Search found 734 matches

by Thorsten Wahl
Mon Mar 11, 2019 11:24 am
Forum: Bismarck General Discussion
Topic: Target data
Replies: 16
Views: 1341

Re: Target data

Nice reference from Thorsten too. Wonder how they knew black line "true" distance? Were both ships running on surveyed-in railway lines for instance? both ships were observed by shore "Langbasisgeräte". Accuracy of the Langbasisgeräte was significantly better then the usual range measuring devices ...
by Thorsten Wahl
Mon Mar 11, 2019 11:11 am
Forum: Bismarck General Discussion
Topic: Target data
Replies: 16
Views: 1341

Re: Target data

Do you know what xx-Facher means? If I understand correctly the atleast one of the ships are moving according to the first document, any info on how fast they were steaming? Kind regards, Daniel xx-facher the 10 m RuM's(rangefinders) had 18 - 50 fold magnification only two ships Admiral Graf Spee(m...
by Thorsten Wahl
Fri Mar 08, 2019 10:19 am
Forum: Bismarck General Discussion
Topic: Target data
Replies: 16
Views: 1341

Re: Target data

from earlier posts accuracy of optical measuring against target ship black line true distance dotted black line average from all measuring units coloured lines individual measuring units. using funkmess improves accuracy to about +-50 m for "Entfernung fein" for Fumo 26/27 even under bad visibility ...
by Thorsten Wahl
Tue Feb 19, 2019 3:08 pm
Forum: Naval Propulsion
Topic: Bismarck Alternate Propulsion
Replies: 44
Views: 24044

Re: Bismarck Alternate Propulsion

... So maybe a Bismarck-heavy ship, longer and thinner (30m maybe?), with 2x4x35/38cm in order to fit (and save weight) 16x12MZu42/58 large diesels on 4 shafts for 144.000hp? With triple 15cm superfiring over the main turrets achieving the same 6x15cm broadside as IRL. Hopefully 30kts might be achi...
by Thorsten Wahl
Mon Jan 28, 2019 9:40 am
Forum: Bismarck General Discussion
Topic: Bismarck construction flaws
Replies: 396
Views: 152922

Re: Bismarck construction flaws

95mm is more incline to bend instead of spalling I think. to be precise MAD over magazines 100 mm (scarps 120 mm) Wh (Zeichnung Panzerabwicklung „Schlachtschiff F“ gültig für Panzerdicken, im Laufe des Baues geändert, Geheime Kommandosache) German homogenous armor plates possibly from from Tirpitz ...
by Thorsten Wahl
Mon Jan 21, 2019 2:40 pm
Forum: Bismarck General Discussion
Topic: Bismarck's armor against long range hits
Replies: 18
Views: 4306

Re: Bismarck's armor against long range hits

1) against 50 mm + 80 mm ther were several perforations on Scharnhorst(La Pallice) and Tirpitz (Tungsten)but no detonations the double impact on wheather deck and main armor deck obviously rendered all fuzes from 1600 lb armor piercing bombs into duds. 2) against 50 mm + 110 mm all bombs that hit br...
by Thorsten Wahl
Thu Jan 17, 2019 3:37 pm
Forum: Bismarck General Discussion
Topic: Bismarck construction flaws
Replies: 396
Views: 152922

Re: Bismarck construction flaws

I always wonder the slop portion of bismarck's turrets is weard. Is it too light for 180mm at such an important place? whats the distance you expect a penetration. the forward 180 mm slope had a projected hitable area of maybe about 100 m² at 10 km. for Bismarcks guns the 50% zone of impacts at 10 ...
by Thorsten Wahl
Mon Dec 10, 2018 1:58 pm
Forum: Hypothetical Naval Scenarios
Topic: Richelieu and Jean Bart
Replies: 49
Views: 10406

Re: Richelieu and Jean Bart

to small compare http://theminiaturespage.com/boards/msg.mv?id=466054 http://p0.storage.canalblog.com/03/95/399668/105107811_o.jpg https://digilander.libero.it/shinano/sitocorazzate/GranBretagna/Hood/history.htm Bomb splashes ? https://digilander.libero.it/shinano/sitocorazzate/GranBretagna/Hood/FOT...
by Thorsten Wahl
Tue Nov 20, 2018 1:36 pm
Forum: Hypothetical Naval Scenarios
Topic: Richelieu and Jean Bart
Replies: 49
Views: 10406

Re: Richelieu and Jean Bart

Decapping would obviously increase resistance, but by how much I'm not sure - so I'm not really sure how to judge it against against a single-thickness deck. the problem appears more difficult. and ist not only the effect of decapping one has to taken into account. If protection is increased or not...
by Thorsten Wahl
Fri Nov 16, 2018 6:38 pm
Forum: Announcements, News and Updates
Topic: New Moderator
Replies: 19
Views: 4829

Re: New Moderator

Warm welcome from me. :clap:
by Thorsten Wahl
Mon Nov 12, 2018 11:43 am
Forum: Hypothetical Naval Scenarios
Topic: Richelieu and Jean Bart
Replies: 49
Views: 10406

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: 18
Views: 4306

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: 18
Views: 4306

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: 60
Views: 28537

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: 18
Views: 4306

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...