Search found 751 matches

by Thorsten Wahl
Fri Jul 10, 2020 9:44 pm
Forum: Hypothetical Naval Scenarios
Topic: Vanguard vs. Iowa?
Replies: 28
Views: 9707

Re: Vanguard vs. Iowa?

I had the same problem several times.
It does me not prevent from writing.
by Thorsten Wahl
Fri Jul 10, 2020 9:40 pm
Forum: Hypothetical Naval Scenarios
Topic: Bismarck and Prinz Eugen vs Pennsylvania and West Virginia (Post PH refits)
Replies: 12
Views: 538

Re: Bismarck and Prinz Eugen vs Pennsylvania and West Virginia (Post PH refits)

The whole German F/C system was 1940s state-of-the-art and Hood or any other unmodernised WWI ship would be lucky to stand much of a chance at WWII big-gun range Any ~15 " ~35kton Battleship is able to defeat a single Battleship of roughly the same size regardless of a ww1 or ww2 ship, depending on...
by Thorsten Wahl
Fri Jul 10, 2020 8:30 pm
Forum: Hypothetical Naval Scenarios
Topic: Bismarck and Prinz Eugen vs Pennsylvania and West Virginia (Post PH refits)
Replies: 12
Views: 538

Re: Bismarck and Prinz Eugen vs Pennsylvania and West Virginia (Post PH refits)

These ships were actually designed in a more forward thinking manner than other WW1 era ships. The USN designers predicted that battle ranges would significantly increase as guns got bigger, more powerful, and longer ranged Do you have a source Viel Glück beim suchen. The USN considered 18 -20 kyar...
by Thorsten Wahl
Fri Jul 10, 2020 5:57 pm
Forum: Hypothetical Naval Scenarios
Topic: Bismarck and Prinz Eugen vs Pennsylvania and West Virginia (Post PH refits)
Replies: 12
Views: 538

Re: Bismarck and Prinz Eugen vs Pennsylvania and West Virginia (Post PH refits)

In 1941 there was no war between Germany and the United States. The german ships had the order to avoid any unfriendly action until the other opens fire.... a lot of the flaws Bismarck had. (Like running important power lines over the citadel or lightly protected turrets Powerlines were under the ma...
by Thorsten Wahl
Mon Jun 29, 2020 10:06 pm
Forum: Naval History (1922-1945)
Topic: US Battleships
Replies: 8
Views: 253

Re: US Battleships

USBattleships protection characteristics https://attachment.tapatalk-cdn.com/15085/201808/6067558_d90910bc0de9f529d3368f47726b9a2b.pdf?Expires=1593553341&Signature=fwSV1YKFyJSPwscoTan9mA2B1nJznIBAnklhfLcuvpSS~oTHMXare8OSKZX7CACOs3m4ygtrafoVcpajVIBmcWyT5W9CXcvkTYySZgeNdJ1i~pm~qg9Mt0vBAk45iHAYATbCKzaI...
by Thorsten Wahl
Fri May 29, 2020 9:25 am
Forum: Naval Technology
Topic: Nagato protection
Replies: 38
Views: 1226

Re: Nagato protection

Okun's rule of thumb is to take the effective thickness of a laminated plate as .7 x the thinnest plate + the full thickness of the thicker plate.
the .7 number was taken from Navy Depatment Bureau of Ships
by Thorsten Wahl
Tue May 26, 2020 4:34 pm
Forum: Naval Technology
Topic: Nagato protection
Replies: 38
Views: 1226

Re: Nagato protection

Dave Saxton wrote:
Tue May 26, 2020 4:00 pm
I also have primary documentation on ST52 and D Steel

see my post Thorsten Wahl » Mon May 25, 2020 8:47 am
by Thorsten Wahl
Tue May 26, 2020 11:35 am
Forum: Naval Technology
Topic: Nagato protection
Replies: 38
Views: 1226

Re: Nagato protection


Like all designs we have to examine the entire protective scheme, especially as we accumulate more knowledge of AP shell and AP bomb penetration.
Agree.
by Thorsten Wahl
Tue May 26, 2020 9:47 am
Forum: Naval Technology
Topic: Nagato protection
Replies: 38
Views: 1226

Re: Nagato protection

This is from an RN study comparing KGV and Tirpitz's magazine protection: to be exact it#s from C.B. 04039 (2) (20 th July 1942) Addendum No 2 to C.B. 04039 ARMOUR Protection, 1939. For both armor schemes the britsh recommendations left out the upper deck as having any protective effect. In the ger...
by Thorsten Wahl
Tue May 26, 2020 9:25 am
Forum: Naval Technology
Topic: Nagato protection
Replies: 38
Views: 1226

Re: Nagato protection

Strangely, despite her weather deck's supposed decapping ability, the KM concluded that the RN 15in could penetrate it over the machinery from about 21k yds and over the magazines from about 27k yds. Against ships with the british 15" gun the KM considered a battledistance of 12 - 18 km as optimal ...
by Thorsten Wahl
Mon May 25, 2020 11:33 am
Forum: Naval Technology
Topic: Nagato protection
Replies: 38
Views: 1226

Re: Nagato protection

http://www.kbismarck.org/forum/download/file.php?id=3734 As i said in my earlier reply imperial Elongation is different from DIN-Dehnung (5) Using the same specimen as imperial measurings the 18% "Mindest" Dehnung(5) translates into about 24% Elongation or "as you dont want" ;) 33% according to the...
by Thorsten Wahl
Mon May 25, 2020 8:47 am
Forum: Naval Technology
Topic: Nagato protection
Replies: 38
Views: 1226

Re: Nagato protection

the upper deck on american Battleships was made of STS (sample Iowa class) https://lh3.googleusercontent.com/RzzIg_7vJZubgsiJ8dsD4WEuF7HGOWvXdWJ-kw_Zslof_RShrxIzQJK9EmDUYFuQ2QvDdbBOQy5poyzeCu0JLBobPb3CPN0VaRPKxtKRT0CnYfaoDXJAssAXJJCvnsQKE7izU7B-Qo1hrxNsIrnVtaBh6g8P9dt0ROAo52pvqS3Zgxzl753P1jm6-cPymRH...
by Thorsten Wahl
Mon Apr 27, 2020 8:44 am
Forum: Naval Weapons
Topic: Size of ships and their guns
Replies: 6
Views: 347

Re: Size of ships and their guns

proposed gun caliber for H42 ff. would be 45 cm(C42h) or 50 cm(C42i) guns
Range at 40° Elevation near 50 km. So these guns were'nt practically usable for a considerable part of the possible range.

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