Search found 922 matches
- Tue Jun 28, 2022 2:58 pm
- Forum: Bismarck General Discussion
- Topic: Was the battleship Bismarck really the best of its time?
- Replies: 220
- Views: 84758
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...
- Tue Jun 28, 2022 1:44 pm
- Forum: Bismarck General Discussion
- Topic: Was the battleship Bismarck really the best of its time?
- Replies: 220
- Views: 84758
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...
- Mon May 16, 2022 3:23 pm
- Forum: Naval Weapons
- Topic: Torpedoes
- Replies: 14
- Views: 8071
- Sun May 15, 2022 10:00 am
- Forum: Naval Technology
- Topic: Armor sample chemistry question
- Replies: 14
- Views: 4517
Re: Armor sample chemistry question
Yes,
Deutschland had older types.
These were replaced by the newer types on Scheer and AGS
Deutschland had older types.
These were replaced by the newer types on Scheer and AGS
- Thu May 12, 2022 6:45 am
- Forum: Naval Technology
- Topic: Armor sample chemistry question
- Replies: 14
- Views: 4517
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...
- Wed May 11, 2022 11:56 am
- Forum: Naval Technology
- Topic: Armor sample chemistry question
- Replies: 14
- Views: 4517
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 ...
- Tue May 10, 2022 4:13 pm
- Forum: World War II
- Topic: Some questions regarding to WWII German naming of documents
- Replies: 2
- Views: 1950
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 ...
- Mon May 09, 2022 2:45 pm
- Forum: Buy, Sell and Trade
- Topic: Bismarck Fire Control Systems
- Replies: 1
- Views: 1858
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...
- Thu Apr 28, 2022 1:09 pm
- Forum: Hypothetical Naval Scenarios
- Topic: Building a patchwork battleship
- Replies: 9
- Views: 2764
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...
- Mon Apr 25, 2022 1:04 pm
- Forum: Naval History (1922-1945)
- Topic: Armor Quality
- Replies: 7
- Views: 4025
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 ...
- Thu Apr 21, 2022 2:41 pm
- Forum: Hypothetical Naval Scenarios
- Topic: Building a patchwork battleship
- Replies: 9
- Views: 2764
- Thu Apr 21, 2022 2:40 pm
- Forum: Hypothetical Naval Scenarios
- Topic: Building a patchwork battleship
- Replies: 9
- Views: 2764
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...
- Wed Apr 20, 2022 5:42 pm
- Forum: Naval Technology
- Topic: Armor sample chemistry question
- Replies: 14
- Views: 4517
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.
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.
- Tue Apr 19, 2022 12:38 pm
- Forum: Naval Technology
- Topic: Armor sample chemistry question
- Replies: 14
- Views: 4517
Re: Armor sample chemistry question
looks like a steel for armour piercing projectiles
-high C %- required for hardenability ~60 Rc
post 1941
...P and S content appears as to high max 0,02% were allowed
-high C %- required for hardenability ~60 Rc
post 1941
...P and S content appears as to high max 0,02% were allowed
- Tue Mar 22, 2022 9:28 am
- Forum: Naval Technology
- Topic: Cruisers
- Replies: 7
- Views: 2152
Re: Cruisers
in 1934 the german naval leadership discussed the problem 12 x 15 cm <----->8 x 20,3 cm 0)main armament weight 4 x 2 x 20,3cm ~550 t 4 x 3 x 15 cm ~540 t (less protected then 20,3 cm) --> the armament requires a ship of about the same displacement a) AP-pentration vs 100 mm armour 20,3 cm ~23 km 15 ...