Search found 3461 matches

by Alberto Virtuani
Tue Aug 27, 2019 9:04 pm
Forum: Bismarck General Discussion
Topic: Battleship Bismarck: A Design and Operational History
Replies: 59
Views: 8835

Re: Battleship Bismarck: A Design and Operational History

Hello everybody, Byron Angel wrote: "Now a distinguished and widely respected naval researcher and historian, William Jurens, after several decades of research in collaboration with two other noteworthy naval historians, has had his own work on Bismarck published by two prestigious presses - Seafort...
by Alberto Virtuani
Tue Aug 27, 2019 2:39 pm
Forum: Bismarck General Discussion
Topic: Battleship Bismarck: A Design and Operational History
Replies: 59
Views: 8835

Re: Battleship Bismarck: A Design and Operational History

Hello everybody, " I do not agree at all that the page 211 map which I have only just seen, thanks to Mr Bonomi's unauthorised reproduction of copyright material and Round-Robin e-mail, is "fully adopting" his 2005 map." :lol: " unathorized reproduction " is really the last word that should have bee...
by Alberto Virtuani
Tue Aug 27, 2019 7:59 am
Forum: Bismarck General Discussion
Topic: Battleship Bismarck: A Design and Operational History
Replies: 59
Views: 8835

Re: Battleship Bismarck: A Design and Operational History

Hello everybody, I have just seen (as most of the people reading this forum) Antonio's e-mail to the "moderator" and some interesting answers. I now better understand why the authors have been "unwilling" to provide any (solicited) explanation about the "similarity" of their page 211 map with Antoni...
by Alberto Virtuani
Sat Aug 24, 2019 9:23 pm
Forum: The Dreadnought Era (1906-1921)
Topic: WW1 battleships
Replies: 34
Views: 4939

Re: WW1 battleships

Hello everybody, culverin wrote: "The entire system, in modern parlance, was stowed on the net defence shelf which differed from class to class" Here the net shelf on board battleship Borodino (Borodino Class) of the Russian Navy (see red arrows, two booms are also well visible for the net deploymen...
by Alberto Virtuani
Sat Aug 24, 2019 6:58 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: 640

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

Hello everybody, Marcelo Malara wrote: "shallow waters (meaning about 10-20 m) allows more speed, I think that 65 m is out of the effect." Thanks Marcelo, I was however actually thinking that shallow waters should have played against speed, due to the viscosity of the water layers in contact with th...
by Alberto Virtuani
Fri Aug 23, 2019 9:43 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: 640

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

Hello everybody, Jose Rico wrote: "All speed trials took place in the Gulf of Danzig, in 65-meter deep waters off Neukrug" Wouldn't these relatively shallow waters affect negatively the ship's speed performances ? The Italian RN Roma could sustain her speed trials (August 1942) only once close to th...
by Alberto Virtuani
Fri Aug 23, 2019 4:56 pm
Forum: Bismarck General Discussion
Topic: Battleship Bismarck: A Design and Operational History
Replies: 59
Views: 8835

Re: Battleship Bismarck: A Design and Operational History

Hello everybody, Herr Nilsson wrote: "that was simply self-mockery....please accept my apologies...I think Byron is right and suggest that you open an dedicated thread about creatorship" Apologies accepted. Regarding the thread, this is the right thread, dedicated to the new book, several aspects ha...
by Alberto Virtuani
Fri Aug 23, 2019 3:49 pm
Forum: Bismarck General Discussion
Topic: Battleship Bismarck: A Design and Operational History
Replies: 59
Views: 8835

Re: Battleship Bismarck: A Design and Operational History

Hello everybody, Herr Nilsson wrote: "On the one hand it seems to be unwanted that Antonio's work was possibly adopted (IMHO a little far fetched) on the other hand it is criticised that it wasn't used. " Thanks for being in agreement about the fact that the map at page 211 is using Antonio's 2005 w...
by Alberto Virtuani
Fri Aug 23, 2019 1:13 pm
Forum: Bismarck General Discussion
Topic: Battleship Bismarck: A Design and Operational History
Replies: 59
Views: 8835

Re: Battleship Bismarck: A Design and Operational History

Hello everybody, Herr Nilsson wrote: "most maps including Antonio's are based on tracks from official reports....most maps are looking very similar at first glance" Not at all, Mr.Nilsson. Please refer to this thread (http://www.kbismarck.org/forum/viewtopic.php?f=1&t=5752&hilit=rohwer&start=240#p68...
by Alberto Virtuani
Fri Aug 23, 2019 10:16 am
Forum: Bismarck General Discussion
Topic: Battleship Bismarck: A Design and Operational History
Replies: 59
Views: 8835

Re: Battleship Bismarck: A Design and Operational History

Hello everybody, Herr Nilsson wrote: "Antonio's article is listed in "Selected Bibliography"....and Antonio is also mentioned in "Interviews and Correspondence with Authors" in the same chapter." Thanks. As I said, I have looked very quickly at the map and I have no doubt that the authors have corre...
by Alberto Virtuani
Thu Aug 22, 2019 7:36 am
Forum: Bismarck General Discussion
Topic: Battleship Bismarck: A Design and Operational History
Replies: 59
Views: 8835

Re: Battleship Bismarck: A Design and Operational History

Any comment to the map at page 211 (viewtopic.php?f=1&t=8258&start=30#p84686) ?
My points still wait for a meaningful reply (...possibly coming from someone able to provide such a reply...)

In the meantime, enjoy the Groundhog Day and mostly the maps !
by Alberto Virtuani
Wed Aug 21, 2019 10:57 am
Forum: Bismarck General Discussion
Topic: Battleship Bismarck: A Design and Operational History
Replies: 59
Views: 8835

Re: Battleship Bismarck: A Design and Operational History

Pgollin,
very politely, PLEASE let’s speak about the book and the map, in case you have any “argument”.....
by Alberto Virtuani
Wed Aug 21, 2019 6:27 am
Forum: Bismarck General Discussion
Topic: Battleship Bismarck: A Design and Operational History
Replies: 59
Views: 8835

Re: Battleship Bismarck: A Design and Operational History

Hello everybody, I have just got the book yesterday (it has been unfortunately delivered with a certain delay in Italy, during August, while I was on vacation). A wonderful volume from graphical viewpoint, with (most probably) quite detailed information especially related to operational rather than ...
by Alberto Virtuani
Fri Aug 09, 2019 4:31 pm
Forum: Bismarck General Discussion
Topic: 3-shaft propulsion
Replies: 115
Views: 2506

Re: 3-shaft propulsion

Hi Thorsten, from what I read in your posted table (http://www.kbismarck.org/forum/download/file.php?id=3574), it looks very unlikely that the twins could achieve the 32 knots (something around 190000 shp would be needed). Which displacement these data refer to for Gneisenau ? Sorry if my question i...
by Alberto Virtuani
Wed Aug 07, 2019 1:49 pm
Forum: Bismarck General Discussion
Topic: 3-shaft propulsion
Replies: 115
Views: 2506

Re: 3-shaft propulsion

Hello everybody, Herrr Nilsson wrote: "What are you looking for exactly?" Maximum (design, extrapower and actual) power for all 4 German battleships and their corresponding maximum speed, based on their power plant differences (if any relevant to these data). AFAIK (looking for confirmation): for bo...