Search found 329 matches

by Bill Jurens
Thu Jul 16, 2015 6:05 am
Forum: Bismarck General Discussion
Topic: Bismarck Steering Gear
Replies: 9
Views: 1809

Re: Bismarck Steering Gear

Finally remembered one source, which includes a plan, at least of the after part of the steering gear, on page 26.

https://www.google.ca/search?q=Garzke+B ... -AG7qYOwDw

Bill Jurens
by Bill Jurens
Thu Jul 16, 2015 1:14 am
Forum: Bismarck General Discussion
Topic: Bismarck Steering Gear
Replies: 9
Views: 1809

Re: Bismarck Steering Gear

I was surprised to find how scarce copies of these sorts of drawings are on the internet and in various secondary sources, particularly when one considers how critical the steering arrangements turned out to be in the sinking of Bismarck. That being said, drawings ARE indeed available. A 1:10 scale ...
by Bill Jurens
Tue Jul 14, 2015 3:12 pm
Forum: Bismarck General Discussion
Topic: Bismarck Steering Gear
Replies: 9
Views: 1809

Re: Bismarck Steering Gear

You have a lot of questions there, but it's possible to tackle them all, albeit briefly. I'll insert brief answers -- recovered from memory -- into your text between asterisks, so please read on.. Were both rudders linked? ***Yes, but they could be worked independently as well.*** Is it an electro h...
by Bill Jurens
Fri Jun 26, 2015 4:06 am
Forum: Bismarck General Discussion
Topic: Prinz Eugen towing Bismarck?
Replies: 49
Views: 13465

Re: Prinz Eugen towing Bismarck?

Dave Saxton wrote: "The BB59 manual I have is dated 1945 and includes historic 1945 operational plans." Can you tell me what manual you are talking about, exactly? I'm pretty sure I have a copy of it here, but there are quite a few similar documents to choose from and I'm not sure precisely which on...
by Bill Jurens
Mon Jun 15, 2015 6:09 am
Forum: Naval Technology
Topic: Accuracy of Iowa Top Spot optics.
Replies: 14
Views: 3250

Re: Accuracy of Iowa Top Spot optics.

That relative performance of optical vs radar spotting, though the quotes are probably correct (Cdr Morss does not make things up), would certainly be considered atypical for regular day-to-day performance. Even in the 1980s the Iowas habitually used radar spotting for range, optical spotting for de...
by Bill Jurens
Fri Apr 03, 2015 10:11 pm
Forum: Bismarck General Discussion
Topic: The Court Martial for the Denmark Strait
Replies: 2211
Views: 74022

Re: The Court Martial for the Denmark Strait

Yes. I think that 0603 is fairly close to correct. Hood blew up at 0600 or so, and Prince of Wales took a fairly heavy pounding during the following few minutes. After rounding the wreck of Hood, P.O.W. was in some ways pretty much a wreck herself, and the decision to disengage, at least temporarily...
by Bill Jurens
Fri Apr 03, 2015 9:09 pm
Forum: Bismarck General Discussion
Topic: The Court Martial for the Denmark Strait
Replies: 2211
Views: 74022

Re: The Court Martial for the Denmark Strait

@ Antonio I've added my comments in between yours, between asterisks, so please read on... I see your opinion Bill, and of course I respect it. *** These are areas where honest and intelligent men can disagree to be sure.*** But let me ask your opinion about some simple facts : 1) What do you think ...
by Bill Jurens
Fri Apr 03, 2015 7:57 pm
Forum: Bismarck General Discussion
Topic: The Court Martial for the Denmark Strait
Replies: 2211
Views: 74022

Re: The Court Martial for the Denmark Strait

Although I have great respect for Mr. Bonomi's work, I'm afraid I must in this case express some skepticism regarding his fairly recent suggestions that there was some sort of 'cover-up' regarding British tactical activities at the Battle of Denmark Strait. My own observations and opinions are as fo...
by Bill Jurens
Sun Jan 25, 2015 6:14 pm
Forum: Bismarck General Discussion
Topic: The Plot
Replies: 1235
Views: 55650

Re: The Plot

All of this lengthy discussion has been interesting, but I fear that we may overall be missing the point, that being that the various plots etc. under discussion were intended to support a TECHNICAL rather than a TACTICAL analysis of the action, i.e. they were intended to support an inquiry into the...
by Bill Jurens
Fri Aug 29, 2014 11:31 pm
Forum: Bismarck General Discussion
Topic: The Plot
Replies: 1235
Views: 55650

Re: The Plot

Please excuse my ignorance here; as most readers of this forum will know I'm primarily a 'nuts and bolts' guy who tends not to follow tactical discussions in detail. That being said, this particular thread seems to have become a relatively hot one over the past few weeks, and I'd be grateful for a l...
by Bill Jurens
Sun May 18, 2014 4:52 pm
Forum: Bismarck General Discussion
Topic: Bismarck second hit on PoW : HACS Director
Replies: 79
Views: 7795

Re: Bismarck second hit on PoW : HACS Director

Wadinga wrote: "From the Admiralty Manual of Seamanship. 1932 The Repulse's advance and tactical diameter are however, 885 and 960 yards respectively That is to say after the order to turn at maximum helm is given the smaller, shorter Repulse takes 885 yards of travel at 20 knots (standard speed) be...
by Bill Jurens
Wed Nov 13, 2013 1:04 am
Forum: Bismarck General Discussion
Topic: Bismarck and her contemporaries
Replies: 1293
Views: 124457

Re: Bismarck and her contemporaries

Sineatimorar wrote: "The hit to the side on the torpedo bulkhead seems to be the more likely hit that caused the mission to be aborted would you not agree?" I don't consider myself a tactical expert, but my guess is that the real problem was that regardless of damage suffered once Bismarck had been ...
by Bill Jurens
Mon Nov 11, 2013 5:15 pm
Forum: Bismarck General Discussion
Topic: Bismarck and her contemporaries
Replies: 1293
Views: 124457

Shell hole in Bismarck's Bow

As a co-author of the paper cited in a recently posted memo, I would like to assure readers that the allocation of specific holes to specific projectile hits in the bow area remains, at best, highly speculative. The paper makes it sound as though the identification of the holes was definitive, but i...
by Bill Jurens
Thu Nov 07, 2013 3:46 pm
Forum: Bismarck General Discussion
Topic: Bismarck and her contemporaries
Replies: 1293
Views: 124457

Re: Bismarck and her contemporaries

In a previous post, someone asked if I might comment on ballistic computational issues. It is well-known that I remain skeptical regarding the reliability of figures obtained via various programs available on-line. This is largely because in most of these programs the precise computational procedure...
by Bill Jurens
Sun Aug 18, 2013 4:37 am
Forum: Naval Weapons
Topic: Question on longitudinal STS bulkheads inside Iowas turrets
Replies: 7
Views: 5067

Re: Question on longitudinal STS bulkheads inside Iowas turr

Hello Mr. Munro: I did take a quick glance at the thread you mentioned, but am not quite sure what is being argued about. Perhaps someone might clarify. My only immediate comments would be: a)There is really nothing new in the material being presented on Hood's testing, etc., as all of this has been...