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by Bill Jurens
Wed Jan 12, 2005 1:17 am
Forum: Bismarck General Discussion
Topic: Stern section of the Bismarck - question
Replies: 116
Views: 44846

"lightly constructed Bismarck..."

The sometimes somewhat negative replies to my assessment of Bismarck as being somewhat lightly constructed with comparison to her contemporaries suggested that I should check some figures to see if they matched my intuition. Here, from a variety of sources and rounded to the nearest percent, are the...
by Bill Jurens
Tue Jan 11, 2005 3:46 pm
Forum: Bismarck General Discussion
Topic: Stern section of the Bismarck - question
Replies: 116
Views: 44846

Bismarck construction

Regarding Bismarck's construction, I can assure readers that no mirth or sarcasm, etc. was intended. I have been fortunate to have been able to visit and tour virtually all of the battleships still extant, have viewed a very large number of drawings of Bismarck and have also been extremely fortunate...
by Bill Jurens
Sun Jan 09, 2005 11:19 pm
Forum: Bismarck General Discussion
Topic: Stern section of the Bismarck - question
Replies: 116
Views: 44846

welding and impacts

Dave Saxton has, I think, done an excellent job in summarizing the situation just prior to and during the war. I've seen no better nor more accurate summary anywhere. To Javier and Ulrich: The impact speed is indeed taken to be about 20 mph, but as studies of sinking objects (albeit much smaller tha...
by Bill Jurens
Sun Jan 09, 2005 6:14 pm
Forum: Bismarck General Discussion
Topic: Stern section of the Bismarck - question
Replies: 116
Views: 44846

Welding and record keeping

I think that the problem revolving around differences in record keeping and record survival is a real one. It's likely, for example, that Japanese shipbuilders experienced welding failures too, but it's unlikely that many of the records of those failures now survives or is reasonably accessible to E...
by Bill Jurens
Sun Jan 09, 2005 1:04 am
Forum: Bismarck General Discussion
Topic: Stern section of the Bismarck - question
Replies: 116
Views: 44846

Hull problems

This topic seems -- either intentionally or accidentally -- to have be been diverted from a discussion regarding the design of stern joints on Bismarck to some sort of general investigation into the performance of USN designed hulls in typhoons, etc. There is really very little relationship here, an...
by Bill Jurens
Fri Jan 07, 2005 10:20 pm
Forum: Bismarck General Discussion
Topic: Stern section of the Bismarck - question
Replies: 116
Views: 44846

Green water

I would concur entirely with your observation. I might not have made myself entirely clear. My reference to green water was intended to refer to aircraft carriers only, where overhanging flight decks forward were in some cases pushed well out of alignment due to green water coming over the bows. Col...
by Bill Jurens
Fri Jan 07, 2005 3:58 pm
Forum: Bismarck General Discussion
Topic: Stern section of the Bismarck - question
Replies: 116
Views: 44846

Loss of Pittsburgh bow

In very brief summary, the loss of Pittsburgh's bow was attributed to a discontinuity in structural characteristics -- as I recall the keel aft of the break point was rivetted and the keel forward of the break point was welded -- and also due to poor quality welding and perhaps lack of maintenance a...
by Bill Jurens
Thu Jan 06, 2005 6:42 am
Forum: Bismarck General Discussion
Topic: Stern section of the Bismarck - question
Replies: 116
Views: 44846

Bows and anti-aircraft fire...

I have been following this thread a bit and may be able to add some material of value. I am fortunate to have on file a complete set of USN WWII War Damage Reports, including the reports covering most of the cases where USN ships lost or suffered a heavily damaged bow. I also have complete Booklets ...
by Bill Jurens
Mon Jan 03, 2005 6:25 am
Forum: Bismarck General Discussion
Topic: Stern section of the Bismarck - question
Replies: 116
Views: 44846

To G.E. re. Bismarck issues, etc.

I will reply only briefly to what I see as a rather agressive and invective-filled memo. a) If the 'aft framing plans' are indeed in the National Archives, I have almost certainly seen them, and quite probably have copies on microfilm. You must remember that this "Bismarck stuff" is really just a so...
by Bill Jurens
Mon Jan 03, 2005 1:04 am
Forum: Bismarck General Discussion
Topic: Stern section of the Bismarck - question
Replies: 116
Views: 44846

Answers...

I feel like I am being cross-examined. Since you asked direct questions, I will provide direct answers, preceeded by asterisks ***. Bill: It was less than 2 years ago that we secured the actual plans of the Bismarck's modular stern and we still do not have the framing diagrams. Ergo, please tell me ...
by Bill Jurens
Sun Jan 02, 2005 6:17 am
Forum: Bismarck General Discussion
Topic: Stern section of the Bismarck - question
Replies: 116
Views: 44846

Stern of Bismarck

The welded joint design securing the stern of Bismarck was, if not poorly executed, certainly poorly designed, almost sophmoric. Bill Garzke and I dealt with this issue in some detail in a paper delivered to the Chesapeake section of the Society of Naval Architects and Marine Engineers a couple of y...
by Bill Jurens
Sat Jan 01, 2005 10:33 pm
Forum: Bismarck General Discussion
Topic: Stern section of the Bismarck - question
Replies: 116
Views: 44846

Bibliography

Well. Perhaps I spoke too soon. This certainly seems to represent an impressive reading list, and suggests that the author did indeed do a good deal of homework. Unfortunately, as you noted, he did miss out on any of the James Cameron material -- I have not really commented on that very extensively ...
by Bill Jurens
Thu Dec 30, 2004 9:23 pm
Forum: Bismarck General Discussion
Topic: Stern section of the Bismarck - question
Replies: 116
Views: 44846

Article

I have never heard of the author before, which suggests that the treatment is based entirely on secondary sources, i.e. simply a rewrite and re-interpretation of other secondary sources. This would render it a tertiary source, making it interesting but not-very-valuable reading. Check the bibliograp...
by Bill Jurens
Tue Dec 28, 2004 3:55 am
Forum: Bismarck General Discussion
Topic: Stern section of the Bismarck - question
Replies: 116
Views: 44846

Bismarck stern damage.

Sounds interesting. Who was the author?

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