Search found 3259 matches

by Alberto Virtuani
Fri May 24, 2019 5:00 pm
Forum: Bismarck General Discussion
Topic: Hit on Bismarck's turret
Replies: 17
Views: 613

Re: Hit on Bismarck's turret

@all, I agree with Mr.Jurens possible explanation of what was seen from distance. This is possibly a way to explain why 2 turrets were put out of action together (possibly due to the flooding of the fore magazines following the penetration of a barbette/turret in order to avoid worse consequences), ...
by Alberto Virtuani
Fri May 24, 2019 10:10 am
Forum: Bismarck General Discussion
Topic: Hit on Bismarck's turret
Replies: 17
Views: 613

Re: Hit on Bismarck's turret

Hi Alec, looking at the KGV GAR and at the Rodney Salvo Plot, distance at 9:02 was already quite shorter than 20000 meters for both Rodney (around 17000-18000 yards, residual velocity slightly less than 500m/sec) and KGV (around 15000 yards, residual velocity 520 m/sec). This does not change much to...
by Alberto Virtuani
Wed May 22, 2019 4:54 pm
Forum: Bismarck General Discussion
Topic: On the Origins of Scaling
Replies: 13
Views: 302

Re: On the Origins of Scaling

Hi Thorsten,
thanks a lot for the explanation.

Bye, Alberto
by Alberto Virtuani
Wed May 22, 2019 9:41 am
Forum: Bismarck General Discussion
Topic: On the Origins of Scaling
Replies: 13
Views: 302

Re: On the Origins of Scaling

Hi Thorsten,
I can't read the legends in the picture. What is represented in "abscissa and ordinate" in the graph ?

What are the different curves representing ? (sorry for such "stupid" questions)


Bye, Alberto
by Alberto Virtuani
Wed May 22, 2019 7:13 am
Forum: Bismarck General Discussion
Topic: On the Origins of Scaling
Replies: 13
Views: 302

Re: On the Origins of Scaling

Hi Neil, many thanks again for your answers (and further patience....). Do you have any examples of shattering velocities for typical WWII shells? Does any formula exists to estimate the shattering velocity for a certain shell against armor based on calibre, final speed, weight, angle of impact, etc...
by Alberto Virtuani
Tue May 21, 2019 7:55 pm
Forum: Bismarck General Discussion
Topic: On the Origins of Scaling
Replies: 13
Views: 302

Re: On the Origins of Scaling

Hi Neil, you wrote: "Could you give a reference for that opinion you have read?" Unfortunately not, I remember I have read it on a forum, possibly on this same forum (or on the former Hood website forum)... Just to be 100% clear, my question was not about a 15" vs 8" comparison. It was more a 16" sl...
by Alberto Virtuani
Tue May 21, 2019 10:05 am
Forum: Bismarck General Discussion
Topic: On the Origins of Scaling
Replies: 13
Views: 302

Re: On the Origins of Scaling

Hi Neil, thanks for this very detailed explanation of "scaling" benefits vs shattering of a shell. I beg your pardon in advance if I ask a possibly stupid question, not having studied in detail the armor penetration theories. I have read that a smaller caliber shell needs less energy to penetrate th...
by Alberto Virtuani
Tue May 21, 2019 7:30 am
Forum: Bismarck General Discussion
Topic: Message Traffic heard by RODNEY 24 May 1941
Replies: 197
Views: 3425

Re: Message Traffic heard by RODNEY 24 May 1941

Hello everybody, "If everybody would follow this example it would solve the problem quickly" ...and I can only repeat that the absence of answer from such forum members is more than welcome by me ! I always answer to points raised in a fair way but I see that when without arguments (see examples: ht...
by Alberto Virtuani
Mon May 20, 2019 7:37 pm
Forum: Bismarck General Discussion
Topic: Message Traffic heard by RODNEY 24 May 1941
Replies: 197
Views: 3425

Re: Message Traffic heard by RODNEY 24 May 1941

Hello everybody,
Dunmunro wrote: [Commentary regarding Mr. Virtuani redacted WJJ]. Therefore while I will continue to contribute to the forum I will no longer respond to any of his posts."
[commentary redacted WJJ]


Bye, Alberto
by Alberto Virtuani
Mon May 20, 2019 5:47 pm
Forum: Bismarck General Discussion
Topic: Message Traffic heard by RODNEY 24 May 1941
Replies: 197
Views: 3425

Re: Message Traffic heard by RODNEY 24 May 1941

Hello everybody, Dunmunro wrote: "You are the one claiming that the ranges for the straddles are from ~16K to 12K yds" No, it's not me. It's the KGV GAR to say that, mentioning the 14 straddles within the 16000-12000 yards phase, as well as the 1.7 salvos/minute RoF.... here the GAR (http://www.kbis...
by Alberto Virtuani
Mon May 20, 2019 11:35 am
Forum: Bismarck General Discussion
Topic: Message Traffic heard by RODNEY 24 May 1941
Replies: 197
Views: 3425

Re: Message Traffic heard by RODNEY 24 May 1941

So, now the RoF of 1.7 salvos/minute are referred to 13 minutes, not to 20 as per KGV GAR ? Speculation, but, if true, then also the straddles are referred to 13 minutes only, according to your "free interpretation", leaving a gap beytween 8:53 and 9:00.... Just admit that the Patterson's narrative ...
by Alberto Virtuani
Mon May 20, 2019 9:41 am
Forum: Bismarck General Discussion
Topic: Message Traffic heard by RODNEY 24 May 1941
Replies: 197
Views: 3425

Re: Message Traffic heard by RODNEY 24 May 1941

No, once again (http://www.kbismarck.org/forum/viewtopic.php?f=1&t=8552&start=135#p83637) you are posting inaccurate info and references, [commentary redacted WJJ] Read Patterson's narrative of the action at pag 140,141 (that is not a gunnery report , see snapshot), then read the GAR (pag.144 and fo...
by Alberto Virtuani
Mon May 20, 2019 7:32 am
Forum: Bismarck General Discussion
Topic: Message Traffic heard by RODNEY 24 May 1941
Replies: 197
Views: 3425

Re: Message Traffic heard by RODNEY 24 May 1941

Hello everybody, is someone trying to find a "revenge" for the bad error made (http://www.kbismarck.org/forum/viewtopic.php?f=1&t=8552&start=135#p83637) ? A childish behavior IMO. Dunmunro wrote: "You have made a mistake here and appear to have misread the GAR...you have misread the GAR which itself...
by Alberto Virtuani
Sun May 19, 2019 9:45 pm
Forum: Bismarck General Discussion
Topic: Message Traffic heard by RODNEY 24 May 1941
Replies: 197
Views: 3425

Re: Message Traffic heard by RODNEY 24 May 1941

Excuses for posting wrong info (viewtopic.php?f=1&t=8552&start=135#p83637) ? None

Waste of time ? Again and again...

KGV_GAR.jpg
KGV_GAR.jpg (28.18 KiB) Viewed 139 times

and now, double excuses are strongly required....
by Alberto Virtuani
Sun May 19, 2019 9:38 pm
Forum: Bismarck General Discussion
Topic: Message Traffic heard by RODNEY 24 May 1941
Replies: 197
Views: 3425

Re: Message Traffic heard by RODNEY 24 May 1941

KGV GAR.... You know it very well...

Now, excuses please for having posted incorrect information (viewtopic.php?f=1&t=8552&start=135#p83637) !