsmarinewerft
Quote:
+++++++ Friday, 5 March 1943 - Kiel 1506 - Arrival at Kiel Kriegsmarinewerft - Degausing (The unfinished) Aircraft Carrier Graf Zeppelin and Heavy Cruiser Gneisenau (historically, was in Gotenhafen at the time) are in Kiel. +++++++
B.d.U. HQ moves from Paris to Berlin, Hotel am Steinplatz (until 12/43). British bombers attack the Krupp works at Essen, Germany; This is the Allies' first attack on this industrial region, which started what the Allies called the Battle of the Ruhr. This attack also sees the first successful use of "Oboe", an aerial blind bombing targeting system. Auxiliary Aircraft Carrier USS Bogue departs Argentia, Newfoundland, bound for mid-Atlantic rendezvous with eastbound Convoy HX.228. Tirpitz completes post-refitting trials in Drontheim. U 333 (Oblt. Werner Schwaff; in deputize for "Ali" Cremer in hospital) was attacked by enemy aircraft at night without previous radar in BF 5897. Slight damage. Aircraft was shot down in flames. U 445 (Oblt. Heinz-Konrad Fenn) sighted outward bound convoy at 1215 in CG 9577. Contact was lost after hydrophone activity accompanied by bombs and depth charges lasting 12 hours. Very heavy air and surface reconnaissance in the area off Gibraltar. Our own aircraft sighted Gibraltar convoy at 1830 in CG 4611, course 60°, speed 7.5 knots. U 183 (Korvkpt. Heinrich Schäfer) reported Swedish steamer showing lights on a course of 70° in DM 7527. In spite of clear orders the boat requested permission to attack. It was accordingly corrected. The ship was later confirmed to be an Argentinean vessel. Situation Cape Town: U 509 (Kptlt. Werner Witte) confirmed westbound traffic during the day and on moonlit nights in GR 6720. Slight possibilities for action, owing to air and land observation. Triple and single miss on steamers of 7,000 and 2,000 GRT. Subsequent passage to KY 4350. U 516 (KrvKpt. Gerhard Wiebe): Nothing sighted in KZ 43 and 19 or from KZ 1781 to 1591 during a stay of several days. A modern passenger steamer, protected by corvettes, course 240° was sunk in KZ 1791 at 27.2. Size 10,000 GRT. Aerial activity up to 100 sea miles from land. Pieces of wreckage were rammed during patrol in KZ 1690 and KZ 2470. Withdrawn at the moment owing to oil tracks. As more boats are to operate simultaneously in the area off the American coast, U 172 (Kptlt. Carl Emmermann), U 515 (Kptlt. Werner Henke) and U 513 (KrvKpt. Rolf Rüggeberg) already in CD are to be retained and distributed in the following order to the temporary ops. area CD 20, CD 30 and CD 40. As soon as the boats, also intended for this, arrive further movement is to take place. U 130 (KrvKpt. Ernst Kals) and U 159 (Kptlt. Helmut Friedrich Witte) are to make for CA 50 also U 106 (Kptlt. Hermann Rasch; ex Oesten) is to replenish supplies from "Milkcow" U 461 (Kptlt. Wolf-Harro Stiebler). 6 boats, therefore, are disposed for this operation. U 521 (Kptlt. Klaus Heinrich Bargsten) is also to take on supplies from U 461 and proceed to the east to reinforce the Group "Tümmler". U 461 has given U 106, 180 cubic meters of fuel and U 521, 102 cubic meters. The tanker is empty and is on the return passage. U 648 (Ltnt.z.S.d.R. Peter-Arthur Stahl) undergoes Final Repairs at Blohm & Voss shipyard Hamburg. +++++++ KorvKpt.& Cmdr. U 115
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03-06-23, 02:57 AM
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#347 | |
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The Old Man
Join Date: Mar 2010
Location: Frankfurt, Germany
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Kiel Kriegsmarinewerft
Quote:
+++++++ U 115 - KTB - First War Patrol (17th war patrol overall) Saturday, 6 March 1943 - Kiel Kriegsmarinewerft Final Adjustments and Pre-War Patrol Preparation: - Loading of Fuel: 441t => 510cbm (at 865kg/m³) - 95 on gauge => 100%. - Trimming trials in Kiel harbor. Daily Op.-Briefing: A) 1) The systematic evaluation of the English U-boat situation for the month of January and the beginning of February is reassuring, in view of the strong suspicion that the enemy had broken down our codes or otherwise obtained exceptional knowledge of our operations. (compare the English estimates of U-boat positions, confirmation of the facts accessible to the English, wireless bearings, sightings, U -boat attacks, a/s radar, also information obtained after the return of a number of U-boats.) Except in the case of 2 - 3 unexplained incidents, English information from the facts accessible to him of U-boat positions, and plots of the boats, can throughout be traced to an explainable combination of facts. The most important revelation - confirmed almost without a doubt - was, that the enemy was able, with the help of a/c radar, to intercept U-boat dispositions with great accuracy - adequate for the successful evasive action of his convoys. As always, our countermeasures limp several weeks behind this kind of new enemy practice because: a) His evasive measures are obvious, only after constant use, partly after receipt of English wireless messages (Special Radio Intelligence messages) not solved for weeks afterwards. b) Reports of confirmed