Search found 734 matches

by Thorsten Wahl
Tue Oct 30, 2018 3:14 pm
Forum: Bismarck General Discussion
Topic: Bismarck construction flaws
Replies: 396
Views: 152888

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: 396
Views: 152888

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: 25267

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: 25267

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: 10883

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: 86556

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: 12490

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: 37
Views: 7750

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: 37
Views: 7750

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: 37
Views: 7750

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...
by Thorsten Wahl
Wed Jul 25, 2018 9:48 pm
Forum: Hypothetical Naval Scenarios
Topic: Scharnhorst w/ 38cm's and other improvements
Replies: 37
Views: 7750

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

Scharnhorst had 320 mm belt.
by Thorsten Wahl
Mon Jul 16, 2018 8:46 am
Forum: Naval Technology
Topic: Scharnhorst Class Specs: Armor Thickness
Replies: 16
Views: 8840

Re: Scharnhorst Class Specs: Armor Thickness

Scharnhorst official drawing
RM 20/1913
Allgemeine Typfragen für Schlachtschiffe, Panzerschiffe und Kreuzer 10.02.1939-11.12.1939
Scharnhorst - Gneisenau"
Gewichte abgerundete und zwischen beiden Schiffen gemittelte Zahlen.
B.Nr. A V 309 /39 Gkdos vom 3./5. Mai 1939
Panzerdicken Scharnhorst2.jpg
Panzerdicken Scharnhorst2.jpg (119.99 KiB) Viewed 6588 times
by Thorsten Wahl
Mon Jul 16, 2018 8:40 am
Forum: Naval Technology
Topic: British v German rangefinders
Replies: 82
Views: 45856

Re: British v German rangefinders

for Germany the optical rangefinders at least on the capital ships were triaxially stabilised. A feature wich was recommended by NavTecMisEur also for use on american ships.
by Thorsten Wahl
Tue Jul 10, 2018 12:29 pm
Forum: Hypothetical Naval Scenarios
Topic: Battleship for Freedonia
Replies: 26
Views: 8980

Re: Battleship for Freedonia

Weapon how about a 38 cm SK C/34 with 865 m/s and elevation 35 dgrees from a early design study. Range about 42,5 km Flightime 85 sek impact velocity ~500 m/s at 20 km the shell should be about 25 m/s faster then the Vo 820m/s Version. and somwhat mm more penetration versus vertical armor plate (~44...
by Thorsten Wahl
Fri Jun 29, 2018 7:07 pm
Forum: Bismarck General Discussion
Topic: Jasper, Schmalenbach and 6 salvos...
Replies: 596
Views: 54557

Re: Jasper, Schmalenbach and 6 salvos...

Antonio Bonomi wrote:
Thu Jun 28, 2018 2:00 pm
Hello everybody,

@ Thorsten Wahl,


Prinz_Eugen_aft_turret_firing.jpg



Bye Antonio
Turret D is trained nearly 90 degrees it should be about 45 degrees forward to fit the early time.