Search found 835 matches

by Thorsten Wahl
Thu Jun 30, 2022 6:56 am
Forum: Bismarck General Discussion
Topic: Was the battleship Bismarck really the best of its time?
Replies: 161
Views: 10718

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

ut based on the the data from the Saacke burners (two per boiler) they are listed with fuel consumption of 3950 kgs /per hour per unit at "Äußerster Last", wich is about 3,750 m³ (density 0,95 t/m³)per hour per unit I made a mistake here the fuel Consumption at äußerste Last was for boile...
by Thorsten Wahl
Tue Jun 28, 2022 2:58 pm
Forum: Bismarck General Discussion
Topic: Was the battleship Bismarck really the best of its time?
Replies: 161
Views: 10718

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

. Which model of radar was on board of Prinz Eugen in May 1941 these unit(s) consist of a Feinpeileinrichtung and a Aufschlagmessgerät (=Entfernung fein=Messkette) according to a fragmentary piece from a E.mess protocol. Scharnhorst and Gneisenau used Messkette units during winter 1940/41 and exper...
by Thorsten Wahl
Tue Jun 28, 2022 1:44 pm
Forum: Bismarck General Discussion
Topic: Was the battleship Bismarck really the best of its time?
Replies: 161
Views: 10718

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

understanding questions regarding fuel consumption of Tirpitz. the data point for 31,7 kn lists a consumption per hour from about ~68 m³ of fuel oil per hour. but based on the the data from the Saacke burners (two per boiler) they are listed with fuel consumption of 3950 kgs /per hour per unit at &q...
by Thorsten Wahl
Mon May 16, 2022 3:23 pm
Forum: Naval Weapons
Topic: Torpedoes
Replies: 14
Views: 5783

Re: Torpedoes

by Thorsten Wahl
Sun May 15, 2022 10:00 am
Forum: Naval Technology
Topic: Armor sample chemistry question
Replies: 13
Views: 1192

Re: Armor sample chemistry question

Yes,
Deutschland had older types.
These were replaced by the newer types on Scheer and AGS
by Thorsten Wahl
Sun May 15, 2022 10:00 am
Forum: Naval Technology
Topic: Armor sample chemistry question
Replies: 13
Views: 1192

Re: Armor sample chemistry question

Double
by Thorsten Wahl
Thu May 12, 2022 6:45 am
Forum: Naval Technology
Topic: Armor sample chemistry question
Replies: 13
Views: 1192

Re: Armor sample chemistry question

1) 'weldability' of 'K.C.s' steel, Krupp weldable is KNC but not cemented as C content is in the order of0,32 -0,34% in therory the backside of KC is weldable but it wasnt done the abbreviations were partly old (WW1) abbreviations MDV 147 Allgemeine Baubestimmungen I Nr. 47 Liefervorschrift für Pan...
by Thorsten Wahl
Wed May 11, 2022 11:56 am
Forum: Naval Technology
Topic: Armor sample chemistry question
Replies: 13
Views: 1192

Re: Armor sample chemistry question

Schiffbaustähle were not alloyed steels Schiffbaustahl I = St 37 Schiffbaustahl II = St 42 Schiffbaustahl III = St 52 they exist until today a SAE-steels multiplicate 9,81 and u get the figure in N/mm² instead kg/mm² n/a means neue Art = new type KC witout any abbreviaton general Krupp cemented KVC ...
by Thorsten Wahl
Tue May 10, 2022 4:13 pm
Forum: World War II
Topic: Some questions regarding to WWII German naming of documents
Replies: 2
Views: 904

Re: Some questions regarding to WWII German naming of documents

the documents start with the shortsign of the Navy Branch...department maybe a subdivision ; sequential number/year ; secrecy level and date of the document AWA -;Marinewaffenamt; Chief Witzell further subdivision A IA SKL I -;Seekriegsleitung I; Chief Raeder K -; Konstruktions(K)- Amt; Chief Fuchs ...
by Thorsten Wahl
Mon May 09, 2022 2:45 pm
Forum: Buy, Sell and Trade
Topic: Bismarck Fire Control Systems
Replies: 1
Views: 329

Re: Bismarck Fire Control Systems

I have always been puzzled by Bismarck's poor performance in its final engagement. first look at the geometry of the last battle. Bismarck was on a general lurching course north west. It could not actively choose a course out of wind/wave direction except circling. Due to its speed it was a easy ta...
by Thorsten Wahl
Thu Apr 28, 2022 1:09 pm
Forum: Hypothetical Naval Scenarios
Topic: Building a patchwork battleship
Replies: 9
Views: 1157

Re: Building a patchwork battleship

French and Italian powerplants were comparatively light and compact. cons. reliability under battledamage is doubtful (redundancy) the powerplants were less effective in steam consumption is range a must? if range is the primary consideration how about german V-Motor 12 x 15000 WPS =180000 WPS about...
by Thorsten Wahl
Mon Apr 25, 2022 1:04 pm
Forum: Naval History (1922-1945)
Topic: Armor Quality
Replies: 7
Views: 1124

Re: Armor Quality

We can take the german penetration charts against FH armour as a sample. these charts show two limits of a generalised type a Grenzschusslimit- caliber size hole in plate shell broken. a Heildurch limit - hole in plate shell behind plate whole and fit to burst. at this limit velocity you can expect ...
by Thorsten Wahl
Thu Apr 21, 2022 2:40 pm
Forum: Hypothetical Naval Scenarios
Topic: Building a patchwork battleship
Replies: 9
Views: 1157

Re: Building a patchwork battleship

With regard to horizontal protection, There are several types of attacks AP-bombs General purpose-bombs (large HE-capacity( AP-shells (incl.semi AP) HE-shells The different arrangements perform different against different types of attack. Ballistic protection splitted or not The same for attack agai...
by Thorsten Wahl
Wed Apr 20, 2022 5:42 pm
Forum: Naval Technology
Topic: Armor sample chemistry question
Replies: 13
Views: 1192

Re: Armor sample chemistry question

30 mm could be the longitudial splinterbulkhead
But it makes no sense to use a 0.6 % C, 2 % Ni / 2 %Cr alloy here. For such thin plate. You dont need extreme hardenability.

And 0.6 % C could be somwhat problematic for welding.



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