wireless location of U-boat dispositions, are rarely received by W/T, their use is not apparent until the operational survey and Commander's oral report. c) The technical possibilities of "ASV" location (simultaneous confirmation of several targets at long range and thereby the simultaneous interception of several boats in one disposition) was still unknown. A) 2) The fact perfectly corroborated by the increasing appearance of the additional word "radio located" in English U-boat situation (reports) of confirmation of U-boat dispositions by a/c radio location, meant an uncomfortable complication of the method used up to now, of intercepting convoys by patrol lines. As, in many cases, the inadequate number of U-boats in the patrol channels cannot be dispensed with. a) The boats are ordered to submerge for about 30 minutes on confirmation of a/c radar. (Stipulation for the effective execution of this measure is the presence of a constantly used Fu.M.B. in good working order. The Fu.M.B. aerials at present in use in the ops. areas are however not practicable in all weather conditions. An alteration will not be made until the beginning of March, the time of the equipping of boats with fixed Fu.M.B. cable and round dipole.) b) Avoid all unnecessary waiting in patrol lines before the presumed convoy passage time. (Disposition of the groups: "Neptun", "Ritter", "Burggraf", "Neuland"). These groups were to proceed on a westerly to southwesterly course on the convoy routes as far as the area of Newfoundland Bank "Harken". The passage speed was for the most part very small in the bad weather conditions generally prevailing; the disposition could almost be considered stationary in view of the long range of the "ASV" apparatus and the high speed and radius of action of English a/c. Up to now no better method has been tried. All other dispositions, i.e. the indiscriminate, unsystematic spreading out of boats in a certain area, ("castor sugar") have the disadvantage of too large spaces between the individual boats. After the non-interception of a convoy by such a disposition there is always the riddle what's to be done. The required certainty is lacking in a clear lineal disposition in any case up to a certain point (adverse weather conditions, periods of fog excepted), that the convoy has not sailed through the disposition area, that then, an alteration of the area and method is necessary. U 648 (Ltnt.z.S.d.R. Peter-Arthur Stahl) undergoes Final Repairs at Blohm & Voss shipyard Hamburg. KorvKpt.& Cmdr. U 115
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03-07-23, 02:57 AM
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#348 | |
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The Old Man
Join Date: Mar 2010
Location: Frankfurt, Germany
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Kiel Kriegsmarinewerft
Quote:
+++++++ U 115 - KTB - First War Patrol (17th war patrol overall) Sunday, 7 March 1943 - Kiel Kriegsmarinewerft Final Adjustments and Pre-War Patrol Preparation: - Testing of Navigational and Radio Equipment. - Loading of Provisions, Ammunitions and Torpedoes: Ari and A/A ammunition: - 10,5cm-SK-C/32: 150 x SpG; 80 x PbG; 20 x LkG - 3.7cm-SK-C/30: 2550 x PbG - Twin-M.G.-2cm-C/30: 5280 x SpG (2 x 2640); 2720 x PbG (2 x 1360) Torpedoes: - Tubes I-IV & VI: T-3 (G7e), Pi-2/Pi39H (MZ/AZ) - Tube V: T-4 "Falke" Pi-2/Pi39H (MZ/AZ) - Bow above floor plates: 2 x T-3 (G7e), Pi-2/Pi39H (MZ/AZ) - Bow under floor plates: 4 x T-1/G7a FAT (AtoFat), Pi-1/G7H/K-a (AZ only) - Aft under floor plate: 3 x T-1/G7a FAT (AtoFat), Pi-1/G7H/K-a (AZ only) - Upper deck containers: 10 (8 fwd, 2 aft) x T-1/G7a (Ato), Pi-1/G7H/K-a (AZ only) Daily Op.-Briefing: B) 1) Warfare against the African supplies from North America in the area north and south of the Azores has led to failure. Neither a U.G.S. or G.U.S. convoy has been intercepted by means of a patrol or reconnaissance channels ("Rochen, Robbe"). The enemy's possibility of taking evasive action north or south of the Great Circle are very great - owing to the great length of the entire route without any significant extension of the convoy route. B) 2) The tricky situation of the forces defending the bridgehead Tunis, forces action against African supply lines. As, for one thing, the attacking of the convoys in the area of the Gibraltar lines is unpropitious owing to strong defence, for another, as described in 1), the interception of convoys halfway is pointless in view of the size of the area, the following is the remaining possibility: Deployment of U-boats off the North American departure ports. Interception here and pursuit to open sea. It must be ascertained in this connection: a) The aerial defences off the coast is apparently very strong, disposition must therefore be stationary. b) Facts of ports of departure and times of leaving are unpredictable therefore a certain number of boats are necessary c) Defences, taken as a whole, mean a withdrawal to outside the coastal area during the full moon period. Consideration of these facts leads to the demand for an adequate number of boats, some of which would act as reconnaissance units stationed directly in front of the harbor, the others further out to act as "pick-up" groups able to operate on the reconnaissance groups reports. Owing to the length of the approach route, only a small percentage of U-boats (at the moment type IXc) come into the question. The following boats originally intended for deployment in the Cape Town area were distributed for this: U 172, U 515, U 513, also U 167, U 130, U 106, U 159. U 648 (Ltnt.z.S.d.R. Peter-Arthur Stahl) undergoes Final Repairs at Blohm & Voss shipyard Hamburg. KorvKpt.& Cmdr. U 115
