Search found 785 matches

by Thorsten Wahl
Sat Jul 24, 2021 5:27 pm
Forum: Naval Technology
Topic: Armour Metallurgy Properities
Replies: 3
Views: 183

Re: Armour Metallurgy Properities

Only WW2
by Thorsten Wahl
Sun Jul 18, 2021 11:16 am
Forum: Naval Technology
Topic: Armour Metallurgy Properities
Replies: 3
Views: 183

Re: Armour Metallurgy Properities

German naval plates 20210718_125808.jpg German Dehnung%(DIN) is not Elongation% used in US (imperial) terminology. (Lenght thickness ratios of specimen are different). And non naval plates( even very thick ones) may have the same composition but different physical properties. They were ballistically...
by Thorsten Wahl
Tue Jul 13, 2021 2:13 pm
Forum: Bismarck General Discussion
Topic: Crew indulgences near the end
Replies: 4
Views: 618

Re: Crew indulgences near the end

I suspect the crew men received Pervitin.

https://en.wikipedia.org/wiki/Methamphetamine
by Thorsten Wahl
Mon Jul 05, 2021 4:34 pm
Forum: Hypothetical Naval Scenarios
Topic: Graf Spee comes out
Replies: 3
Views: 199

Re: Graf Spee comes out

For Admiral Graf Spee
by Thorsten Wahl
Fri Jul 02, 2021 11:36 am
Forum: Hypothetical Naval Scenarios
Topic: Graf Spee comes out
Replies: 3
Views: 199

Re: Graf Spee comes out

Recommended battle distance 19 -25 km.
Own target angle 30-40 degrees.
Decisive effect of own weapons possible.
by Thorsten Wahl
Mon May 10, 2021 9:52 am
Forum: Naval Weapons
Topic: Plunging fire
Replies: 22
Views: 19273

Re: Plunging fire

With regard to the splitted arrangement. Not every splitted arrangement of deck protection may reach the same or better results of ballistic protection as a single plate of same total thickness. British ballistic research gave requirements for the positive case 1) detachment of armor piercing cap (A...
by Thorsten Wahl
Mon May 10, 2021 7:37 am
Forum: Naval Weapons
Topic: Plunging fire
Replies: 22
Views: 19273

Re: Plunging fire

The test was obviously done with 40,6 cm /1030 kg APC (Psgr) as the AOf data is only conform with the 40,6 cm projectile (the 38 cm projectiles reach 27 degrees AOF at about 27 km) Which was the range (if any) under which the belt/slope combination could be defeated according to these tests ? test a...
by Thorsten Wahl
Mon May 10, 2021 6:44 am
Forum: Naval Weapons
Topic: Plunging fire
Replies: 22
Views: 19273

Re: Plunging fire

In the context of the evaluation of the horizontal protection "Battleship H", fears were expressed, that the horizontal protection consisting of a 50 mm upper deck and 100 mm armored deck could already penetrated at angles of fall of 15 ° - 25 ° (corresponding to a distance of at least around 20 km)...
by Thorsten Wahl
Sun Apr 18, 2021 12:19 pm
Forum: Bismarck General Discussion
Topic: bismark-after torpedo hit
Replies: 203
Views: 14133

Re: bismark-after torpedo hit

Given the informations we have from the last battle, the behavior of the ship at given certain wind conditions(without using rudder) and a considerable ruddereffect by the remains of the rudders, the ship had only limited steering abilities agains t the main wind/wave direction by changing individua...
by Thorsten Wahl
Sun Apr 11, 2021 5:40 pm
Forum: Bismarck General Discussion
Topic: bismark-after torpedo hit
Replies: 203
Views: 14133

Re: bismark-after torpedo hit

double post
by Thorsten Wahl
Sun Apr 11, 2021 2:37 pm
Forum: Bismarck General Discussion
Topic: bismark-after torpedo hit
Replies: 203
Views: 14133

Re: bismark-after torpedo hit

The astern turbines on board Bismarck were rated for 190 shaft RPM at the cost of full power steam consumption.

270 shaft RPM forward were good for ~30kn.
by Thorsten Wahl
Sun Apr 11, 2021 2:37 pm
Forum: Bismarck General Discussion
Topic: bismark-after torpedo hit
Replies: 203
Views: 14133

Re: bismark-after torpedo hit

The astern turbines on board Bismarck were rated for 190 shaft RPM at the cost of full power steam consumption.

270 shaft RPM forward were good for ~30kn.
by Thorsten Wahl
Wed Apr 07, 2021 6:38 am
Forum: Bismarck General Discussion
Topic: bismark-after torpedo hit
Replies: 203
Views: 14133

Re: bismark-after torpedo hit

M.R. s account is valuable as he exists. It gives unse some overview about the ship from a "resident". But in its reliability it appears sometimes as questionable. He was POW for a longer time, then he was on board Bismarck. It had been a also very long time until he wrote his book and seemingly the...
by Thorsten Wahl
Sat Apr 03, 2021 12:20 pm
Forum: Bismarck General Discussion
Topic: Was the battleship Bismarck really the best of its time?
Replies: 4
Views: 419

Re: Was the battleship Bismarck really the best of its time?

From own post Warships are complex machines. There are numerous variables and relationships that may affect the outcome of a battle. Influence of random events is far too great, to predict the outcome of one particular battle. And in realtiy it appears possible that even a weaker appearing ship may ...