Search found 518 matches

by Bill Jurens
Sun Apr 07, 2019 2:02 am
Forum: Bismarck General Discussion
Topic: PoW's gunnery VS BSM's gunnery
Replies: 515
Views: 12510

Re: PoW's gunnery VS BSM's gunnery

Without seeing the original negatives, etc., it's difficult to tell. Technically, we don't even know if the filming was done in 16mm or 35mm format, although these were (usually) about the same aspect ratio. (As I recall, one was about 1.34:1 while the other was about 1.37:1, but that's just recolle...
by Bill Jurens
Sat Apr 06, 2019 1:44 am
Forum: Bismarck General Discussion
Topic: PoW's gunnery VS BSM's gunnery
Replies: 515
Views: 12510

Re: PoW's gunnery VS BSM's gunnery

Northcape has suggested this thread be closed as futile. Because the discussion still seems fairly lively and has remained at least tolerably civil, I will allow it to remain open for now.

Bill Jurens.
by Bill Jurens
Fri Apr 05, 2019 11:26 pm
Forum: Bismarck General Discussion
Topic: PoW's gunnery VS BSM's gunnery
Replies: 515
Views: 12510

Re: PoW's gunnery VS BSM's gunnery

With respect to some of my previous analysis Mr. Virtuani wrote: Where is this value coming from, please ? AFAIK, the German 15" gun had a shell angle of fall of 10°-11°at 15000 meters. This would match very well with the PoW damage report, that estimated 9°. My statement was "Depending upon quibble...
by Bill Jurens
Fri Apr 05, 2019 8:14 pm
Forum: Bismarck General Discussion
Topic: PoW's gunnery VS BSM's gunnery
Replies: 515
Views: 12510

Re: PoW's gunnery VS BSM's gunnery

HMSVF wrote: "One last question if I may!? Would a say a 110 metre difference still constitute a straddle ? Or would the gunnery officer recalculate for 100 metres down?" Making some reasonable assumptions would suggest that Bismarck's expected average pattern size at the ranges we are talking about...
by Bill Jurens
Fri Apr 05, 2019 4:15 pm
Forum: Bismarck General Discussion
Topic: PoW's gunnery VS BSM's gunnery
Replies: 515
Views: 12510

Re: PoW's gunnery VS BSM's gunnery

HMSVF wrote: "Are the shell splashes short or long? If they are short doesn't that mean that the shell which went through the compass platform had a completely different angle of fall than the rest of the salvo, I mean the compass platform was way up high in the bridge structure, I'd imagine it didn...
by Bill Jurens
Fri Apr 05, 2019 3:37 am
Forum: Bismarck General Discussion
Topic: PoW's gunnery VS BSM's gunnery
Replies: 515
Views: 12510

Re: PoW's gunnery VS BSM's gunnery

You may not be missing anything. It could be that the terms 'open' and 'closed' with respect to 'A-arcs' involved components of both a physical and operational nature. So although the A-might have been physically open, i.e. there was no danger of shooting off intervening superstructure, they might h...
by Bill Jurens
Thu Apr 04, 2019 6:04 pm
Forum: Bismarck General Discussion
Topic: PoW's gunnery VS BSM's gunnery
Replies: 515
Views: 12510

Re: PoW's gunnery VS BSM's gunnery

Mr. Virtuani presented a listing a few memos ago in which he wrote: "7) PoW was initially heavily handicapped by having only the fore turrets bearing for the first 8 salvos, and despite that, she hit first." I'd be interested in knowing how the sequence and timing of hits, particularly on Bismarck, ...
by Bill Jurens
Thu Apr 04, 2019 3:16 am
Forum: Bismarck General Discussion
Topic: PoW's gunnery VS BSM's gunnery
Replies: 515
Views: 12510

Re: PoW's gunnery VS BSM's gunnery

I am wondering if the analysis might benefit from a reversion to USN gunnery target practices which basically measured efficiency in hits per gun per minute, excluding the first shot from each gun, which was considered a 'warming round'. The full rulebook for gunnery exercises in 1940 is extremely d...
by Bill Jurens
Tue Apr 02, 2019 8:49 pm
Forum: Bismarck General Discussion
Topic: PoW's gunnery VS BSM's gunnery
Replies: 515
Views: 12510

Re: PoW's gunnery VS BSM's gunnery

I have had to make a fairly large number of redactions to some of Mr. Virtuani's recent postings. I would again caution him to please refrain from editorialization and unnecessary commentary. There is no necessity to insert snide asides and emojis suggesting that other correspondents are in some way...
by Bill Jurens
Mon Apr 01, 2019 7:58 pm
Forum: Bismarck General Discussion
Topic: PoW's gunnery VS BSM's gunnery
Replies: 515
Views: 12510

Re: PoW's gunnery VS BSM's gunnery

In deference to Mr. Virtuani's comment, have made minor modifications to some previous postings. Please note that I can only delete what I feel to be inappropriate commentary, I cannot 'strike it through', so the commentary disappears completely. Sometimes I would rather retain it to serve as an exa...
by Bill Jurens
Mon Apr 01, 2019 4:04 am
Forum: Bismarck General Discussion
Topic: PoW's gunnery VS BSM's gunnery
Replies: 515
Views: 12510

Re: PoW's gunnery VS BSM's gunnery

I would still be interested in learning if anyone has actually found and examined the physical film of the Denmark Strait action, or if all analysis has been done via video transfers. If transferring has occurred, what guarantees might we have that accurate timing has been preserved?

Bill Jurens
by Bill Jurens
Sun Mar 31, 2019 5:33 pm
Forum: Bismarck General Discussion
Topic: PoW's gunnery VS BSM's gunnery
Replies: 515
Views: 12510

Re: PoW's gunnery VS BSM's gunnery

Trying to restore 'order in the court'... I assume, in rather broad terms, two proposals are being made, primarily championed by Mssrs. Bonomi and Virtuani. These are: a) That Mr. Bonomi's reconstruction of the Denmarck Strait action and associated timings, etc., though not perfect, are at least ess...
by Bill Jurens
Sun Mar 31, 2019 12:54 am
Forum: Bismarck General Discussion
Topic: PoW's gunnery VS BSM's gunnery
Replies: 515
Views: 12510

Re: PoW's gunnery VS BSM's gunnery

Mr. Bonomi wrote: "I just asked you to prevent intentional provocations and personal insults from a forum member to another forum member by this forum moderator. If there will be no intentional personal provocations, ... there will be no reactions." His point is well taken. There should be no intent...
by Bill Jurens
Sat Mar 30, 2019 11:43 pm
Forum: Bismarck General Discussion
Topic: PoW's gunnery VS BSM's gunnery
Replies: 515
Views: 12510

Re: PoW's gunnery VS BSM's gunnery

In deference to the tone of his most recent post, I have, with considerable regret, taken the unusual step of banning Mr. Bonomi from participation in this board for a 24 hour period. This is about the lightest practical penalty I can impose, and hope that this will help to restore at least a little...
by Bill Jurens
Sat Mar 30, 2019 9:50 pm
Forum: Bismarck General Discussion
Topic: PoW's gunnery VS BSM's gunnery
Replies: 515
Views: 12510

Re: PoW's gunnery VS BSM's gunnery

Mr. Bonomi: You are skating on thin ice here. I will not take the time to edit and redact your commentary (or anyone else's for that matter) on a routine basis. Please make some effort to phrase your comments in less-inflammatory and confrontational language. Your points seem to be: a) Other comment...