Search found 255 matches

by Francis Marliere
Wed Jun 01, 2011 11:49 am
Forum: Naval History (1922-1945)
Topic: Rear admiral Howard F. Kingman
Replies: 2
Views: 1867

Re: Rear admiral Howard F. Kingman

Hello John,

Thanks a lot !

Francis
by Francis Marliere
Thu May 19, 2011 12:11 pm
Forum: Hypothetical Naval Scenarios
Topic: French Battleships
Replies: 14
Views: 5428

Re: French Battleships

Tiornu,

thanks for your kind answer. However I don't really understand why the rate of fire would be slowed. You can fire guns 1 and 3, then one or two seconds later, guns 2 and 4 ; a few seconds won't make any difference. Would you mind explain me ?

Best regards,

Francis
by Francis Marliere
Tue May 17, 2011 12:45 pm
Forum: Hypothetical Naval Scenarios
Topic: French Battleships
Replies: 14
Views: 5428

Re: French Battleships

Their primary shortcoming was the inefficiency of their main batteries. Circumstances being what they were, they didn't get delay coils until 1942 (I think). Tiornu, I understand that the inefficiendy of their main battery you are talking about was hudge dispersion because of shell interference (th...
by Francis Marliere
Thu Mar 10, 2011 7:13 pm
Forum: Naval Weapons
Topic: Naval gunnery accuracy - question for M. Jurens
Replies: 24
Views: 7995

Re: Naval gunnery accuracy - question for M. Jurens

Dave Saxton wrote: The best WWII combat example of radar dependent shooting- indicating what radar direction can achieve- occured only 31 days after Tassafaronga. This was the Hipper's shooting at destroyers at Barents Sea.
Could you please tell more ?
by Francis Marliere
Wed Mar 09, 2011 10:53 am
Forum: Naval Weapons
Topic: Naval gunnery accuracy - question for M. Jurens
Replies: 24
Views: 7995

Re: Naval gunnery accuracy - question for M. Jurens

I am talking about this article.

Regards,

Francis Marliere
by Francis Marliere
Wed Mar 09, 2011 9:34 am
Forum: Naval Weapons
Topic: Naval gunnery accuracy - question for M. Jurens
Replies: 24
Views: 7995

Re: Naval gunnery accuracy - question for M. Jurens

Gentlemen, I have ordered and read the article 'Fast Battleship Gunnery'. While wonderfull, the article opens the way for more questions. First, the authors talk about a spreadsheet to download in INRO's website. Unfortunately, I couldn't locate that file. Could you please tell me where it is ? The ...
by Francis Marliere
Wed Feb 09, 2011 3:09 pm
Forum: Naval History (1922-1945)
Topic: Rear admiral Howard F. Kingman
Replies: 2
Views: 1867

Rear admiral Howard F. Kingman

Gentlemen,

I am looking for a picture of RADM Howard F. Kingman and I can't find any on the web. Do you know where I can find one ?
I would also like to know who is the senor officer between admirals Kingman, Giffen, Griffin and McMorris.

Thanks for any help,

Francis Marliere
by Francis Marliere
Tue Jan 11, 2011 10:17 am
Forum: Naval Technology
Topic: ESM in WWII
Replies: 7
Views: 2536

Re: ESM in WWII

Jose, Dave,

thanks a lot for your kind and quick answer.

Best regards,

Francis
by Francis Marliere
Mon Jan 10, 2011 5:38 pm
Forum: Naval Technology
Topic: ESM in WWII
Replies: 7
Views: 2536

ESM in WWII

Gentlemen, I have a question about detection of radar emissions in WWII (ESM as we call it nowadays). I'd like to know if Scharnhorst in late 1943 could detect allied radars ? In one hand, one can read that Scharnhorst had a passive FuMB 4 Samos set (and may be a Sumatra one), but in another hand , ...
by Francis Marliere
Mon Jan 10, 2011 2:11 pm
Forum: Naval History (1922-1945)
Topic: Tirpitz AA Fire
Replies: 23
Views: 4902

Re: Tirpitz AA Fire

US heavy flak shot down about 25% of the total in the Pacific. Bgile, could you please tell me your sources ? I am interested by the subject and surprised because I was inclined to think that prior the introduction of VT fuze, heavy flak was not very effective. I think that according to South Dakot...
by Francis Marliere
Tue Nov 16, 2010 1:19 pm
Forum: Naval Weapons
Topic: Naval gunnery accuracy - question for M. Jurens
Replies: 24
Views: 7995

Re: Naval gunnery accuracy - question for M. Jurens

Gentlemen, sorry to post a new question on this topic, but there is another point I would like to discuss. As already said, the equation in the article was Ph = 10(E-TX) where X is the maximum range of the guns. I understand that the maximum gun range is achieved at 45° elevation. What about guns, s...
by Francis Marliere
Mon Nov 15, 2010 10:09 am
Forum: Naval Weapons
Topic: British guns at DS
Replies: 20
Views: 4314

British guns at DS

Gentlemen, It is usually said that VADM Holland tried to close the range between Bismarck and his ships because he knew that German 38 cm could easily defeat Hood's armor. However, I found very few data upon the capacity of British guns to penetrate Bismarck armor. I guess that British guns can only...
by Francis Marliere
Wed Oct 20, 2010 11:17 am
Forum: Naval Weapons
Topic: Naval gunnery accuracy - question for M. Jurens
Replies: 24
Views: 7995

Re: Naval gunnery accuracy - question for M. Jurens

Mr Jurens, does the INRO article you co-authored with Mr Fischer deals with that ?

In an old thread, you spoke of "Maneuver and Fire Rules" which were used by the Naval War College. Could you please tell me more about that ?

Best regards,

Francis Marliere
by Francis Marliere
Mon Oct 18, 2010 4:30 pm
Forum: Naval Weapons
Topic: Naval gunnery accuracy - question for M. Jurens
Replies: 24
Views: 7995

Naval gunnery accuracy - question for M. Jurens

Gentlemen, In a Mr Jurens's now well-known article (http://navweaps.com/index_inro/INRO_Hood_p4.htm), there is an equation that computes hit chances of naval artillery : Ph = 10(E-TX) Where: Ph = Percentage of hits K = Percentage of hits at maximum range of gun E = 2.00 T = 0.02 - (0.01 Log K) X = P...
by Francis Marliere
Mon Oct 18, 2010 4:13 pm
Forum: Bismarck General Discussion
Topic: Bismarck's radar
Replies: 2
Views: 3440

Bismarck's radar

Gentlemen, I am reading "Bismarck" by Bercuson & Herwig, and I am surprised that the authors quote German radars (Bismarck's FuMO 23 and Prinz Eugen's FuMO 27) as radar detectors and not as search radars. It's the very first time I read that since every other sources quote this sets as search and fi...