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by dunmunro
Fri Aug 18, 2017 8:45 pm
Forum: Naval Technology
Topic: torpedoes and torpedo bulges
Replies: 11
Views: 559

Re: torpedoes and torpedo bulges

Thanks DM, but videos are no good to me. I need an image to place in a survey report of mine to compare/ place next to a photo I took of what we believe is a torp warhead (no body) we found wedged under the port torp tubes on HMS Exeter wreck (before it all disappeared to the bloody salvors that is...
by dunmunro
Thu Aug 17, 2017 9:45 pm
Forum: Naval Technology
Topic: torpedoes and torpedo bulges
Replies: 11
Views: 559

Re: torpedoes and torpedo bulges

Gents, does anyone have a photo of a British torpedo, any Brit torpedo, that may have been on a British ship circa 1942? What I am specifically looking for is a Brit one that shows the 'nipple' that can be seen protruding from the 'nose-cone' of some torps (of various navies). TIA Kevin here's some...
by dunmunro
Fri Jun 16, 2017 2:07 pm
Forum: Hypothetical Naval Scenarios
Topic: Richelieu vs. Bismarck
Replies: 25
Views: 660

Re: Richelieu vs. Bismarck

Dave Saxton wrote: ".....Max HP produced ......Littorio:139,561" Hi Dave, the figure for Littorio's ship is correct as this was the maximum power produced during machinery trials (producing a speed exceeding 30 knots, albeit at very light load). However, one curious point is that, due to ...
by dunmunro
Fri Jun 16, 2017 3:42 am
Forum: Hypothetical Naval Scenarios
Topic: Richelieu vs. Bismarck
Replies: 25
Views: 660

Re: Richelieu vs. Bismarck

As for the ineffectiveness I read it somewhere and just found this quote of Thorsten Wahl: On the other side the Richelieu had a very powerful machinery. The HP output was increased in comparison with the german machines. aditional the weigth was roughly 500 tons less according with the german piec...
by dunmunro
Mon Jun 05, 2017 3:54 pm
Forum: Hypothetical Naval Scenarios
Topic: Bismarck and Iowa
Replies: 47
Views: 1766

Re: Bismarck and Iowa

Combat results -the UW protection/TDS-Double bottom wasnt impaired by the 2 ton charges of the X-Crafts. despite beneath/nearby explosions Nevertheless the ship was rendered off duty due to massive shock damage. But there was some flooding I guess? There was some flooding but Tirpitz was saved by t...
by dunmunro
Sat Mar 25, 2017 8:57 pm
Forum: Bismarck General Discussion
Topic: Jasper, Schmalenbach and 6 salvos...
Replies: 423
Views: 7701

Re: Jasper, Schmalenbach and 6 salvos...

Hello everybody, @ Herr Nilsson, you asked : What about "Storia Militare" 281? :think: It is just a summary of all the many discussions we had in here recently, ... mainly regarding the " Cover Up " and the " Articles of War ", ... on the British side of the battle, .....
by dunmunro
Tue Mar 21, 2017 4:51 pm
Forum: Movies, Films, Documentaries and Games
Topic: Royal Navy at War - A Sailor's View
Replies: 1
Views: 199

Re: Royal Navy at War - A Sailor's View

Hi all, I've just discovered a series of documentaries posted on Youtube in January 2017 that feature some great footage of the RN in various phases of the war and thought I'd share. I'll just post the link to the ones I've watched in its entirety so far - the first features colour footage. Royal N...
by dunmunro
Wed Mar 15, 2017 7:04 pm
Forum: Naval Technology
Topic: torpedoes and torpedo bulges
Replies: 11
Views: 559

Re: torpedoes and torpedo bulges

Thanks, I'll do that. I wonder if Barham was ever modified, I believe she was only hit by one torpedo, yet the result was catastrophic, every time I see that film of her blowing up I think of those poor chaps inside her - were there any survivors? Barham was bulged but not rebuilt as per Warspite, ...
by dunmunro
Wed Mar 15, 2017 6:05 pm
Forum: Naval Technology
Topic: torpedoes and torpedo bulges
Replies: 11
Views: 559

Re: torpedoes and torpedo bulges

Thanks for that. I realise that the effect of an explosion underwater magnifies the damage (rather like the 'Dambuster' bomb), but I'm puzzled as to why over the years that battleships were being built that so much was spent on providing upper hull protection against heavy shells that so little tho...
by dunmunro
Tue Mar 14, 2017 7:27 am
Forum: Naval Technology
Topic: torpedoes and torpedo bulges
Replies: 11
Views: 559

Re: torpedoes and torpedo bulges

Gentlemen, Yet another question for you! I was looking at a picture of a QE class ship and the enormous anti torpedo bulges she had on each side, yet in WW2 a number of ships were sunk by torpedoes, including her sister ship Barham, Bismarck and Yamoto. In addition, a number of ships were disabled ...
by dunmunro
Sun Mar 12, 2017 12:12 am
Forum: Naval Technology
Topic: Yamotoand Mushashi
Replies: 8
Views: 427

Re: Yamato and Musashi

With the Deutschland class the difference was calculated to about 15%, unless my sources are wrong. This is more plausible than 2%, considering that riveting requires overlap joints and much more framing. You have to a make a distinction from hull weight (IE the part of the ship that can be welded)...
by dunmunro
Sat Mar 11, 2017 8:42 pm
Forum: Naval Technology
Topic: Yamotoand Mushashi
Replies: 8
Views: 427

Re: Yamato and Musashi

With the Deutschland class the difference was calculated to about 15%, unless my sources are wrong. This is more plausible than 2%, considering that riveting requires overlap joints and much more framing. You have to a make a distinction from hull weight (IE the part of the ship that can be welded)...
by dunmunro
Sat Mar 11, 2017 7:22 pm
Forum: Bismarck General Discussion
Topic: Jasper, Schmalenbach and 6 salvos...
Replies: 423
Views: 7701

Re: Jasper, Schmalenbach and 6 salvos...

In any event the above was little more than a summary of PE's KTB and doesn't provide enough info for any analysis.
by dunmunro
Sat Mar 11, 2017 7:05 pm
Forum: Naval Technology
Topic: Yamotoand Mushashi
Replies: 8
Views: 427

Re: Yamotoand Mushashi

Yamato and Musashi used riveted construction. This meant that it was 15% heavier than it would be than if it used welded construction. That means it would have the same full load displacement as the Iowa class if it had been of welded construction. IIRC, the weight difference between welding and ri...
by dunmunro
Sat Mar 11, 2017 12:56 am
Forum: Bismarck General Discussion
Topic: Jasper, Schmalenbach and 6 salvos...
Replies: 423
Views: 7701

Re: Jasper, Schmalenbach and 6 salvos...

Hello everybody, the German timings in a summary document : What was the origin of the KM document? This is a Google translation: George in front of you. Distance over 300 hm. At 05.53 clock Hood and Prince of Wales open to about 290 hm. The fire on the dressing. At 05.55 clock it is returned by &q...

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