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03-08-23, 03:28 AM
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#349 | |
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The Old Man
Join Date: Mar 2010
Location: Frankfurt, Germany
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Kiel Kriegsmarinewerft
Quote:
+++++++ U 115 - KTB - First War Patrol (17th war patrol overall) Monday, 8 March 1943 - Kiel Kriegsmarinewerft Final Adjustments and Pre-War Patrol Preparation: - Testing of Short Range Radar FMG 41G (gU) FuMO 29 Seetakt equipment. - Loading of Provisions, Ammunitions and Torpedoes: Ari and A/A ammunition: - 10,5cm-SK-C/32: 150 x SpG; 80 x PbG; 20 x LkG - 3.7cm-SK-C/30: 2550 x PbG - Twin-M.G.-2cm-C/30: 5280 x SpG (2 x 2640); 2720 x PbG (2 x 1360) Torpedoes: - Tubes I-IV & VI: T-3 (G7e), Pi-2/Pi39H (MZ/AZ) - Tube V: T-4 "Falke" Pi-2/Pi39H (MZ/AZ) - Bow above floor plates: 2 x T-3 (G7e), Pi-2/Pi39H (MZ/AZ) - Bow under floor plates: 4 x T-1/G7a FAT (AtoFat), Pi-1/G7H/K-a (AZ only) - Aft under floor plates: 3 x T-1/G7a FAT (AtoFat), Pi-1/G7H/K-a (AZ only) - Upper deck containers: 10 (8 fwd, 2 aft) x T-1/G7a (Ato), Pi-1/G7H/K-a (AZ only) Daily Op.-Briefing: 2) The reports from U 333 (Oblt. Werner Schwaff; in deputize for "Ali" Cremer, in hospital) of 5.3 and U 156 (KrvKpt. Werner Hartenstein) of 6.3 confirm the conjecture of several weeks that the enemy was using new methods of locating which could not be picked up by Fu.M.B. equipment. Reports from both boats at sea and from Commander's upon return from patrol revealed occasionally at first, then more often, that they had been attacked by a/c at night (mostly in the Biscay and Trinidad areas) without previous appearance of an a/c searchlight in the vicinity, or radar activity being confirmed. The following new methods of locating appear possible according to observations and deliberations. 2) A) The enemy is working with either very high or very low, and therefore scarcely a completely inaudible frequency impulse. This possibility is strengthened by the observations of U 214 (VIID; Kptlt. Günther Reeder) from the Caribbean Sea. The P.O. Telegraphist Bruster, on confirming scarcely audible impulse frequencies, installed the magic eye of the wireless receiver Ela 10.12 in the Metox receiver in order to make visible the inaudible impulse frequencies. In this way apparently, a location was once confirmed. Magic eyes are to be installed in the receivers of all outward bound boats, after P.O. Tel. Bruster's report to the S.O. Naval Signals and Communications Equipment Command. Apart from this, on 6.3 a number of oscillographs were sent by courier to the western area to be added to the Metox receiver in order to ascertain as soon as possible whether the enemy is in fact, working with inaudible impulse frequencies. Boats at sea have received instructions to send observations if necessary. 2) B) The enemy is working on carrier frequencies outside the frequency range of the present Fu.M.B. receivers. The shooting down, over Holland of an enemy a/c apparently carrying an apparatus with a frequency of 5.7 centimeters is the only indication at present of this possibility. It is possible that the enemy is attempting to escape from the frequency range of our Fu.M.B. which indicates the knowledge of this and the introduction of countermeasures. 2) C) The enemy uses his search and locating apparatus for a very short space of time (2 to 3 secs). This method is a development and perfecting of the economical use of locating already observed. It would be very difficulty and almost only occasionally possible for an Fu.M.B. observer to confirm a location with the Fu.M.B. equipment at present in use. Theoretically it appears desirable to counter all these three possibilities in the following way: Use of an aperiodic, untuned receiver with optical sight indicator, in which every location will be immediately seen, whether carrier or impulse frequency. It remains to be seen whether this possibility is technically practicable. Further information in this connection is to be requested directly from the appropriate departments. U 648 (Ltnt.z.S.d.R. Peter-Arthur Stahl) undergoes Final Repairs at Blohm & Voss shipyard Hamburg. KorvKpt.& Cmdr. U 115
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03-09-23, 02:09 AM
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#350 | |
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The Old Man
Join Date: Mar 2010
Location: Frankfurt, Germany
Posts: 1,580
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Kiel Kriegsmarinewerft
Quote:
