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by tommy303
Mon Sep 21, 2015 7:34 pm
Forum: Bismarck General Discussion
Topic: We are developers of a new naval sim and we need some help
Replies: 80
Views: 6000

Re: We are developers of a new naval sim and we need some help

The helm console had some markings, such as the switch-over dial on the side which can be seen in the conning picture. On the whole, though, that can be ignored perhaps. It was marked 'aus' and 'ab' for off and on. There were a number of helm consoles with four in the forward bridge superstructure--...
by tommy303
Thu Sep 17, 2015 9:55 pm
Forum: Bismarck General Discussion
Topic: We are developers of a new naval sim and we need some help
Replies: 80
Views: 6000

Re: We are developers of a new naval sim and we need some help

The main conning tower was a split level structure with the actual fire control tower slightly higher than the roof of the conning position. The fire control space was roughly a triangle with rounded corners, while the conning position with helm and ship controls was a sort of horse shoe shape wrapp...
by tommy303
Thu Sep 17, 2015 7:54 pm
Forum: Bismarck General Discussion
Topic: We are developers of a new naval sim and we need some help
Replies: 80
Views: 6000

Re: We are developers of a new naval sim and we need some help

The helm console used a push button arrangement instead of a ship's wheel--very similar to rudder controls on a U boat. The helmsman gripped a horizontal bar with his hands and used the ball of his palm to push down on the right or left buttons. He had a rudder indicator to show how much rudder was ...
by tommy303
Thu Sep 17, 2015 7:38 pm
Forum: Bismarck General Discussion
Topic: We are developers of a new naval sim and we need some help
Replies: 80
Views: 6000

Re: We are developers of a new naval sim and we need some help

Conning tower interior with helm console, periscope, and rudder position indicator on extreme left. Tube is a voice pipe going out through the forward vision slit. http://i63.photobucket.com/albums/h130/thomas_fuller/Kommandostand.jpg Exterior shot showing temporary voice pipe exiting the vision sli...
by tommy303
Fri Sep 04, 2015 12:48 am
Forum: Naval Technology
Topic: Yamato's fire control system
Replies: 2
Views: 1044

Re: Yamato's fire control system

Campbell gives a good description in Naval Weapons of WW2, as does Friedman in Naval Firepower. You might also want to check out

http://www.navweaps.com/index_tech/tech-086.htm
by tommy303
Tue Sep 01, 2015 7:17 pm
Forum: Naval Weapons
Topic: Flooding magazines
Replies: 7
Views: 969

Re: Flooding magazines

In addition, bagged charges normally had a cloth envelope or pad sewn onto the end of the charge . This contained an igniter charge of several hundred grams of black powder which enhanced the action of the primer when the gun was fired, insuring that the fairly weak flash from the primer ignite the ...
by tommy303
Tue Sep 01, 2015 12:58 am
Forum: Naval Weapons
Topic: Flooding magazines
Replies: 7
Views: 969

Re: Flooding magazines

Cloth bagged charges were normally kept, as Dave suggested, in flashtight cannisters within the magazines. These would have provided protection from flooding. The same with German fore charges. German main charges were metal cased with the end sealed by a brass cap, although how waterproof that was ...
by tommy303
Tue Jul 28, 2015 10:32 pm
Forum: Naval History (1922-1945)
Topic: Warspite's Very Long Range Shot at Battle of Calabria
Replies: 8
Views: 1560

Re: Warspite's Very Long Range Shot at Battle of Calabria

A bit of both, I would say: good shooting acquired the target, but it was to a measure luck which got the hit as 26000 yards was somewhat in excess of Warspite's most practical range to engage.
by tommy303
Fri Jul 24, 2015 6:04 pm
Forum: Naval Weapons
Topic: Kriegsmarine 8.2 inch guns
Replies: 4
Views: 958

Re: Kriegsmarine 8.2 inch guns

The 20,3cm L/60 SKC34 was a much harder hitting and longer ranged weapon than the 21cm SK L/40 and 21cm SK L45 (only in Bluecher). The SK L/45 was the more modern of the two 8.2in and it fired a heavier shell to greater range than the older guns, but was inferior to the 20,3cm in both range and weig...
by tommy303
Fri Jul 24, 2015 4:51 pm
Forum: Naval History (1922-1945)
Topic: Cape Matapan and Italian WWII fighting procedures
Replies: 119
Views: 6445

Re: Cape Matapan and Italian WWII fighting procedures

The guns had even the muzzles closed by their tompion covers ([i]not sure about the translation[, the metal caps of the gun when they are not used /i]) as it was established by our obsolete instructions for night sailing"


Yes, tompion.
by tommy303
Mon Apr 20, 2015 7:24 pm
Forum: Bismarck General Discussion
Topic: 38 cm shells
Replies: 42
Views: 7411

Re: 38 cm shells

There was also a difference in hardening of the shell body. British shells were decrimentally hardened, while US (and the L/4,4 German shells were sheath hardened. Sheath hardening gave better results in oblique impacts, while decremental hardened shells gave their best results at low obliquity.
by tommy303
Fri Apr 17, 2015 6:28 pm
Forum: Bismarck General Discussion
Topic: Schlachtschiff Bismarck und Seemannschaft
Replies: 4
Views: 1562

Re: Schlachtschiff Bismarck und Seemannschaft

yes, good article.
by tommy303
Fri Mar 20, 2015 7:34 pm
Forum: Bismarck General Discussion
Topic: German VHF E Boat Emissions
Replies: 18
Views: 1888

Re: German VHF E Boat Emissions

The passive emissions given off by a VHF superheterodyne receiver local oscillator (LO) through the antenna are known as spurious emissions. The range at which these are detectable depends on a wide number of factors, not the least of which would be time of day, air temperatures, weather, type of an...
by tommy303
Thu Mar 19, 2015 12:22 am
Forum: Bismarck General Discussion
Topic: German VHF E Boat Emissions
Replies: 18
Views: 1888

Re: German VHF E Boat Emissions

VHF works on line of sight from antenna to antenna, for the most part, so even on an active transmission, range is relatively short. Picking up stray radiated emissions from a superheterodyne receiver through its antenna would be even lower due to the weakness of the source, although the Germans cla...

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