Search found 314 matches

Go to advanced search

by Bill Jurens
Sat May 13, 2017 11:35 pm
Forum: Bismarck General Discussion
Topic: Yaw deck?
Replies: 12
Views: 685

Re: Yaw deck?

Billy wrote: "The top deck of American battleships was sometimes officially known as the yaw deck."

I find this an interesting statement. Can you provide a primary source reference for this terminology?

Thanks.

Bill Jurens
by Bill Jurens
Sat Apr 08, 2017 10:37 pm
Forum: Bismarck General Discussion
Topic: Regarding Hood at DS : a new article
Replies: 10
Views: 2024

Re: Regarding Hood at DS : a new article

I have been in recent contact with Mr. Beurling (a pseudonym) regarding this paper. It is my impression that he has now decided to withdraw the article in order to make some revisions.

Bill Jurens
by Bill Jurens
Sat Apr 08, 2017 10:35 pm
Forum: Bismarck General Discussion
Topic: Ian Ballantyne's views on Bismarcks distruction
Replies: 15
Views: 860

Re: Ian Ballantyne's views on Bismarcks distruction

I would characterize 'Killing the Bismarck" as a well-written but technically superficial treatment of the subject, basically only one of the latest in what seems to be a perennial crop of "Bismarck books". It's by no means definitive, just light reading. Whether that suits one or not...
by Bill Jurens
Fri Dec 30, 2016 6:37 pm
Forum: Bismarck General Discussion
Topic: Denmark Strait hits on HMS PoW
Replies: 99
Views: 2208

Re: Denmark Strait hits on HMS PoW

I would agree with Mr. Saxton's comments.

Bill Jurens
by Bill Jurens
Fri Nov 04, 2016 6:55 pm
Forum: Bismarck General Discussion
Topic: May 23/24 night shadowing and interception approach CS1/BC1
Replies: 521
Views: 15605

Re: May 23/24 night shadowing and interception approach CS1/BC1

Hello Gentlemen: I wonder if some of the confusion may lie in the mixed use of both magnetic and true courses and bearings. The magnetic declination in the areas we are talking about seems to have been in the vicinity of 20 degrees, so the differences could be significant. I suspect that in some rep...
by Bill Jurens
Mon Mar 21, 2016 2:46 am
Forum: Bismarck General Discussion
Topic: How did so many survive?
Replies: 22
Views: 1602

Re: How did so many survive?

It's worth noting, perhaps, that in many cases the heaviest casualties end up on the UNengaged side. On the engaged side, unless you are hit directly, the incoming round will explode behind you and it's the poor fellows on the other side of the ship that catch most of the resultant fragments of proj...
by Bill Jurens
Fri Mar 04, 2016 4:02 am
Forum: Bismarck General Discussion
Topic: Bismarck firing procedures at DS
Replies: 437
Views: 16643

Re: Bismarck firing procedures at DS

Bismarck turning rates: This is a re-written (and somewhat shorter) re-post of a memo I wrote about an hour ago, which appears not to have gone through. If any duplication has occurred, please forgive. At least some of the turning circle information on the Bismarck has survived. There is a fair amou...
by Bill Jurens
Thu Nov 05, 2015 6:40 am
Forum: Naval Weapons
Topic: Allowable weight
Replies: 1
Views: 1280

Re: Allowable weight

It's important to include the ammunition load that might be required to render the weapon effective, and also the number of crew required to operate the various weapons you are comparing. People come with a lot of extra weight, because one has to accommodate not just the person himself, but all of t...
by Bill Jurens
Thu Nov 05, 2015 6:37 am
Forum: Naval Weapons
Topic: Italian main armament
Replies: 5
Views: 1426

Re: Italian main armament

Even fairly large changes in projectile weight would not affect accuracy that much. A heavier shell decreases initial velocity somewhat, but this factor is usually nearly cancelled out due to the fact that the heavier shell 'carries' better, i.e. has a higher ballistic coefficient. I've studied thes...
by Bill Jurens
Thu Nov 05, 2015 6:32 am
Forum: Naval Weapons
Topic: Battleship powder ram question?
Replies: 3
Views: 1376

Re: Battleship powder ram question?

I just noticed your question now. Very quickly, and in somewhat general terms, the answers are as follows: 1- When the guns are raised how do the 6x standard powder bags not drop back on the primer 4" under it? A) If the angle of departure was high enough, they did. Usually the angle of elevati...
by Bill Jurens
Fri Oct 02, 2015 4:02 pm
Forum: Bismarck General Discussion
Topic: The Plot
Replies: 1235
Views: 36374

Re: The Plot

@Antonio Hello Antonio. Thanks for the map. It's difficult (at least for me) to evaluate, as although it contains directions, i.e. azimuths, there is no scale. Also, as the time "window" you associate with it is about eight minutes long, and ships moving at 30 knots or so can move 4000 yar...
by Bill Jurens
Thu Oct 01, 2015 5:11 pm
Forum: Bismarck General Discussion
Topic: The Plot
Replies: 1235
Views: 36374

Re: The Plot

There has been a lot of discussion here on whether or not "The Plot" is incorrect. Of course it's incorrect. The technology of the time simply did not permit more precision than shown, and -- perhaps more importantly -- it is clear from the full transcript of the Board hearings that it was...
by Bill Jurens
Tue Sep 29, 2015 7:38 pm
Forum: Bismarck General Discussion
Topic: The Plot
Replies: 1235
Views: 36374

Re: The Plot

I think it's important to keep in mind that the various plots and charts used in the Hood inquiry were in a sense of secondary importance insofar as the Inquiry was intended to determine the CAUSE of the ship's loss, not to necessarily reconstruct in great detail the tactical maneuvers that took pla...
by Bill Jurens
Sat Sep 26, 2015 7:01 pm
Forum: Bismarck General Discussion
Topic: The Plot
Replies: 1235
Views: 36374

General comment

Before concluding with any certainty that the discrepancies and irregularities in the action(s) of 24 May may be ascribed to a 'cover-up', it would, be necessary -- or at least highly desirable -- to show, by actual demonstration, that similar levels of discrepancy and disagreement are not present i...
by Bill Jurens
Thu Jul 16, 2015 6:10 am
Forum: Bismarck General Discussion
Topic: Bismarck Steering Gear
Replies: 9
Views: 1229

Re: (more on) Bismarck Steering Gear

Further to my previous link, if that doesn't work, GOOGLE "The Wreck of DKM Bismarck − A Marine Forensics Analysis". It's downloadable in .pdf format and includes several diagrams that might be useful.

Bill Jurens

Go to advanced search