Search found 1260 matches

by marcelo_malara
Mon Feb 20, 2006 4:54 pm
Forum: Naval History in General
Topic: French Navy on WWI and WWII
Replies: 9
Views: 6377

I am posting a brief of the French battleships at WWII: Courbett class: -Jean Bart: desarmed in 1937, renamed Ocean, asigned to training. -Courbet: fire support against the Germans in Chebourg in 1940. Then she went to England, where was disarmed. -Paris: to England 1940, disarmed. Bretagne class: -...
by marcelo_malara
Sat Feb 18, 2006 4:09 pm
Forum: Naval History (1922-1945)
Topic: Hood: Battlecruiser or Fast Battleship?
Replies: 27
Views: 8220

So Dave, what happens if we just do away with the belt? Putting the main protective deck at just the waterline will protect the top of the machinery and boilers, their sides being underwater. That will give a battleship sized protected cruiser. With respect at the sources, I undestand that there is ...
by marcelo_malara
Sat Feb 18, 2006 2:40 am
Forum: Naval History (1922-1945)
Topic: Hood: Battlecruiser or Fast Battleship?
Replies: 27
Views: 8220

Thanks for the explanation. Is there any book that contains all this?
by marcelo_malara
Fri Feb 17, 2006 11:02 pm
Forum: Naval History (1922-1945)
Topic: Hood: Battlecruiser or Fast Battleship?
Replies: 27
Views: 8220

Thank you for the new data Dave. Just two questions. I didn´t ever see a section of Nelson´s hull, I don´t understand why was the protective deck sited over the belt: -It can be struck directly quite easily by a shell coming at any descending angle, isn´t it dangerous? -What is behind the belt? Mach...
by marcelo_malara
Thu Feb 16, 2006 9:37 pm
Forum: Naval History (1922-1945)
Topic: Hood: Battlecruiser or Fast Battleship?
Replies: 27
Views: 8220

Yes Karl, I agree with you. It seems that we will have to reclassify Hood, at least for us. For the protection scheme of Hood, I took the data from the volume of Conway´s Anatomy of the Ship, The Battlecruiser Hood. Wonderful volume, John Roberts did a magnificent work here, only surpased by his Bat...
by marcelo_malara
Thu Feb 16, 2006 4:42 pm
Forum: Naval History (1922-1945)
Topic: Hood: Battlecruiser or Fast Battleship?
Replies: 27
Views: 8220

Karl, you are making the same mistake as I did judging the horizontal protection based on the raw data found on books. The forecastle deck on Hood is 32 mm near the fore turrets, 51 around funnels and 32 mm again behind. The upper deck is 19 mm below the forecastle and and 51 and 26 behind it. The m...
by marcelo_malara
Thu Feb 16, 2006 2:54 pm
Forum: Naval History (1922-1945)
Topic: Hood: Battlecruiser or Fast Battleship?
Replies: 27
Views: 8220

Dave, you are right. I withdraw my previous opinion about the horizontal protection of Hood. Yesterday I compared Hood and Warspite in AOTS and they are very similar.
by marcelo_malara
Wed Feb 15, 2006 3:50 pm
Forum: Naval History (1922-1945)
Topic: Hood: Battlecruiser or Fast Battleship?
Replies: 27
Views: 8220

The vertical armour of Hood was equal to other battleships. The horizontal armour was thinner.
by marcelo_malara
Wed Feb 15, 2006 3:36 pm
Forum: Naval Technology
Topic: Doubts about three shafts stern of Bismarck
Replies: 48
Views: 20757

The longer hull diminishes the wave making resistance.
by marcelo_malara
Tue Feb 14, 2006 9:11 pm
Forum: Naval Technology
Topic: Doubts about three shafts stern of Bismarck
Replies: 48
Views: 20757

It would be interesting too to know if any navy had thought of a battleship with just two shafts, as I think that according to war experience, two shafts would provide adequate redundancy.
by marcelo_malara
Tue Feb 14, 2006 8:41 pm
Forum: Naval Technology
Topic: Doubts about three shafts stern of Bismarck
Replies: 48
Views: 20757

Diesel, but I doubt it has anything to do with the material of the shaft, more a matter of the power you can get on a single propeller or reduction gear. So Foeth, be it because of the shaft or the reduction gear, we agree that the total power has something to do with the numbers of shafts, at leas...
by marcelo_malara
Tue Feb 14, 2006 8:00 pm
Forum: Naval Technology
Topic: Doubts about three shafts stern of Bismarck
Replies: 48
Views: 20757

Interesting data. May be post-war steel is better than pre-war one. Is the power of those ships diesel or steam?
by marcelo_malara
Tue Feb 14, 2006 6:50 pm
Forum: Naval Technology
Topic: Doubts about three shafts stern of Bismarck
Replies: 48
Views: 20757

I agree with Hartmann10. There has to be a limit in the power a shaft can transmit without breaking, and it seems to be near 50000 hp, as you have no battleships with 3 shafts and more than 150000 total hp.
by marcelo_malara
Mon Feb 06, 2006 4:29 pm
Forum: The Dreadnought Era (1906-1921)
Topic: Jutland recurrent themes
Replies: 51
Views: 32090

Karl, I don´t agree with your view. In fact the Admiralty was often pointed out as too much conservative. There are many examples, from the keeping of muzzle loading guns till mid 1870´s (I believe) to the late adoption of HE in their shells in place of black powder.
by marcelo_malara
Thu Feb 02, 2006 8:42 pm
Forum: Bismarck General Discussion
Topic: Who designed the Bismarck
Replies: 34
Views: 8916

Sorry but Dreadnought was: laid 2/10/05 launched 10/2/06 completed 12/06 South Carolina was: laid 18/12/06 launched 11/7/08 completed 3/10 In fact, South Carlolina´s sister, Michigan, was built a little early: laid 17/12/06 launched 26/5/08 completed 1/10 Don´t forget the Satsuma: laid 1/5/05 launch...