+++++++ U 115 - KTB - First War Patrol (17th war patrol overall) Tuesday, 9 March 1943 - Kiel Kriegsmarinewerft Final Adjustments and Pre-War Patrol Preparation: - Installation and testing of the Magic Eye (of the Wireless Receiver Ela 10.12) in the FuMB-1/Metox600A. - Loading of Provisions, Ammunitions and Torpedoes: Ari and A/A ammunition: - 10,5cm-SK-C/32: 150 x SpG; 80 x PbG; 20 x LkG - 3.7cm-SK-C/30: 2550 x PbG - Twin-M.G.-2cm-C/30: 5280 x SpG (2 x 2640); 2720 x PbG (2 x 1360) Torpedoes: - Tubes I-IV & VI: T-3 (G7e), Pi-2/Pi39H (MZ/AZ) - Tube V: T-4 "Falke" Pi-2/Pi39H (MZ/AZ) - Bow above floor plates: 2 x T-3 (G7e), Pi-2/Pi39H (MZ/AZ) - Bow under floor plates: 4 x T-1/G7a FAT (AtoFat), Pi-1/G7H/K-a (AZ only) - Aft under floor plates: 3 x T-1/G7a FAT (AtoFat), Pi-1/G7H/K-a (AZ only) - Upper deck containers: 10 (8 fwd, 2 aft) x T-1/G7a (Ato), Pi-1/G7H/K-a (AZ only) Daily Op.-Briefing: The Naval C.-in-C. decided on 20.2.43, that after the transference of the boats U 377, 592, 403, 405, 209, 376 and 334 from the North Sea to the Atlantic - the amount of North Sea boats will be supplemented from the boats from home - U 644, 467, 639, 711, 269, 339, 304, 636, 646 - 23 boats. RSTErwin Rommel departed North Africa on account of health reasons. U 648 (Ltnt.z.S.d.R. Peter-Arthur Stahl) undergoes Final Repairs at Blohm & Voss shipyard Hamburg. KorvKpt.& Cmdr. U 115
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03-10-23, 02:46 AM
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#351 | |
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The Old Man
Join Date: Mar 2010
Location: Frankfurt, Germany
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Kiel Kriegsmarinewerft
Quote:
+++++++ U 115 - KTB - First War Patrol (17th war patrol overall) Wednesday, 10 March 1943 - Kiel Kriegsmarinewerft Pre-War Patrol Preparation: - Completed loading of Provisions, Ammunitions and Torpedoes: Ari and A/A ammunition: - 10,5cm-SK-C/32: 150 x SpG; 80 x PbG; 20 x LkG - 3.7cm-SK-C/30: 2550 x PbG - Twin-M.G.-2cm-C/30: 5280 x SpG (2 x 2640); 2720 x PbG (2 x 1360) Torpedoes: - Tubes I-IV & VI: T-3 (G7e), Pi-2/Pi39H (MZ/AZ) - Tube V: T-4 "Falke" Pi-2/Pi39H (MZ/AZ) - Bow above floor plates: 2 x T-3 (G7e), Pi-2/Pi39H (MZ/AZ) - Bow under floor plates: 4 x T-1/G7a FAT (AtoFat), Pi-1/G7H/K-a (AZ only) - Aft under floor plates: 3 x T-1/G7a FAT (AtoFat), Pi-1/G7H/K-a (AZ only) - Upper deck containers: 10 (8 fwd, 2 aft) x T-1/G7a (Ato), Pi-1/G7H/K-a (AZ only) - Final Adjustments and Repairs. Basin Trials. Pre-War Patrol Briefing and new B.d.U.-Standing Orders: 1) Since 11.42, Deckgun also as Flak 2) Since End1942, A/C with Rockets RP-3 3) As of 8 Jan.1943, B.d.U.-Standing Order No. 307: Inspection/Replacement of Pistol G7H after Wabo Attack. 4) As of 8 Jan.1943, B.d.U.-Standing Order No. 308: Closing of Torpedo Tubes during Deep Dive. 5) As of 30 Jan.1943, B.d.U.-Standing Order No. 510: Test Run of Main Diesels at AK for 30min., every 4 days. 6) As of March 1943: A) Forward Projectile "Hedgehog": Range/Distance 230-260m; Effective Range/Radius 30m; Sinking Speed 13m/s. B) Mark24 Mine "Fido" (Homing) Torpedo: Depth 15-45m; Speed 12 kn for 10 min; Range 3700m. Axis forces in Tunisia fall back to the Mareth Line. U 648 (Ltnt.z.S.d.R. Peter-Arthur Stahl) undergoes Final Repairs at Blohm & Voss shipyard Hamburg. RSTKorvKpt.& Cmdr. U 115
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03-11-23, 04:19 AM
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#352 | |
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The Old Man
Join Date: Mar 2010
Location: Frankfurt, Germany
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Leaving Kiel for the 1st War Patrol with U 115
Quote:
+++++++ U 115 - KTB - First War Patrol (17th war patrol overall) Thursday, 11 March 1943 - Kiel Taking on of fresh food and water supply. Received transit and Op.-Orders: - Proceed to Kristiansand under escort for fuel and lubrication oil, and fresh water supply. - Further Op.-Orders will be given during transit. - Tirpitz and Scharnhorst will sail today from Drontheim, escorted by Torpedo Boats Jaguar and Greif, to our Navy base in Bogen Bay, Norway. Pre-War Patrol Preparation completed (sailed without Focke Achgelis Fa 330 Bachstelze). Cmdr.: The day we all have been waiting for has finally come: 5 months after commissioning of our new boat, we get to give proof of what we have learned in the many weeks of rigorous training and exercises, testing - and often times exceeding - the limits of our boat and us. May good luck and fortune be with us and accompany us until after a glorious journey, we are allowed to enter the safe haven again. 1510 - N3/2, clear, visibility 7sm, >1000mb - Casting off Tirpitz Mole. Departed Kiel for escort meeting point. 1530 - Taking on of escort (Class 34 Destroyer). 1541 - Cleared barrage Friedrichsort. 1550 - Transit in convoy (with U-191; IXC/40; Kptlt. Helmut Fiehn) for Kristiansand. Entering transit path, which is patrolled by a Class 36 Destroyer, and a Dornier Do-24 and a Arado AR196. Today, Feldmarschall Erwin Rommel received Diamonds to his Knight's Cross. RST
KorvKpt.& Cmdr. U 115
