Search found 771 matches

by Thorsten Wahl
Wed Mar 03, 2010 8:12 pm
Forum: Hypothetical Naval Scenarios
Topic: 15in Up Gunned Gneisenau v 1939 Modernized Renown
Replies: 141
Views: 14978

Re: 15in Up Gunned Gneisenau v 1939 Modernized Renown

Im sorry its a little bit off. http://www.navweaps.com/index_nathan/Penetration_Germany.htm Im a little bit confused about the results facehard give us According the given penetration tables from the link for german facehardened armor it seems the SK 38 is better in belt penetration at any range com...
by Thorsten Wahl
Wed Mar 03, 2010 5:24 pm
Forum: Naval Technology
Topic: KGV article on wikipedia
Replies: 57
Views: 10903

Re: KGV article on wikipedia

The total width of KGV's SPS abreast the forward engine room is ~16 ft. NC's TDS width is ~18ft at approximately the same area. Bismarck has about 19ft of width, yet Bismarck has the lowest rated SPS in terms of charge weight. Clearly, design is important, not just width. You dont know how much com...
by Thorsten Wahl
Wed Mar 03, 2010 4:48 pm
Forum: Hypothetical Naval Scenarios
Topic: 15in Up Gunned Gneisenau v 1939 Modernized Renown
Replies: 141
Views: 14978

Re: 15in Up Gunned Gneisenau v 1939 Modernized Renown

Yaw always seems to be the "magic bullet" when defending German armor schemes. Do we really have any idea how much effect this has? We know that a 2" deck actually deflects a shell toward the normal, which helps it penetrate a succeeding deck. How much yaw is induced and in what direction? How migh...
by Thorsten Wahl
Mon Mar 01, 2010 3:16 pm
Forum: Hypothetical Naval Scenarios
Topic: 15in Up Gunned Gneisenau v 1939 Modernized Renown
Replies: 141
Views: 14978

Re: 15in Up Gunned Gneisenau v 1939 Modernized Renown

Here are some official british Armour Efficiency drawsheets http://picasaweb.google.com/urudofsky/ArmourEfficiencyTirpitzVsKGVNelsonQE02# http://www.admirals.org.uk/records/adm/adm1/adm1-9387.php They offer another sight then the german material Against own horizontal armor there is good agreement t...
by Thorsten Wahl
Sun Feb 28, 2010 5:35 pm
Forum: Hypothetical Naval Scenarios
Topic: 15in Up Gunned Gneisenau v 1939 Modernized Renown
Replies: 141
Views: 14978

Re: 15in Up Gunned Gneisenau v 1939 Modernized Renown

As far as I know, Okun used primary data to compare with his tables, and they agree pretty closely. Can you show us where the German primary data is? here is the piece Image2.jpg If you are correct, it isn't hard to imagine what the US Mark 7 projectile would do against Bismarck's deck. Rounder nos...
by Thorsten Wahl
Sun Feb 28, 2010 1:22 pm
Forum: Hypothetical Naval Scenarios
Topic: 15in Up Gunned Gneisenau v 1939 Modernized Renown
Replies: 141
Views: 14978

Re: 15in Up Gunned Gneisenau v 1939 Modernized Renown

Renown has 4" + 1" of D steel deck armour over the magazines and about 3.5" over the machinery, but the armour is layered and there are thinner decks above the MAD. There is a 2.5" turtle deck behind the 9" main belt which is also inclined about 12 degrees. Thanks for the additional information. 12...
by Thorsten Wahl
Sat Feb 27, 2010 9:24 pm
Forum: Hypothetical Naval Scenarios
Topic: 15in Up Gunned Gneisenau v 1939 Modernized Renown
Replies: 141
Views: 14978

