Search found 421 matches

by hans zurbriggen
Wed Sep 06, 2023 7:46 am
Forum: Bismarck General Discussion
Topic: Gun precision / dispersion
Replies: 129
Views: 70443

Re: Gun precision / dispersion

Hello Mr.TTTT, you write: ' Thanks, interesting to hear about the 28cm guns - it makes sense. They seem to have done rather good in actual combat, though. '. Possibly 'large' dispersion of Scharnhorst's guns helped to hit HMS Glorious @ 24 km, as suggested by Mr. Jurens. Hello Mr. fsimon, thanks so ...
by hans zurbriggen
Tue Sep 05, 2023 4:45 pm
Forum: Bismarck General Discussion
Topic: Gun precision / dispersion
Replies: 129
Views: 70443

Re: Gun precision / dispersion

Hello Mr. TTTT, I don't have any info re. US and Japanese guns, and very few for British ones. Bismarck class 38 cm guns, according to German documents, were best guns among German large calibers (28 cm, 20,3 cm and even 15 cm) at least at usual battle distances. 28 cm from Scharnhorst class were th...
by hans zurbriggen
Mon Sep 04, 2023 8:10 am
Forum: Bismarck General Discussion
Topic: Denmark Strait: Half salvos vs full salvos
Replies: 13
Views: 3744

Re: Denmark Strait: Half salvos vs full salvos

Hello Mr. Angel, thanks for your correct description of German fire practice. However, please don't forget usual initial 'Vollsalve' fired as a broadside (8 guns) aimed at correcting bearing (and possibly warm-up guns) more than range. It is mentioned (as well as 'Gabelgruppe') in P. Jasper gunnery ...
by hans zurbriggen
Sat Aug 26, 2023 8:54 am
Forum: Bismarck General Discussion
Topic: Bismarck and European battleships vs.US battleships - hull shape and seakeeping qualities.
Replies: 32
Views: 58973

Re: Bismarck and European battleships vs.US battleships - hull shape and seakeeping qualities.

Hello, In addition to speed emphasis, I have always thought that "non-classical" shape of US BB's was due to Panama Channel max width of 33.5 meters. Bismarck could not pass through (36 meters), while US designers were required to design their BB's to enable moving them quickly from one oc...
by hans zurbriggen
Wed Aug 16, 2023 4:27 pm
Forum: Bismarck General Discussion
Topic: Radar Development
Replies: 3
Views: 1793

Re: Radar Development

Hello Mr. kodexof731, AFAIK Admiral Scheer had her radar fixed at sea by crew members during her spectacular two oceans cruise in 1940-1941, when U-124 delivered spare triode to replace defective one, before her return to Germany. Replacement at sea is not described as "exceptional" by Adm...
by hans zurbriggen
Mon Aug 14, 2023 3:50 pm
Forum: Bismarck General Discussion
Topic: Corrrect 20/37mm AA Guns for Bismarck
Replies: 2
Views: 1458

Re: Corrrect 20/37mm AA Guns for Bismarck

Hello Mr. kodexof731,
re. 20 mm, C/30 were replaced with C/38 in 1941.
re. 37 mm, C/30 were present on board until 1944.

Therefore, answer to your question depends on exact date on which you want to model your ships.

hans
by hans zurbriggen
Wed Jul 12, 2023 7:28 am
Forum: Bismarck General Discussion
Topic: Tirpitz and Gneisenau main armor belt thickness etc.
Replies: 8
Views: 6622

Re: Tirpitz and Gneisenau main armor belt thickness etc.

Hello Mr. TTT, AFAIK, Scharnhorst and Gneisenau had same max belt thickness of 320 mm. 350 mm is an error, repeated in many publications, and refers to a second proposed project (slower but more heavily armored) that was not approved. (please see discussion here: http://www.kbismarck.org/forum/viewt...
by hans zurbriggen
Sat Jun 24, 2023 8:39 am
Forum: Warship Photos
Topic: Please help identify this ship
Replies: 5
Views: 7708

Re: Please help identify this ship

Hello Mr. Quantumny,
IMHO photos do not relate to same ship. Structures/fittings/camo are not similar.

However, I'm no expert of German support ships and cannot help further.

hans
by hans zurbriggen
Tue May 30, 2023 10:13 pm
Forum: Hypothetical Naval Scenarios
Topic: Scharnhorst vs Alaska
Replies: 34
Views: 9680

Re: Scharnhorst vs Alaska

Hello Mr. Dunmunro, I see my kind request to stop diverting the thread is not listened at. I have pointed out that 05:52 or even 05:53, as BS open fire time, is inconsistent with distance data officially reported from both German ships, but you prefer to trust more some generic observations (e.g. ' ...
by hans zurbriggen
Tue May 30, 2023 8:23 pm
Forum: Hypothetical Naval Scenarios
Topic: Scharnhorst vs Alaska
Replies: 34
Views: 9680

Re: Scharnhorst vs Alaska

Hello Mr. Dunmunro, your statements are based on British observations only (from remote ships, and even not in agreement among them). However any German open fire at 05:52 or 05:53 (as you seem to claim) would be against all official German reports written by German officers (who ordered this open f...
by hans zurbriggen
Tue May 30, 2023 2:13 pm
Forum: Hypothetical Naval Scenarios
Topic: Scharnhorst vs Alaska
Replies: 34
Views: 9680

Re: Scharnhorst vs Alaska

Hello Mr. Michael L , my money would be on twins against Alaska and Guam too. I would even consider Gneisenau machines more reliable than Scharnhorst (at least historically) and their armor scheme as far superior. Due to 11" light shell, slight advantage to Alaskas at extreme ranges, but hits a...
by hans zurbriggen
Tue May 30, 2023 9:51 am
Forum: Hypothetical Naval Scenarios
Topic: Scharnhorst vs Alaska
Replies: 34
Views: 9680

Re: Scharnhorst vs Alaska

Hello Mr.Dunmunro, this is an old discussion that should not have been re-opened here (nothing to do with thread topic). You are right that British observations are (with T. Briggs exception) all in favor of Bismarck returning fire few seconds after British ships (05:53), but they are sometimes gene...
by hans zurbriggen
Sun May 28, 2023 8:20 am
Forum: Bismarck General Discussion
Topic: How close was the final battle?
Replies: 256
Views: 2224279

Re: How close was the final battle?

Hello all, interesting penetration data, however they don't take into account that Bismarck armor scheme was more complex and efficient than that: 320 mm belt (13") was backed by 100-120 mm slope plus 45 mm torpedo bulkhead, an equivalent of 600+ mm (due to inclination of plates) armor grade st...
by hans zurbriggen
Sat May 27, 2023 8:53 am
Forum: Bismarck General Discussion
Topic: How close was the final battle?
Replies: 256
Views: 2224279

Re: How close was the final battle?

Hello Mr. Mustang, seasickness is a purely physiological phenomenon true, but seasickness is caused by roll, pitch and jaw. Our ears are a biological kind of 'fire control system' that (in my case) cannot cope with movements in a stopped (or slow moving) boat, while they can if boat is steaming fast...
by hans zurbriggen
Sat May 27, 2023 8:22 am
Forum: Bismarck General Discussion
Topic: How close was the final battle?
Replies: 256
Views: 2224279

Re: How close was the final battle?

Hello Mr. Mustang, Except in calm waters, higher speed does tend to be correlated with an increased stability of the gun platform. In addition to Mr. Jurens statement, have you ever tried motion at sea on a boat making speed vs a stopped (or very slow) one ? I have (suffering seasickness). Plus 'Phy...