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by Thorsten Wahl
Mon Jun 12, 2017 5:16 pm
Forum: Hypothetical Naval Scenarios
Topic: Richelieu vs. Bismarck
Replies: 23
Views: 491

Re: Richelieu vs. Bismarck

there wer quite definitive findings of german engineers regarding french projectile and armor qualities beeing inferior when compared to usual german ones, these findings werent substantiated to what degree French armour showed a increased tendency to crack(see also hit on turret roof of Dunkerque) ...
by Thorsten Wahl
Fri Jun 02, 2017 1:56 pm
Forum: Naval History (1922-1945)
Topic: Best rebuilt battleship?
Replies: 62
Views: 10124

Re: Best rebuilt battleship?

( Luetjen's thought he was engaging the main Home Fleet battle squadron, and that Renown was Nelson. He did not know it was only Renown and nine destroyers at that time). comment the german ships made contact with radar at about 25 km; visibility was considerable lesser. At a certain time ther were...
by Thorsten Wahl
Mon May 15, 2017 10:00 am
Forum: Hypothetical Naval Scenarios
Topic: Washington v Tirpitz
Replies: 8
Views: 320

Re: Washington v Tirpitz

Warships are complex machines. There are numerous variables and relationships that may affect the outcome of a battle. Influence of random events is far too great, to predict the outcome of one particular battle. And in realtiy it appears possible that even a weaker appearing ship may win two battle...
by Thorsten Wahl
Mon May 15, 2017 7:52 am
Forum: Bismarck General Discussion
Topic: Yaw deck?
Replies: 12
Views: 451

Re: Yaw deck?

The statement w/ yawdeck was placed by Dave Saxton some years ago on this board. He refers to correspondence between Bu.ord and someone else, If I remember correctly.
by Thorsten Wahl
Thu May 11, 2017 4:39 pm
Forum: Bismarck General Discussion
Topic: American SH shells - Famed or Folly
Replies: 8
Views: 283

Re: American SH shells - Famed or Folly

then a design favoring best performance against horizontal armor versus vertical armor made some sense. dont understand me wrong. its not the question of "defeating EVERY possible horizontal protection". The superheavy shell shrinks the difference between inner and outer limit of vertical...
by Thorsten Wahl
Thu May 11, 2017 1:13 pm
Forum: Bismarck General Discussion
Topic: American SH shells - Famed or Folly
Replies: 8
Views: 283

Re: American SH shells - Famed or Folly

I'm sorry - made a typing error typed 6 instead of 5 magazine protection 150 mm total thickness; 50 mm (whether deck) + 100 mm (armor deck) from official drawing Amt für Kriegsschiffbau "Schlachtschiff F gültig nur für Panzerdicken" link (zoomable) https://photos.google.com/photo/AF1QipO82...
by Thorsten Wahl
Tue May 09, 2017 3:23 pm
Forum: Bismarck General Discussion
Topic: American SH shells - Famed or Folly
Replies: 8
Views: 283

Re: American SH shells - Famed or Folly

> The fact that Bismarck's vertical protection scheme was deemed to be technically proof against almost any battleship gun afloat at any range in terms of a projectile piercing and reaching her vitals at short ranges suggests that perhaps USN designers were on the right track. In the event, the per...
by Thorsten Wahl
Tue May 09, 2017 11:30 am
Forum: Bismarck General Discussion
Topic: American SH shells - Famed or Folly
Replies: 8
Views: 283

Re: American SH shells - Famed or Folly

both shells wer fired using the same energy at the muzzle (about 300 MJ) expected result at 24 kyard Shell ----AOF---- Speed ----flightime --nominal single plate penetration 2240lb---22°---- 1538 fs ---38,8 s ~4,5 Inch deck pen, ~14,5 Inch vertical pen 2700lb---23,8°-- 1533 fs ---41,2 s ~5,5 Inch de...
by Thorsten Wahl
Tue May 02, 2017 4:15 pm
Forum: Hypothetical Naval Scenarios
Topic: Bismarck and Iowa
Replies: 46
Views: 1454

Re: Bismarck and Iowa

@spicmart: Bismarck's torpedo defense system was rated to withstand 250kg of TNT, expectation was that damage inwards of the TDS from larger explosions would be contained rather than prevented - Bismarck featured extensive subdivision. The rating seems quite conservative; German assumptions of the ...
by Thorsten Wahl
Tue May 02, 2017 12:27 pm
Forum: Bismarck General Discussion
Topic: Yaw deck?
Replies: 12
Views: 451

Re: Yaw deck?

American tests during WW2 of some spaced array systems indicated that yaw could provide as much as a + 30% enhancement of effective thickness in some cases. during and after WW2 -30% enhancement - complete description W. Hurlich; Spaced Armor 1950 http://oai.dtic.mil/oai/oai?verb=getRecord&meta...
by Thorsten Wahl
Tue Apr 18, 2017 12:15 pm
Forum: Bismarck General Discussion
Topic: Regarding Hood at DS : a new article
Replies: 10
Views: 1876

Re: Regarding Hood at DS : a new article

Their magazines and shell rooms were transposed from Hood, a significant alteration. There was good reason for this major alteration. what was the reason? The Germans went the other way: They explicitely decide to retain the powder chambers above the shell rooms with the Linienschiff 1913(Baden) de...
by Thorsten Wahl
Thu Apr 06, 2017 9:31 am
Forum: Hypothetical Naval Scenarios
Topic: Alaska Class vs Dunkquerke Class
Replies: 22
Views: 1030

Re: Alaska Class vs Dunkquerke Class

Between 22000 and 31000yd, KGV immune while Tirpitz vulnerable to 14" deck hits. This recommendation was overtaken past 1945/46 when the protective value of the german horizontal protection(50 mm + 80 mm) was evaluated with about 6 ". No british naval gun/shell in service at this time cou...
by Thorsten Wahl
Thu Apr 06, 2017 9:11 am
Forum: Bismarck General Discussion
Topic: Ian Ballantyne's views on Bismarcks distruction
Replies: 14
Views: 683

Re: Ian Ballantyne's views on Bismarcks distruction

even this is from Preston "All the communications, electical power, telemotor leads and boiler uptakes were above the low-armored deck, and enemy gunfire had shredded everything except the main machinery within minutes." The power supply of the ship was made from 4 independent main circuit...
by Thorsten Wahl
Tue Feb 14, 2017 9:56 am
Forum: Hypothetical Naval Scenarios
Topic: Alaska Class vs Dunkquerke Class
Replies: 22
Views: 1030

Re: Alaska Class vs Dunkquerke Class

Dunkerque had a large unprotected bow. Even the relatively much smaller forward spaces of Bismarck cause considerable problems by flooding, when riddled, despite extensive compartmentalisation.
by Thorsten Wahl
Wed Feb 08, 2017 11:07 am
Forum: Hypothetical Naval Scenarios
Topic: Bismarck and Iowa
Replies: 46
Views: 1454

Re: Bismarck and Iowa

im not sure about "consistently scoring hits" as the KTB from the Admiral Kanalküste mostly states "Erfolg nicht beobachtet" -"success not observed", except you have informations about gunfire damage on british ships available. sample 0266.jpg but as a result, these sho...

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