Re: 15in Up Gunned Gneisenau v 1939 Modernized Renown

What thicknesses of armor does HMS Renown had after modernisation maximum thickness at deck 2x2" = 4" ~ 102 mm? Belt 9" 229 mm Barbettes 9" 229mm if is this is correct the german SK 38 gun may penetrate belt and barbettes at every distance less then 35 km deck is save until 22 km if you take 51 mm +...
by Thorsten Wahl
Fri Feb 26, 2010 8:56 pm
Forum: Hypothetical Naval Scenarios
Topic: 15in Up Gunned Gneisenau v 1939 Modernized Renown
Replies: 141
Views: 14978

Re: 15in Up Gunned Gneisenau v 1939 Modernized Renown

This is not a thread Scharnhorst against any other battleship. Using killerarguments when a discussion is not going on a favorable direction of the own opinion is some kind of annoying. The Scharnhorst Class was not designed to compete with every battleship around the world. The RN and USN Ships wer...
by Thorsten Wahl
Thu Feb 25, 2010 7:54 pm
Forum: Naval Technology
Topic: KGV article on wikipedia
Replies: 57
Views: 10903

Re: KGV article on wikipedia

I could ask a friend from the UK for a cost estimate like this recently we made a inquiry at Kew with2 friends of the German Forum Marinearchiv at least we decide to purchase the ninty pound piece SUPP 6/910 http://forum-marinearchiv.de/smf/index.php/topic,11377.msg126639.html#msg126639 DEFE 15/474 ...
by Thorsten Wahl
Wed Feb 24, 2010 8:14 pm
Forum: Naval Technology
Topic: KGV article on wikipedia
Replies: 57
Views: 10903

Re: KGV article on wikipedia

@ dunmunro
Did you have an report about Job 74 or even some secondary material
I read about the report only at Middlebrook Mahoney "Battleships" but it was without description in depth
did the Ark Royal use the same TDSdesign tested by job 74

Thank you
by Thorsten Wahl
Sun Feb 21, 2010 7:24 pm
Forum: Naval Technology
Topic: KGV article on wikipedia
Replies: 57
Views: 10903

TDS Bismarck

Damage analysis of ww1 torpedo and mine hits on german ships and excessive testing reveal that the problems of underwater explosions mostly didnt come from the explosionforce itself but more from high speed fragments of the outer hull and other metal parts. So the german conclusion was to put the ma...
by Thorsten Wahl
Sun Feb 21, 2010 5:30 pm
Forum: The Wreck of the Bismarck
Topic: Any Research on the Fate of the Wreck of the Bismarck?
Replies: 24
Views: 19101

Re: Any Research on the Fate of the Wreck of the Bismarck?

St 52 slightly corrections St 52 is according DIN a high-strenght non-alloyed steel Contents C - 0,17% +-0,03% Si - 0,45% +-0,15% Mn - 1,15% +-0,25% Copper content was max 0,55% but this content was deleted from the original Kriegsmarinenorm at around Okt 1943 post war metallurgical literatur states...
by Thorsten Wahl
Fri Feb 12, 2010 8:11 pm
Forum: Bismarck General Discussion
Topic: Bismarck Speed
Replies: 624
Views: 56413

Re: Bismarck Speed

Scharnhorst had spent roughly 50% of her living time in port mostly because of machinery problems
by Thorsten Wahl
Thu Feb 11, 2010 7:23 am
Forum: Bismarck General Discussion
Topic: Bismarck Paint storage
Replies: 23
Views: 6575

Re: Bismarck Paint storage

weight S IV Malerwerkstatt (Paintshop) 220 t
by Thorsten Wahl
Sun Feb 07, 2010 8:14 pm
Forum: Bismarck General Discussion
Topic: Bismarck Speed
Replies: 624
Views: 56413

Re: Speed - Bismarck versus Scharnhorst/Gneisenau

According Report
Chef Hauptamt Kriegsschiffbau Fuchs
K/K III A Nr. 231/41 g.Kdos. Vergleich zwischen "Richelieu" und "Bismarck"
page 3
Bismarck
Constr. Speed 28,0 kn
achieved Speed 30,6 kn
(where and when are unknown)