Thanks Dan !


I think (not sure!) it is what Aktungbby posted from my own :oops: link:

"The ocular box of the type NLSR C/9 night periscope was fitted with additional optical system (kind of telescope), which made possible reading of the bearing while looking through the periscope. The bearing scale was visible in the upper part of the view field. This optical system consisted of prisms and lens, and transmitted the view of the bearing scale through the slit in the periscope collar to the ocular box interior. Type ASR C/13 periscope which can be seen in the U 995 control room comes most likely from the U-Hai or U-Hecht (ex U 2365 and U 2367 respectively) and was installed on U 995 in the time when (most likely) she was converted to the museum-ship (during her service in the Royal Norwegian Navy as KMN Kaura, in the control room was installed the original type NLSR C/9 periscope).

The ocular box of the type ASR C/13 periscope is simplified version of the type NLSR C/9 periscope ocular box. It is slightly smaller, however the layout of the oculars, knobs and levers is the same. The ocular box is not fitted with the optical system for showing the bearing scale in the view field (the system was probably abandoned to make the manufacture simpler, faster and cheaper). The current periscope bearing is indicated by indication line, engraved on the periscope tube. It points the current bearing at the fixed azimuth circle. That's why type ASR C/9 periscope is fitted with only one azimuth circle, with 180° mark directed toward to the bow (please note, that azimuth circle in the U 995 control room is not properly set relative to the U-Boat longitudinal line). Over the fixed azimuth circle, the deflection angle ring is located, which is used in the same way as in case of previously described periscopes."

The layout can be seen in a cross section here:
http://www.subsim.com/radioroom/show...&postcount=100

What?? www.Uboataces.com
 

Just found that, on their site:

"All Type VIIs were attack boats with a single-hull design – which is to say the pressure hull is also the outer hull (wrong, all were two-hull-boats). To withstand sea water pressure up to a crush depth of 250 meters, the pressure hull was further reinforced with strengthening steel ribs inside the hull (? i think those rings were outside of the inner pressure hull?). Ballast was provided by several ballast tanks situated internally and externally of the pressure hull. The main tank was just below the control room, inside the pressure hull. Outside the pressure hull, external tanks were fitted at the bow and stern. These tanks however did not provide sufficient capacity, so additional saddle tanks were fitted to the sides of the hull. Diesel fuel tanks were situated inside the pressure hull (also, but not only - fuel saddle tanks) to avoid leakages during a depth charge attack. The earliest variants were also fitted with serrated net cutters on the bow, a specification carried over from World War 1 boats, but these were quickly discontinued"

It really takes some effort to put so many mistakes into one paragraph :doh:

Hmm, can't get that to work on my virtual "Enigma".
4 cylinders? What's that "70" for?
Will have to read this manual again :hmmm:

Hallo Bl!tz,
danke, werde erst am WE dazu kommen, aber vielen Dank schonmal! :salute:
Als nächstes dann mal SH3 und 5 installieren..

Do you have to use the SH vanilla version for DEF, or can it be used with mods. I guess since all should have the same conditions using the special *.exe file, you need a certain version using the same "status" for all (?)

Danke und viele Gruesse,
U-Katze :O:

edit: wie lange bist Du noch in D.?

Any more Fotos from this meeting?

I have now registered but do not see more than before.

Try sending a PM to elanaiba, Catfish or Schroeder.

Welcome to SubSim :sunny:

@ Elanaiba,
have found a photo with a crewmember actuating the clutch for coupling the electric engines to the propshaft, but it's pretty bad (it is from one of Buchheim's three photo books). It is a simple hand wheel..

A delicate business
 

[QUOTE]A chief mechanician prisoner, claiming expert knowledge of Diesels, gave the following explanation of the term "Diesel-Electric." "Diesel-Electric" propulsion is used, when it is desired to put one Diesel out of action for repairs or other reasons, and it is nevertheless required to turn both screws. The electric motors are dual-purpose motors. They can be used either as dynamos or as generators as required. The switching over from one use to the other is done by means of a switchboard and a series of resistances. The whole procedure takes but a few seconds. If it is required, for example, to stop the port Diesel and keep under way on the other Diesel, the starboard generator is started from the batteries. The compression cocks of the starboard Diesel are opened, the generator slowed down and the clutch slowly let in, thus turning the Diesel engine. The cocks are then shut and the Diesel will run under its own power. The dynamo is then switched off and the speed of the Diesel increased so that the starboard generator produces enough electricity to drive the port dynamo. The electricity produced is led through the batteries to prevent the current fluctuating. The following table, found among captured documents, would therefore, indicate that if one Diesel is turning at 285 revs. at slow speed and the electric motor is coupled with it, the number of revs. is reduced to 240; the electricity produced is sufficient to turn the other screw at 155 revs. The loss in revolutions is due to the loss of power in the process of conversion. The differences in speed between port and starboard propellers is counteracted by the rudder. http://www.uboatarchive.net/U-570/U-570INT.htm Below is revs differential 'twixt diesel and electric 'clutched' revs: Slow Half Speed Three-fifth speed Four-fifth speed

^ Nice!
Not as Diesel-electric as in the US fleet subs, but the first time i read about this, and in detail!

Should post this in the Wolfpack forum, so they can build this sim right! :)
But maybe a bit too complicated to simulate all this :hmmm:

What should be simluated though is, while both Diesels running full ahead and both driving the generators (= both electric engines switched to generator/dynamo mode and coupled to the propshaft), the overall speed should change from say 18 knots to a bit less, but not decreasing the overall speed so much as it has been simulated in all those other sims!

Running full ahead while charging the batteries should still be good for some 15 knots!

thank you. Though I don't believe they would answer me. They don't know me.

On the contrary, I think you'll find they are quite amiable gentlemen.