Search found 1577 matches
- Fri Dec 22, 2023 8:36 pm
- Forum: Bismarck General Discussion
- Topic: Group North and Group West
- Replies: 12
- Views: 25339
Re: Group North and Group West
AFAIK 12 a.m. is midnight and 12 p.m. is noon. To make it simple it should read 12:00 h or noon
- Wed Dec 20, 2023 9:41 am
- Forum: Bismarck General Discussion
- Topic: Group North and Group West
- Replies: 12
- Views: 25339
Re: Group North and Group West
The official border between Group North and West for Rheinübung was the line from the southern tip of Greenland to the northern tip of the Hebrides. If this line was crossed, a message should be made to the groups, which triggered the transfer of command. Based on the intercepted shadowings reports,...
- Thu Dec 07, 2023 1:06 pm
- Forum: Bismarck General Discussion
- Topic: Bismarck and European battleships vs.US battleships - hull shape and seakeeping qualities.
- Replies: 32
- Views: 58961
Re: Bismarck and European battleships vs.US battleships - hull shape and seakeeping qualities.
... The designers would have known the planned height above sea surface and evidently considered it adequate and therefore built a housing for a rangefinder, and in any case it is clear the Dora turret was at much the same height and did ship a rangefinder. However the spray factor is IMHO unchalle...
- Tue Dec 05, 2023 11:40 am
- Forum: Bismarck General Discussion
- Topic: Bismarck and European battleships vs.US battleships - hull shape and seakeeping qualities.
- Replies: 32
- Views: 58961
Re: Bismarck and European battleships vs.US battleships - hull shape and seakeeping qualities.
@wadinga
Read:
"excellent indifferent [to sea state] seagoing vessels with calm, flat pitching and low rolling movements".
In regard of the Baltic:
Yes, the Baltic is not the Atlantic, but OTOH I don't know any reports stating that Bismarck and Tirpitz had bad seakeeping qualities.
Read:
"excellent indifferent [to sea state] seagoing vessels with calm, flat pitching and low rolling movements".
In regard of the Baltic:
Yes, the Baltic is not the Atlantic, but OTOH I don't know any reports stating that Bismarck and Tirpitz had bad seakeeping qualities.
- Mon Dec 04, 2023 5:35 pm
- Forum: Bismarck General Discussion
- Topic: Secundary guns turrets
- Replies: 26
- Views: 24130
Re: Secundary guns turrets
Below every foremost turret is a handling room. The 15 cm magazines were behind bulkheads of this handling room. The shells and charges were stored on the opposite side of these bulkheads (distance ~1.5m). Ammunition was transported through small hatches into the handling room. The hatches were loca...
- Mon Dec 04, 2023 9:05 am
- Forum: Bismarck General Discussion
- Topic: Bismarck and European battleships vs.US battleships - hull shape and seakeeping qualities.
- Replies: 32
- Views: 58961
Re: Bismarck and European battleships vs.US battleships - hull shape and seakeeping qualities.
The AVKS-report states: "The subsequent installation of a rangefinder in turret A, which was still pending for the time being, can now be definitively omitted."
- Mon Dec 04, 2023 7:55 am
- Forum: Bismarck General Discussion
- Topic: Bismarck and European battleships vs.US battleships - hull shape and seakeeping qualities.
- Replies: 32
- Views: 58961
Re: Bismarck and European battleships vs.US battleships - hull shape and seakeeping qualities.
Bismarck is also rather wet forwards, leading to the range finder in A turret being unusable. That's not quite right. Bismarck's range A-turret finder was never installed and the real reason for not installing it later on was the low height above the waterline, which made it rather useless. Regardi...
- Mon Sep 18, 2023 8:56 am
- Forum: Bismarck General Discussion
- Topic: Gun precision / dispersion
- Replies: 129
- Views: 70420
Re: Gun precision / dispersion
Gneisenau had two brand-new FuMG 40G in early Dezember 41(one TS6 and one TS1). Gneisenau's old FuMG 39G TS1 was transfered to Scharnhorst and got a TS6 (Scharnhorst was the first ship, which had both devices equipped with TS6). At the same time Tirpitz had one FuMG 39G with TS1, one FuMG 40G with T...
- Mon Sep 18, 2023 7:19 am
- Forum: Bismarck General Discussion
- Topic: Gun precision / dispersion
- Replies: 129
- Views: 70420
- Tue Aug 15, 2023 10:11 am
- Forum: Bismarck General Discussion
- Topic: Identify indicator
- Replies: 35
- Views: 29854
Re: Identify indicator
@Marcello Malara Original plans? No, not plans in a narrower sense. On the whole I would estimate 1.5-2 m shelf space originals (operating manuals, building regulations etc.). @wadinga Thanks for the compliment, but this certainly overexaggerated. There are so many wonderful small design and enginee...
- Mon Aug 14, 2023 1:26 pm
- Forum: Bismarck General Discussion
- Topic: Identify indicator
- Replies: 35
- Views: 29854
Re: Identify indicator
I've colored Hipper's clutch and I hope it helps to understand the mechanism: They used a bevel gear to synchronise the revolutions of the turbine (blue) and propeller (yellow) shaft. In case of indentical revolutions the green part wouldn't rotate anymore (except the upper bevel wheel). The revolut...
- Tue Jul 25, 2023 3:25 pm
- Forum: Bismarck General Discussion
- Topic: Looking for the Lindemann Book by Grützner
- Replies: 7
- Views: 5598
Re: Looking for the Lindemann Book by Grützner
Where are you living?
- Sat Jul 15, 2023 8:37 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.
Thank you. I recommend to forget this aggregation of data.
- Fri Jul 14, 2023 12:59 pm
- 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.
As built, the dimensions of Bismarck and Tirpitz were almost identical, with the latter being a whopping 20 tons heavier and 17cm longer at the waterline. Now, Tirpitz shaved off quite some amount of armor; 5mm main belt, 30mm deck armor over the machinery (while adding 5mm over the magazines), and...
- Wed Jul 12, 2023 10:04 am
- Forum: Bismarck General Discussion
- Topic: Identify indicator
- Replies: 35
- Views: 29854
Re: Identify indicator
It depends. It's possible to stop the shaft by the turbine and then clamp it by a brake. This brake would work up to about 15 knots. The coupling on Scharnhorst and Bismarck could be coupled while shaft and turbine were running. There was an synchronized revolutions indicator to determine the right ...