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KSDII-Ace/GWX 3.0 Gold/CCoM 10.0 + h.sie-patch; Windows 7 (64-bit); NVIDIA GeForce GTX650 (310.90) Last edited by Kapitän; 03-11-23 at 04:35 AM. |
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03-12-23, 03:09 AM
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#353 | |
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The Old Man
Join Date: Mar 2010
Location: Frankfurt, Germany
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Transit to Kristiansand
Quote:
+++++++ U 115 - KTB - First War Patrol (17th war patrol overall) Friday, 12 March 1943 - Great Belt/Skagerrak During transit, received daily intel and Op.-Updates: 1) RAF bombers attack the Krupp steel plants in Essen. 2) Heavy fighting at Kharkov; Our troops evacuate Vyazma. 3) British destroyer HMS Lighting (G55) of Force Q is sunk in the Mediterranean by twelve German torpedo bombers and German motor torpedo boat S-158. 4) Tirpitz arrives at Bogen/Narvik. 5) In order to facilitate the transit of closed areas within Route "A" to uboats, the areas will be divided into the following sections: A) Section "A" extends from W. France to 30° W. B) Section "B" extends from 30° W. to the south to 30° N. C) Section "C" extends from 30° N. to 15° N. D) Section "D" extends from 15° N. to 05° S. With the immediate closing of section "B" until further notice, only section "A" is open for attacks on isolated vessels. 1200 - Days Run: 311.5 nm ↗ (20h 50') - since Kiel 504cbm (6cbm in 20h); Weather and Sea unchanged since Kiel. Bottoming boat outside of Kristiansand, due to darkness rapidly setting-in. RST
KorvKpt.& Cmdr. U 115
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03-13-23, 02:50 AM
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#354 | |
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The Old Man
Join Date: Mar 2010
Location: Frankfurt, Germany
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Kristiansand-Maviken
Quote:
+++++++ U 115 - KTB - First War Patrol (17th war patrol overall) Saturday, 13 March 1943 - Kristiansand Raising boat from sea bottom. Surfaced and approaching Kristiansand. 0849 - A Class 36A Destroyer is protecting the harbor entry. Entered Kristiansand via the southern approach path. Many fishing trawlers in Kristiansand roadsted; Manning flak guns. 0945 - Made fast Kristiansand - Maviken. (Fuel and lubrication oil, and fresh water supply). 1200 - Days Run: 176.2 nm 2303 - F.T. from B.d.U.: O.K.W.-Report: A Chinese counter attack pushes the Japanese back across the Yangtze River. (Off the record: The Führer visited Günther von Kluge's field headquarters at Smolensk. Anti-Hitler conspirators spoke to von Kluge beforehand, but they could not convince von Kluge to take action to arrest Hitler. Without von Kluge's help, the conspirators acted on their own, sneaking fused bombs disguised as brandy bottles aboard Hitler's aircraft, which took off for Rastenburg/Berlin, after dinner. The bombs failed to explode, and the conspirators had to take the risk, successfully, to retrieve the bottles before they were discovered.) RST
KorvKpt.& Cmdr. U 115
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03-14-23, 03:17 AM
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#355 | |
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The Old Man
Join Date: Mar 2010
Location: Frankfurt, Germany
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Leaving Kristiansand
Quote:
+++++++ U 115 - KTB - First War Patrol (17th war patrol overall) Sunday, 14 March 1943 - Kristiansand-Maviken 10 cbm fuel oil, lubrication oil and fresh water taken on. Received Op.-Orders and intel briefing: I. The Russian BI-3 rocket-powered prototype aircraft took its second flight at Sverdlovsk Oblast (modern day Yekaterinburg), in Russia. II. US Terror bombers of the US 8th Air Force bombed Kiel. III. After the successful convoy battles in the North Atlantic against convoys SC.121 and HX.228, the next big convoy battle operations against the two following convoys SC.122 and HX.229 are shaping up. a) Outbound transit via Iceland Passage and Qu.5269AL. b) Aerial reconnaissance is to be expected in the entire area of the Iceland Passage (although, some boats have made no mention of the fact). Mines and surface patrols were only occasionally encountered. c) Submerge for about 30 minutes on confirmation of a/c radar (also, by Magic Eye). d) Op.area: 1) As part of Group Seehund (2nd wave), Cape Town area, Mozambique Strait and Indian Ocean, East of Madagascar. 2) According to KTB of 8.3 para III U 509 was detailed to operate on traffic in the area north of Cape Town and received freedom of movement for this purpose. Supplying of "Seehund" boats is planned to take place in approximately lower third of DG. The Commander (Kptlt. Werner Witte) will decide whether the return passage is to take place with or without replenishment, according to the number of torpedoes and the traffic situation. 3) As of 8 March, the area of Route "A" east of Cape Town has been extended as follows: The boundary now runs from FM 4957 via GZ 7644, JK 8254, JC 1432 and KG 6876 then to the west as far as the African coast. 4) Return port is Bordeaux. 1618 - Casting off Kristiansand - Maviken N3/2, clear, visibility 7sm, >1000. Leaving Kristiansand via the northern transit path. Again many fishing trawlers in Kristiansand roadsted; Manning flak guns. 1721 - Qu.3869AN - Departed in convoy (with U-191; IXC/40; Kptlt. Helmut Fiehn). Entered transit path. During transit, some fishing trawlers cross the transit path. 1825 - Sundown. Weather and Sea unchanged. 2047 - Reached exit point of transit path. 2054 - Qu.3891AN - Course 270°. 2302 - F.T. from B.d.U.: O.K.W.-Report: Our armoured forces recapture Charkow. The British Submarine Thunderbolt (ex. Thetis), was sunk by the Italian Corvette Cicogna off Capo San Vito, Sicily. RST
