Search found 1877 matches

by wadinga
Tue Aug 27, 2019 1:35 pm
Forum: Bismarck General Discussion
Topic: Battleship Bismarck: A Design and Operational History
Replies: 59
Views: 8833

Re: Battleship Bismarck: A Design and Operational History

Fellow Contributors, It has been said: As, even in this forum, everybody seem to be in agreement about (or, not being in agreement, is lacking any argument to counter) the fact that page 211 map is "fully adopting" Antonio's 2005 reconstruction (see above posts), Let there be no doubt, I do not agre...
by wadinga
Sun Aug 25, 2019 1:29 am
Forum: Bismarck General Discussion
Topic: FYI: meaning of the notation of the draft measurements during Bismarck’s trial runs, fall 1940
Replies: 25
Views: 635

Re: FYI: meaning of the notation of the draft measurements during Bismarck’s trial runs, fall 1940

Fellow Contributors, Wunderbar news for Teutonic-techno fans! Since all German ships are apparently measured in less-dense water, where their draft is deeper, that means they are faster everywhere else, because for a given loading their wetted area is smaller! Like in the Atlantic for instance. Or n...
by wadinga
Sat Aug 24, 2019 9:27 am
Forum: Bismarck General Discussion
Topic: FYI: meaning of the notation of the draft measurements during Bismarck’s trial runs, fall 1940
Replies: 25
Views: 635

Re: FYI: meaning of the notation of the draft measurements during Bismarck’s trial runs, fall 1940

Fellow Contributors, I used the comparative figures from an old article: Thus the specific gravity of the waters of the North Atlantic is said to be 1.0266, and that of the South Atlantic, 1.0267, showing a difference of .0001 only ; that of the North Pacific, 1.0254, of the South Pacific, 1.0265, a...
by wadinga
Sat Aug 24, 2019 1:37 am
Forum: Bismarck General Discussion
Topic: FYI: meaning of the notation of the draft measurements during Bismarck’s trial runs, fall 1940
Replies: 25
Views: 635

Re: FYI: meaning of the notation of the draft measurements during Bismarck’s trial runs, fall 1940

Fellow Contributors, I assume because of the density of the water. Exactly. As was raised but largely ignored before, the Baltic is nearly freshwater, less dense than oceanic water, so while Bismarck may have been immersed as if she were at operational displacement 47,900 m3 = 49,100 mt in seawater ...
by wadinga
Fri Aug 23, 2019 6:40 pm
Forum: Bismarck General Discussion
Topic: FYI: meaning of the notation of the draft measurements during Bismarck’s trial runs, fall 1940
Replies: 25
Views: 635

Re: FYI: meaning of the notation of the draft measurements during Bismarck’s trial runs, fall 1940

Fellow Contributors,
although we knew the speed and the SHP's, we never had an idea at what draft/displacement.
Gentlemen can we just confirm these "famous" speed trials took place in the Baltic?

All the best

wadinga
by wadinga
Wed Aug 21, 2019 4:48 pm
Forum: The Dreadnought Era (1906-1921)
Topic: WW1 battleships
Replies: 34
Views: 4936

Re: WW1 battleships

Fellow Contributors, Culverin pointed out All battleships, and some of the armoured cruisers, are fitted with torpedo net defence for protection against attack by torpedoes. In earlier ships this defence was fitted completely round the ship, but in the latest vessels the extent is about three-quarte...
by wadinga
Tue Aug 20, 2019 1:28 pm
Forum: Naval Technology
Topic: Question For Bill Jurens & All Re Barrel Length
Replies: 8
Views: 781

Re: Question For Bill Jurens & All Re Barrel Length

Fellow Contributors, A brief web search suggests there is a see-saw battle between high speed explosive reactive armour (ERA) creators and specialised sabot developers. Much as there was between conventional armour developers and projectile manufacturers in naval weapons. ERA was originally develope...
by wadinga
Mon Aug 19, 2019 5:44 pm
Forum: Naval Technology
Topic: Question For Bill Jurens & All Re Barrel Length
Replies: 8
Views: 781

Re: Question For Bill Jurens & All Re Barrel Length

Fellow Contributors, The original question said Could I turn a 37mm into a Tiger-killer just by making the barrel long enough and putting more powder in the cartridge?" Several inventors wanting to avoid an unwieldy barrel, eg Hermann Gerlich, opted for the squeeze bore principle see Wikipedia "Sque...
by wadinga
Mon Aug 05, 2019 1:17 pm
Forum: Bismarck General Discussion
Topic: Early RDF Type 284 Radar Performance
Replies: 15
Views: 390

Re: Early RDF Type 284 Radar Performance

Fellow Contributors, This statement is 100% correct if, perhaps IMHO, a little understated: Yes. Meteorological conditions and other anomalies (such as atmospheric ducting), even sea state to a degree, can influence radar performance. Yes hugely affect, we cannot talk about absolute guaranteed deliv...
by wadinga
Sun Jul 28, 2019 7:21 pm
Forum: Naval History (1922-1945)
Topic: Matapan
Replies: 73
Views: 3710

Re: Matapan

Fellow Contributors, The point of a forum is surely discussion and possibly argument. Not to constantly lock threads to no purpose, simply because there is some dissension. My original question was about the ships and the battle and we are still discussing a ship, submarine Ambra and its part in the...
by wadinga
Wed Jul 24, 2019 4:37 pm
Forum: Naval History (1922-1945)
Topic: Matapan
Replies: 73
Views: 3710

Re: Matapan

Fellow Contributors, I personally don't know what has been written in this book but I see what the highly respected Italian naval author Francesco Mattesini writes of Cernuschi's articles in Storia Militare: n. 172 – gennaio 2008 Punta Stilo, nuovi elementi Parte 1a (E. Cernuschi) n. 173 – febbraio ...
by wadinga
Wed Jul 24, 2019 10:21 am
Forum: The Dreadnought Era (1906-1921)
Topic: WW1 battleships
Replies: 34
Views: 4936

Re: WW1 battleships

Fellow Contributors, To return to the thread subject: anti-torpedo nets, looking at the splendid large format photos in R A Burt's series of books about British pre-Dreadnought and WWI battleships, it is clear that they were relatively insubstantial, as the rolled nets lining the decks of various ve...
by wadinga
Mon Jul 22, 2019 9:44 pm
Forum: Naval History in General
Topic: Legality of measures to prevent scuttling
Replies: 6
Views: 927

Re: Legality of measures to prevent scuttling

Hello andrewuk184, I think the whole business of "surrendering" in the heat of action is tricky. Just because you put your hands up an instant after unloading your last clip into a man's buddy, it might be a little optimistic to expect the survivor to treat you with overwhelming courtesy, whilst his...
by wadinga
Thu Jul 18, 2019 6:52 pm
Forum: The Dreadnought Era (1906-1921)
Topic: WW1 battleships
Replies: 34
Views: 4936

Re: WW1 battleships

Fellow Contributors, R A Burt, writing of the loss of HMS Triumph to U-21's torpedo in "British battleships 1889-1904" says As with Majestic the torpedo sliced through the nets as if they were paper and struck the ship with maximum force. Although some RN vessels had dispensed with torpedo nets and ...
by wadinga
Thu Jul 18, 2019 11:42 am
Forum: The Dreadnought Era (1906-1921)
Topic: WW1 battleships
Replies: 34
Views: 4936

Re: WW1 battleships

Hello Byron, Thanks for all that splendid information, a fine response. So no fittings for booms then. Just unnecessary "holes in the hull" just above the waterline. I hope the gunports were a better seal than the Mary Rose or the Vasa's :shock: I think the "net from vessels' own hull type barriers"...