Naval History Forums

Hello John,

Thanks a lot !

Francis

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

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...

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 ?

I am talking about this article.

Regards,

Francis Marliere

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 ...

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

Jose, Dave,

thanks a lot for your kind and quick answer.

Best regards,

Francis

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 , ...

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...

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...

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...

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

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...

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...