KorvKpt.& Cmdr. U 115
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03-15-23, 02:47 AM
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#356 | |
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The Old Man
Join Date: Mar 2010
Location: Frankfurt, Germany
Posts: 1,580
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Outbound Transit
Quote:
+++++++ U 115 - KTB - First War Patrol (17th war patrol overall) Monday, 15 March 1943 - Southern coast of Norway 0540 - Morning Dawn. 0601 - F.T. from B.d.U.: B-Dienst Report: The Allies will soon begin to deploy the so called "Leigh Lights" (as of 14 April) and the British Royal Navy has launched their first X-class midget submarines. 0659 - Sunrise. Weather and Sea unchanged since Kristiansand. 0713 - Qu.3791AN - Course 304°. Released from convoy according to orders. (U-191; IXC/40; Kptlt. Helmut Fiehn, goes to Bergen) 0715 - Diving for Test dive acc. B.d.U.-Standing Order No.507. 145rpm. Seems to take a long time for the boat reach and to level out on the set depth (10m increments). 0754 - Boat is safe and secure at 2A-Meter. 0755 - Setting for Reception Depth. 0800 - Boat rises to 17.5m and levels out at T=20 at 0802. 0815 - Surfaced from S-Tiefe after 1h and 3.7nm. 0816 - Boat ventilated. Battery 97%. 1200 - Qu.3751AN - Days Run: 205.6 nm (19h 42') - ↗ 201.9nm (18h 42') - ↘ 3.7nm (1h) - since Kristiansand Total: 693.3 nm (62h 17') - ↗ 689.6nm (61h 17') - ↘ 3.7nm (1h) 504cbm (6cbm in 20h); Weather and Sea unchanged since Kristiansand. 1445 - Crash dive for training. Boat sinks to 75m and levels out at 71m at 1449h. 1450 - Set for Reception Depth. 96rpm. 1455 - Boat levels out very well at T=20. 1500 - Surfaced from S-Tiefe after 15min. and 1nm. 1501 - Boat ventilated, Compressed Air Supply filled. Battery 94%. 1501 - F.T. from B.d.U.: B-Dienst report: Enemy task force within the Eastern Barrage, Qu.5742AN, course SE, 21kn. 1836 - Sundown. Weather and Sea unchanged in 1 day/2h. 2315 - Qu.2655AN - Course 0°. RST
KorvKpt.& Cmdr. U 115
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KSDII-Ace/GWX 3.0 Gold/CCoM 10.0 + h.sie-patch; Windows 7 (64-bit); NVIDIA GeForce GTX650 (310.90) |
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03-16-23, 03:30 AM
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#357 | |
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The Old Man
Join Date: Mar 2010
Location: Frankfurt, Germany
Posts: 1,580
Downloads: 29
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Outbound Transit
Quote:
+++++++ U 115 - KTB - First War Patrol (17th war patrol overall) Tuesday, 16 March 1943 - West of Utsira 0541 - Morning dawn. Just before breakfast of the Port-Watch, FuMB Warning (no Magic Eye) 290°true, E=14000. 0542 - Diving. Just before closing the C/T hatch, an airplane is seen approaching the boat from 290°true, E~6000. Diving with A.K. During the diving process, Sound Contact with a convoy on a southerly heading bearing 95°, E=19000. 0545 - At A-Meter Wabos and again at 0548h. No damage. 0556 - 96rpm. Setting for Reception Depth. 0601 - T=20. Boat stays submerged. 0705 - Surfaced from S-Tiefe after 1h 23min. and 4.2nm. Boat ventilated. Battery 92%. 0707 - Sunrise. Weather and Sea unchanged in 1 day/15h. 0711 - Qu.2855AN - Wind and Sea increasing: N4/3, clear, good visibility, >1000mb. Course 355°. F.T. from B.d.U.: B-Dienst report: Enemy task force within the Eastern Barrage, Qu.4661AN, course ESE, 21kn. Operational trials of the 37-mm Flak gun-armed German Ju 87G anti-tank aircraft began on the Eastern Front. 1200 - Qu.8782AF - Days Run: 230.2 nm - ↗ 225.0nm (22h 22') - ↘ 5.2nm (1h 38') - On course 355°. Total: 923.5 nm (86h 17') - ↗ 914.6nm (83h 39') - ↘ 8.9nm (2h 38'). 499cbm (5cbm in 24h); Battery 94%; Weather and Sea unchanged since 0700. 1211 - Outgoing F.T.: To B.d.U.: At 0542h in Qu.2358AN, after FuMB detection diving from A/C approaching from 290°true. At A-Meter two Wabos - no damages. According sound contact convoy in Qu.2359AN on southerly heading. 499cbm. N4/3, clear, good visibility, >1000mb. Continue outbound transit. - RST - 1303 - Qu.8755AF - Course 302°. 1843 - Sundown. Weather and Sea unchanged since 0711. 2302 - F.T. from B.d.U.: Report on conovy battles HX.229 (37 ships) and SC.122 (50 ships): Group Raubgraf sank 13 ships of HX.229 and Group Stürmer sank 9 ships of SC.122. RST
KorvKpt.& Cmdr. U 115
__________________
KSDII-Ace/GWX 3.0 Gold/CCoM 10.0 + h.sie-patch; Windows 7 (64-bit); NVIDIA GeForce GTX650 (310.90) |
