Search found 421 matches

by hans zurbriggen
Mon Dec 04, 2023 8:19 am
Forum: Bismarck General Discussion
Topic: Bismarck and European battleships vs.US battleships - hull shape and seakeeping qualities.
Replies: 32
Views: 67467

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

Hello Mr. Nilsson, while I fully agree with you re. Bismarck seagoing qualities, I would just ask why you say that A turret rangefinder was never installed: in all photos, I see its hood in place on A turret (like in all other turrets) until winter 1940. Rangefinder hood was removed from A turret in...
by hans zurbriggen
Thu Nov 09, 2023 8:24 am
Forum: Bismarck General Discussion
Topic: How close was the final battle?
Replies: 256
Views: 2592662

Re: How close was the final battle?

Hello all, no comment would be needed to above post. KGV Gunnery Control.jpg KGV Enclosure N.3_Section II_3.jpg Willingness to read and understand what is written in KGV GAR should be enough to judge whether there were problems or not with 284 personnel training (interpretation of echoes) and cooper...
by hans zurbriggen
Wed Nov 08, 2023 9:04 am
Forum: Bismarck General Discussion
Topic: How close was the final battle?
Replies: 256
Views: 2592662

Re: How close was the final battle?

Hi Byron, 1943 284M was clearly superior to 1941 284. Your point about early war radar "art" is very interesting and may explain problems on board KGV on May 27, despite a well tuned radar. Germans too had severe shortages of personnel training in usage of radar equipment. I feel British g...
by hans zurbriggen
Tue Nov 07, 2023 8:36 am
Forum: Bismarck General Discussion
Topic: How close was the final battle?
Replies: 256
Views: 2592662

Re: How close was the final battle?

Hi Byron, thanks again for your new info and reference ! I find a sentence from G. Mason quite interesting. He obviously analysed KGV GAR (as we are doing here; https://www.kbismarck.org/forum/viewtopic.php?p=91787#p91787 and in earlier posts) to summarize what happened during the engagement on May ...
by hans zurbriggen
Sun Nov 05, 2023 9:53 am
Forum: Bismarck General Discussion
Topic: How close was the final battle?
Replies: 256
Views: 2592662

Re: How close was the final battle?

Hi Byron, I agree: it looks like this is an a.a. aid only. I'm convinced that, in 1941, an 'average' 284 was limited to anti-ship gunnery usable range of 18.000-20.000 yards, as per precious 'Handbook' you kindly posted here (https://www.kbismarck.org/forum/viewtopic.php?p=91770#p91770). Fact that, ...
by hans zurbriggen
Fri Nov 03, 2023 9:08 am
Forum: Bismarck General Discussion
Topic: How close was the final battle?
Replies: 256
Views: 2592662

Re: How close was the final battle?

Hi Byron, thanks again for corrections to my wrong understanding, for explanations and additional info on 284 capabilities in 1941. It looks clear that in 1941 284 was able to receive echoes from distant ships (even up to 28.000 yards) but that "usable" ranging was possible only below 18.0...
by hans zurbriggen
Thu Nov 02, 2023 3:35 pm
Forum: Bismarck General Discussion
Topic: How close was the final battle?
Replies: 256
Views: 2592662

Re: How close was the final battle?

Hi Byron, thanks a lot, a most interesting document, confirming ranging tolerance of +/-150 yards for Type 284 vs +/- 40 meters of German FuMO radars in 1941. I wasn't aware that 284 had two panels: "ranging" scope and "warning" scope. I had always thought to 284 as dedicated gun...
by hans zurbriggen
Sat Oct 21, 2023 12:39 pm
Forum: Hypothetical Naval Scenarios
Topic: Fast Battleship League Table
Replies: 169
Views: 87583

Re: Fast Battleship League Table

Hi Frank, thanks this "league" is very interesting. I don't want to create problems or workload, but I have to observe that to call a draw with 20% difference is a bit too much. I can understand that a draw is called when <10% or possibly just 5%, but I feel that a 20% superiority is quite...
by hans zurbriggen
Thu Oct 19, 2023 5:31 pm
Forum: Hypothetical Naval Scenarios
Topic: Fast Battleship League Table
Replies: 169
Views: 87583

Re: Fast Battleship League Table

Hi Frank, thanks for re-playing BS vs PoW match with new "rules". However, when doubting whether "calibration "of radar vs optical ranging could have changed other results, I was thinking more to ships with poor or no radar at all (Littorio and Richelieu) vs ships with fairly goo...
by hans zurbriggen
Thu Oct 19, 2023 2:03 pm
Forum: Hypothetical Naval Scenarios
Topic: Fast Battleship League Table
Replies: 169
Views: 87583

Re: Fast Battleship League Table

Hi Frank,
I feel this will be more fair and result of last "match" seem to me more reflecting real strength of ships.

I wonder whether this can change any of the previous results too...

hans
by hans zurbriggen
Thu Oct 19, 2023 8:47 am
Forum: Hypothetical Naval Scenarios
Topic: Fast Battleship League Table
Replies: 169
Views: 87583

Re: Fast Battleship League Table

Hi Frank, one general comment on BB league "rules": I feel up to now too much emphasis has been given to radar contribution to final result. I had got this feeling already (especially for daylight confrontations) but last "match" reinforced it. It is true that end war radars (esp...
by hans zurbriggen
Thu Oct 19, 2023 8:07 am
Forum: Bismarck General Discussion
Topic: How close was the final battle?
Replies: 256
Views: 2592662

Re: How close was the final battle?

Hello all, I feel everything has been well documented. I won't answer anymore to screams (repeated annoying "!"), speculations (sold as truth) and hindsights (" we now know... ") that have nothing to do with what is clearly written in GAR and Enclosures re. actual KGV personnel e...
by hans zurbriggen
Wed Oct 18, 2023 11:25 am
Forum: Bismarck General Discussion
Topic: How close was the final battle?
Replies: 256
Views: 2592662

Re: How close was the final battle?

Hello all, this is my two cents opinion (I don't pretend to be right) of what might have happened at (e.g.) 08:50 on KGV 284 panel (based on analysis of Rodney's GAR and salvo plot, KGV GAR and its enclosures and estimated Bismarck course/range rate). Thanks to Byron for providing link I used for ex...
by hans zurbriggen
Wed Oct 18, 2023 9:53 am
Forum: Bismarck General Discussion
Topic: How close was the final battle?
Replies: 256
Views: 2592662

Re: How close was the final battle?

Hello all, "we now know that Type 284 could not produce a radar echo from a salvo at that range" This is not what is written in GAR and usage of this aftermath info is supposition. Please let's try to stick to evidences: 284 radar operator reported fall of shot of first salvo as short, thu...