Search found 669 matches

by Thorsten Wahl
Tue Sep 04, 2018 1:10 pm
Forum: Bismarck General Discussion
Topic: Bismarck firing procedures at DS
Replies: 616
Views: 44965

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: 85
Views: 2974

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: 9
Views: 845

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: 9
Views: 845

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: 9
Views: 845

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
Mon Jul 16, 2018 8:46 am
Forum: Naval Technology
Topic: Scharnhorst Class Specs: Armor Thickness
Replies: 14
Views: 3703

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 1755 times
by Thorsten Wahl
Mon Jul 16, 2018 8:40 am
Forum: Naval Technology
Topic: British v German rangefinders
Replies: 82
Views: 33606

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: 4363

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: 589
Views: 32838

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.
by Thorsten Wahl
Fri Jun 29, 2018 9:40 am
Forum: Bismarck General Discussion
Topic: Jasper, Schmalenbach and 6 salvos...
Replies: 589
Views: 32838

Re: Jasper, Schmalenbach and 6 salvos...

Few little things regarding reliability of timing of PoW -- My problems with wording and timing POW 05:37 Enemy sighted range 38000 Yard The rangefinders failed to develop a satisfactory range plot before opening fire KTB PG enemy sighted at 05:50 at 30 km obviously an excellent performance on the b...
by Thorsten Wahl
Thu Jun 28, 2018 4:23 pm
Forum: Bismarck General Discussion
Topic: Jasper, Schmalenbach and 6 salvos...
Replies: 589
Views: 32838

Re: Jasper, Schmalenbach and 6 salvos...

I see what you are saying and meaning. Whether report for the time says north westerly winds - force 4 (means 5-7,9 m/s) this is almost right angle to the course of the ship once a puff of smoke is released and lost ist initial propagation velocity, hes driving with the wind 10 seconds after shoting...
by Thorsten Wahl
Thu Jun 28, 2018 1:33 pm
Forum: Naval Technology
Topic: Hitting the Gun Barrel
Replies: 9
Views: 2269

Re: Hitting the Gun Barrel

they produce a indentation.
If memory serves this happened to Seydlitz during the Jutland battle 1916.
by Thorsten Wahl
Thu Jun 28, 2018 1:26 pm
Forum: Bismarck General Discussion
Topic: Jasper, Schmalenbach and 6 salvos...
Replies: 589
Views: 32838

Re: Jasper, Schmalenbach and 6 salvos...

I suggest you to carefully look at all the other photos of the German squadron during the battle and at the very famous Schmitz-Westerholt paint of the salvo that sunk the Hood in order to realize how the main guns smoke was leaving the warships behind them, 210 kg RPC 38 nominally produce about 20...
by Thorsten Wahl
Thu Jun 28, 2018 12:46 pm
Forum: Bismarck General Discussion
Topic: Jasper, Schmalenbach and 6 salvos...
Replies: 589
Views: 32838

Re: Jasper, Schmalenbach and 6 salvos...

oh my fault 290 hm = Feuereröffnung british ships thx -----nevertheless completely incomprehensive for the timing if distance at 5.50 = 30 km given the approach velocity of 1450 m/min 290 hm should be reached within less then one minute but the 3 mins from KTB give us about 4,35 km distance shorteni...