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03-17-23, 03:04 AM
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#358 | |
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The Old Man
Join Date: Mar 2010
Location: Frankfurt, Germany
Posts: 1,580
Downloads: 29
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Outbound Transit
Quote:
+++++++ U 115 - KTB - First War Patrol (17th war patrol overall) Wednesday, 17 March 1943 - Northern North-Sea 0535 - Morning Dawn. Setting 3/4-Moon in NW. 0713 - Sunrise. Weather and Sea unchanged in 24h. 0715 - Qu.7352AF - Diving for torpedo maintenance. 1020 - Bow tubes serviced - break. 1030 - Servicing of stern tubes until 1200. 1200 - Qu.7351AF - Days Run: 206.9 nm - ↗ 193.7sm (19h 15') - ↘ 13.2sm (4h 45') Total: 1130.4 nm (110h 17') - ↗ 1108.3nm (102h 54') - ↘ 22.1nm (7h 23') On course 288°; 493cbm (6cbm in 24h) 1201 - CO₂ Warning at 1.7% (after 4h 45'). 1300 - Setting for reception depth. At 1305 T=20. 1315 - Surfaced from S-Tiefe after 1h 15' and 3.6nm (Total: 6h and 16.8nm); Weather and Sea unchanged in 1day/6h. 1316 - Boat ventilated. 1323 - Crash dive for training. 1324 - A-10, 96rpm. 1327 - Setting for reception depth. T=20 at 1332. 1338 - Surfaced from S-Tiefe after 15min. and 1nm. 1340 - Boat ventilated; Compressed air supply filled; Battery 80%. 1342 - Charging batteries: Stbd.Diesel Charging, 496RPM; Port Diesel Propulsion, 375RPM/10kn. 1552 - Batteries charged: 2h 10' for 20%. 1/3-Ahead/10kn. 1713 - Qu.7311AF bottom right - ALARM! from Flying Boat (Sunderland) approaching from 295°true. Diving at E=7900. No FuMB Detection (also, no Magic Eye). At T=60 two loud Wabo detonations. 1717 - At A-Meter, further Wabos and again at 1720 - no damages. Boat remains submerged. 1813 - Setting for Reception Depth. T=20 at 1818. 1828 - Surfaced from S-Tiefe after 1h 15' and 3.8nm. 1829 - Boat ventilated; Compressed air supply filled; Battery 97%. 1842 - Qu.7311AF center - Diving due to FuMB detection in 136°true, E=15400 (no Magic Eye). 1847 - At A-Meter no Wabos. 1855 - Sundown. 1857 - Setting for Reception Depth. T=20 at 1902. 1907 - Surfaced from S-Tiefe after 25' and 1.4nm. Battery 94%. 2028 - Switched to Ireland Circuit as ordered. 2030 - Outgoing F.T.: To B.d.U.: Switched to Irland Circuit. At 1713 Alarm from Sunderland in 295°true, no FuMB and Magic Eye detection. At A-20 and A-Meter Wabos, no damages, Qu.7311AF center right. At 1842 diving due to FuMB Detection, at A-Meter no Wabos, Qu.7311AF center. 491cbm. N4/3, clear, good visibility, >1000mb. Continue outbound transit. - RST - 2300 - Qu.4895AF top left - Crossed Prime Meridian. 2303 - F.T. from B.d.U.: OKW-Report: Japanese forces attack British positions in Arakan, West-Burma, forcing Indian troops to fall back. US troops captured Gafsa, Tunisia. 90 Luftwaffe bombers attacked Cardiff, Wales. RST
KorvKpt.& Cmdr. U 115
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KSDII-Ace/GWX 3.0 Gold/CCoM 10.0 + h.sie-patch; Windows 7 (64-bit); NVIDIA GeForce GTX650 (310.90) |
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03-18-23, 04:26 AM
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#359 | |
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The Old Man
Join Date: Mar 2010
Location: Frankfurt, Germany
Posts: 1,580
Downloads: 29
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Outbound Transit - Entered Air Patrol Zone
Quote:
+++++++ U 115 - KTB - First War Patrol (17th war patrol overall) Thursday, 18 March 1943 - Norwegian Sea - - 1st week at sea completed - 0535 - Morning Dawn. Setting 3/4-Moon in NW. 0722 - Sunrise. Weather and Sea unchanged in 48h. 0810 - Crash Dive for Training. 0815 - Setting for Reception Depth. T=20 at 0820. 0825 - Surfaced from S-Tiefe after 15' and 1.1nm. 0826 - Compressed Air Supply filled. 1126 - Qu.4499AF bottom right - ALARM! from Sunderland in 330°true, E=9000, first on southerly heading, then turning toward the boat. No FuMB Detection (also, no Magic Eye). 1128 - At A-10 two Wabos and at 1131 and 1134 further Wabos - no damages. Boat remains submerged. 1200 - Qu.4499AF - Days Run: 213.7 nm - ↗ 201.0nm (20h) - ↘ 12.7nm (4h) Total: 1344.1 nm (5days 14h 17') - ↗ 1309.3nm (5 days 2h 54') - ↘ 34.8nm (11h 23') On course 288°; 485cbm (8cbm in 24h) 1300 - Setting for Reception Depth. T=20 at 1305. 1311 - Surfaced from S-Tiefe after 1h 11' and 3.4nm - since Etmal (Total 1h 45', 5.2 nm). 1313 - Boat ventilated and Compressed Air Supply filled; Battery 90%. 1320 - Testing of main diesels acc. B.d.U.-Standing Order No. 510: 2xH.F., 375RPM, 13kn; G.F., 450RPM, 16kn; A.K., 496RPM, 17.5kn, for 30min. - all okay. 1512 - Qu.4495AF top left - FuMB detection in 166°true, E=13100 (no Magic Eye). Just before closing the C/T hatch, a twin A/C is sighted at E=6800. 1514 - At T=40 Wabos far off. 1515 - At A-Meter no damages. 1521 - Further Wabos far off are heard. 1555 - Setting for Reception Depth. T=20 at 1600. 1612 - Surfaced from S-Tiefe after 1h and 3.0nm. Directly after surfacing, FuMB signals (Magic Eye) and a A/C is sighted in 130°true, E=13000, flying off on a southerly heading. 1613 - Boat ventilated; Battery 88.5%. 