Search found 679 matches

by Thorsten Wahl
Mon Nov 12, 2018 11:43 am
Forum: Hypothetical Naval Scenarios
Topic: Richelieu and Jean Bart
Replies: 30
Views: 581

Re: Richelieu and Jean Bart

I think to remember that on "Scharnhorst"'s triple turrets (whose guns were fired usually within the same salvo) the central gun fired first, followed (within 10 to 20 milliseconds delay) by the lateral ones. I don't know whether delay coils were implemented on Bismarck's too. Bye, Alberto Delay co...
by Thorsten Wahl
Wed Nov 07, 2018 2:35 pm
Forum: Bismarck General Discussion
Topic: Bismarck's armor against long range hits
Replies: 10
Views: 313

Re: Bismarck's armor against long range hits

No detailed Information about the real thicknesses is given in the report, Ist my conclusion as usually the "weakest point" is considered in general assumptions ------------------------------------------------------------------------------------------------------------ regarding the 8 cm wheather de...
by Thorsten Wahl
Wed Nov 07, 2018 8:30 am
Forum: Bismarck General Discussion
Topic: Bismarck's armor against long range hits
Replies: 10
Views: 313

Re: Bismarck's armor against long range hits

for a start the cited Textband Unterlagen zur Bestimmung der Hauptkampfentfernung und Geschosswahl -W Hurlich spaced Armor http://www.dtic.mil/docs/citations/ADA954865 --------------------------------------------------------- SUPP 22-68 SPACED ARMOUR.jpg The problem of increased deck protection was ...
by Thorsten Wahl
Mon Nov 05, 2018 2:06 pm
Forum: Bismarck General Discussion
Topic: 38 cm shells
Replies: 56
Views: 16890

Re: 38 cm shells

its the same.

but sometimes if you use muzzle energy, it may be confound with muzzle velocity and
weight of propellant charge is more intuitive to energy I would say.
by Thorsten Wahl
Mon Nov 05, 2018 1:02 pm
Forum: Bismarck General Discussion
Topic: Bismarck's armor against long range hits
Replies: 10
Views: 313

Re: Bismarck's armor against long range hits

aggree with @Bill Jurens small addition a Basic overview on the philosophy of german ballistic protection can be found in the "Unterlagen zur Bestimmung der Hauptkampfentfernung und Geschosswahl Heft a Textband" "Recomendations for determining the main combat distance and projectile selection, textu...
by Thorsten Wahl
Tue Oct 30, 2018 3:14 pm
Forum: Bismarck General Discussion
Topic: Bismarck construction flaws
Replies: 384
Views: 109555

Re: Bismarck construction flaws

In this case, the angle of fall indeed appears to be about 19 degrees, but the projectile is shown in plan (why are the views not aligned?) as approaching from 40 degrees forward of the bow. A bit of mathematical (or geometric) manipulation, which I will not go into in great detail here, indicates ...
by Thorsten Wahl
Wed Oct 24, 2018 1:02 pm
Forum: Bismarck General Discussion
Topic: Bismarck construction flaws
Replies: 384
Views: 109555

Re: Bismarck construction flaws

There may be some confusion here from the DS battle, where one of the three hits by POW did penetrate a boiler room, where five stokers suffered serious scald wounds. The shell dived under the belt approximately in this way and detonated in the proximity of the torpedobulkhead -blue -E-werk out of ...
by Thorsten Wahl
Tue Oct 16, 2018 9:01 am
Forum: Bismarck General Discussion
Topic: Hits on PoW and Bismarck
Replies: 284
Views: 5802

Re: Hits on PoW and Bismarck

I made also a visualisation of the E-Werk hit uncertainty of UW trajectiory has to be observed. projectile probably hit the static wave trough generated by shipmovement the 12,5 m distance is determined by the likely arming distance for the british fuze as the projectile detonated at contact with th...
by Thorsten Wahl
Tue Oct 16, 2018 7:41 am
Forum: Bismarck General Discussion
Topic: Hits on PoW and Bismarck
Replies: 284
Views: 5802

Re: Hits on PoW and Bismarck

More importantly, there was a loss of more than 1000 tons of precious fuel. Fuel tanks had been contaminated by seawater, and the fuel distribution system forward had been seriously damaged. the projectile obviously damaged all watertight walls on its way through the ship my conclusion from descrip...
by Thorsten Wahl
Mon Oct 08, 2018 10:31 am
Forum: Hypothetical Naval Scenarios
Topic: Yamato Instead of Kirishima 13th Nov 1942
Replies: 22
Views: 6775

Re: Yamato Instead of Kirishima 13th Nov 1942

My take is the Japanese had better observation of the destroyers and targeted them, leaving the two BB outside the clusters of torpedo tracks. The Japanese were 100% dependent of visual observation and the slightly closer destroyers may have been clearly identified first, leading to them as the aim...
by Thorsten Wahl
Tue Sep 04, 2018 1:10 pm
Forum: Bismarck General Discussion
Topic: Bismarck firing procedures at DS
Replies: 968
Views: 53083

Re: Bismarck firing procedures at DS

Regarding the POW salvo plot
this chart contains distances, but these distances are not the distance as measured by the rangefinders, but the distance of the expected shell travel from the firing solution.
by Thorsten Wahl
Tue Aug 28, 2018 8:26 am
Forum: Hypothetical Naval Scenarios
Topic: What if Bismarck hit Rodney early on?
Replies: 87
Views: 3538

Re: What if Bismarck hit Rodney early on?

So Campbell's account said that Bismarck's 3rd salvo from the fore turrets, just before Rodney obtained 1-2 hit(s) on them to take them out of action achieved a 'perfect straddle' with shells landing, fore, aft and to both sides. In short, he seems to have described the shells as almost hitting but...
by Thorsten Wahl
Thu Jul 26, 2018 7:32 pm
Forum: Hypothetical Naval Scenarios
Topic: Scharnhorst w/ 38cm's and other improvements
Replies: 13
Views: 1190

Re: Scharnhorst w/ 38cm's and other improvements

its my opinion that decapping was a new feature to the Kriegsmarine in 1935/36 but well established in about 1938/39.

I could find a armor schemes for H-Class and also for P class cruisers using a decapping plate + main FH armor plate for vertical protection.
by Thorsten Wahl
Thu Jul 26, 2018 9:27 am
Forum: Hypothetical Naval Scenarios
Topic: Scharnhorst w/ 38cm's and other improvements
Replies: 13
Views: 1190

Re: Scharnhorst w/ 38cm's and other improvements

One wonders where the 350mm number comes from if not original docs (alternate version?). From Erich Gröner "Die deutschen Kriegsschiffe 1815-1945". During WW2 he was responsible for type recognition foreign marines. In a early stadium of construction 350 mm was primarily choosen. But weight restric...
by Thorsten Wahl
Wed Jul 25, 2018 10:21 pm
Forum: Hypothetical Naval Scenarios
Topic: Scharnhorst w/ 38cm's and other improvements
Replies: 13
Views: 1190

Re: Scharnhorst w/ 38cm's and other improvements

Simply wrong sorry http://www.kbismarck.org/forum/viewtopic.php?f=13&t=8257 http://forum-marinearchiv.de/coppermine/albums/userpics/11899/Unterlagen%20und%20Richtlinien%20zur%20Bestimmung%20der%20Hauptkampfentfernung%20und%20der%20Gescho%C3%9Fwahl%20Heft%20g%20Schlachtschiffe%20Gn%20Sch.PDF I believ...