1645 - Qu.4491AF center right - FuMB Warning (no Magic Eye) and at 1646 A/C sighted in 230°true, E=12700, first on course N and at E=10000 turns towards the boat. Diving from approaching A/C. At A-20, four Wabos and further on at A-Meter, another 2x2 Wabos until 1651 - no damages. Cmdr.: Certainly a well patrolled area. FuMB and lookout crew are working well together. 1700 - Setting for Reception Depth. T=20 at 1705. 1711 - Surfaced from S-Tiefe after 25' and 1.3nm. 1716 - 2xH.F. (Cmdr.: Need to make up for lost ground) 1720 - Qu.4491AF center - ALARM! from Sunderland in 15°true, E=8000, on course SSW. No FuMB Detection (also, no Magic Eye). 1722 - At A-Meter three Wabos and two more at 1723 - no damages. 1730 - Setting for Reception Depth. T=20 at 1735. 1740 - Surfaced from S-Tiefe after 20' and 1.4nm. 1742 - Compressed Air Supply filled. 1745 - 2xH.F. 1817 - Qu.4459AF bottom right - Sunderland approaching boat from 200°true. No FuMB Detection (also, no Magic Eye). Is already pretty close, E=7000. Turning with A.K. toward the attacking A/C. Machine Gun fire, 4 Wabos fall wide behind the boat. Immediately after the fly-over, ALARM! At A-20 further four Wabos. Cmdr.: Turning towards the attacking A/C caused the Wabos to overshoot the boat. 1820 - At A-Meter, hull damage is assessed at 2%. This means that the boat now has a safe diving depth of max.215m! 1845 - Submerged cruise at A-20. 1900 - Inspection of Pi-G7H pistols acc. Standing B.d.U. Order No.307: 4 AtoFat under the bow and 3 AtoFat under the stern floor plates. 1915 - Sundown. 2002 - All Bow AtoFat Pi-G7H checked and found operational. 2100 - All Stern AtoFat Pi-G7H checked and found operational. Lights-Out for the Off-Watch. 2300 - CO₂ Warning at 1.7% (after 4h 43min.); Battery: 75.7%. RST
KorvKpt.& Cmdr. U 115
__________________
KSDII-Ace/GWX 3.0 Gold/CCoM 10.0 + h.sie-patch; Windows 7 (64-bit); NVIDIA GeForce GTX650 (310.90) |
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03-19-23, 02:30 AM
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#360 | |
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The Old Man
Join Date: Mar 2010
Location: Frankfurt, Germany
Posts: 1,580
Downloads: 29
Uploads: 0
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Outbound Transit - Entered Air Patrol Zone
Quote:
+++++++ U 115 - KTB - First War Patrol (17th war patrol overall) Friday, 19 March 1943 - Norwegian Sea - 0000 - CO₂ Warning at 1.9%. 0333 - Qu.4455AF - Course 270°. 0545 - Breakfast for the Port Watch. Setting for Reception Depth. 0550 - T=20. 0552 - S-Tiefe. Morning Dawn. 7/8-Moon in the West. Battery 65.7%; Compressed Air 270 Atü; CO₂ 2.7%. 0557 - Surfaced after 11h 40' and 32.6nm. Weather and Sea unchanged in 3 days. 0600 - Boat ventilated; Compressed Air Supply filled. Breakfast for the rest of the crew. 0605 - Charging batteries: Stbd.-Charging, 496RPM; Port-Propulsion, 375RPM. 0635 - Battery charged to 75%. 7/8-Moon setting in 300°true. 0726 - Sunrise. Weather and Sea unchagned in 3 days. 0806 - Qu.4446AF - center right - Right during watch change, ALARM! from A/C in 315°true, E=10500, on course south (No FuMB and no Magic Eye Warning). Interrupting charging process at 85%. At A-Meter no Wabos and no sound contact. Submerged cruise at A-20. 0914 - Setting for Reception Depth. 0919 - T=20. 0926 - Surfaced from S-Tiefe after 1h 20min., and 4.0nm. 0930 - Boat ventilated and Compressed Air Supply filled. Continue battery charging (83.6%) as before. 1130 - Battery Charged (2h for 16.4%); 2xH.F. 1200 - Qu.4444AF - Days Run: 134.5 nm - ↗ 88.8nm (8h 04') - ↘ 45.7nm (15h 56') Total: 1478.6 nm (6days 14h 17') - ↗ 1398.1nm (5days 10h 58') - ↘ 80.5nm (1day 3h 19') On course 270°; 484cbm (1cbm in 24h) 1834 - Qu.6655AE - 1925 - Sundown. Weather and Sea unchanged in 3.5 days. 7/8-Moon in the East. 2303 - F.T.'s from B.d.U.: OKW-Report: The British 8th Army has started its offensive against the Axis Mareth defense line. B-Dienst Report: The new Allied radiolocation system ASV 271-Mark-III (9.7cm Range) was used over the Bay of Biscay by bombers of the RAF No. 172 Squadron. This new radar system can locate Uboats at a distance of 12nm (22.22km). To U 191: Fiehn: Proceed to AE 2233 at high cruising speed. From there obtain information on the ice boundary north of Iceland and in the Denmark Straits. Report on this at the latest by 26.3 south of 61° N. Remain unobserved as far as possible and you are forbidden to attack any ships except troop transports and cruisers and above. Cmdr.: I appears as though, that at least some of the attacking aircraft are also equipped with the new radar system (mainly Sunderlands), as it seems that our installed FuMB system is unable to detect this new radar frequency. Detection by Magic Eye has only been done once thus far. The boat that we left in convoy with from Kiel and Kristiansand, received special orders. We wish her best of luck! RST
KorvKpt.& Cmdr. U 115
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KSDII-Ace/GWX 3.0 Gold/CCoM 10.0 + h.sie-patch; Windows 7 (64-bit); NVIDIA GeForce GTX650 (310.90) |
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Linear Mode
