Search found 1266 matches

by marcelo_malara
Thu Aug 20, 2020 6:41 pm
Forum: The Dreadnought Era (1906-1921)
Topic: Blucher in Dogger Bank
Replies: 8
Views: 371

Re: Blucher in Dogger Bank

Robert! Good to see you, so much time! I was reviewing the case of Juneu, quiet different, it was more a case of wrecked sailors abandoned instead of a fighting ship. In the case of Bismarck, are you Robert referring to the possibility of PE standing by her? In Dogger Bank numbers were quiet even, 5...
by marcelo_malara
Wed Aug 12, 2020 4:31 pm
Forum: The Dreadnought Era (1906-1921)
Topic: Blucher in Dogger Bank
Replies: 8
Views: 371

Blucher in Dogger Bank

Hi guys. In this battle Blucher was abandoned by the rest of the German ships, that could (orders notwithstanding) have stood by her. Was there any other case of a fellow ship left alone like this (in any war in the steam era)?

Regards
by marcelo_malara
Mon Jul 27, 2020 8:19 pm
Forum: Hypothetical Naval Scenarios
Topic: RN USN and IJN ships
Replies: 8
Views: 845

Re: RN USN and IJN ships

I don´t know if BB and cruiser machinery can be easily compared. Power (hp) is the product of torque and rotational speed (in radians per second). BBs had big and slow turning propellers, while cruisers had smaller and faster turning ones, I am not sure that a cruiser turbine geared to a BB propelle...
by marcelo_malara
Mon Jul 27, 2020 7:30 pm
Forum: Hypothetical Naval Scenarios
Topic: RN USN and IJN ships
Replies: 8
Views: 845

Re: RN USN and IJN ships

No US BB developed more than 40.000 hp before the North Carolina class, most not even 30.000 hp, that´s why they were so slow.

Regards
by marcelo_malara
Sun Jul 26, 2020 5:43 pm
Forum: Naval Propulsion
Topic: Ships boilers
Replies: 6
Views: 1046

Re: Ships boilers

Thanks Bill. I strongly recomend the book Titanic Ships Titanic Disaster (coauthored by W Garzke): https://www.amazon.com/Titantic-Ships-Titanic-Disasters-Superliners/dp/093977335X Apart that it is an excellent book, almost unknown, they do an analysis about the question of exploding boilers, coming...
by marcelo_malara
Mon Jul 20, 2020 1:22 am
Forum: Bismarck General Discussion
Topic: Secundary guns turrets
Replies: 13
Views: 1128

Re: Secundary guns turrets

Thanks guys. I have always wondered if in fact barbettes for the secondary battery were not a danger, I mean fire has a clear path to the lower hull and magazines without the same protection of a main turret barbette and gunhouse.

Regards
by marcelo_malara
Wed Jul 01, 2020 1:00 am
Forum: Bismarck General Discussion
Topic: Secundary guns turrets
Replies: 13
Views: 1128

Re: Secundary guns turrets

The new Bismarck´s book mentions that a secondary turret´s crew became locked in their post because the turret scuttle was deformed and could not be opened. Why couldn´t they escape from below deck?
by marcelo_malara
Tue Jun 30, 2020 3:30 pm
Forum: Bismarck General Discussion
Topic: Main armament hoists
Replies: 7
Views: 418

Re: Main armament hoists

Thanks!
by marcelo_malara
Tue Jun 30, 2020 3:29 pm
Forum: Bismarck General Discussion
Topic: Secundary guns turrets
Replies: 13
Views: 1128

Re: Secundary guns turrets

Pages 42 and 43, upper plan.
by marcelo_malara
Mon Jun 29, 2020 10:13 pm
Forum: Bismarck General Discussion
Topic: Secundary guns turrets
Replies: 13
Views: 1128

Re: Secundary guns turrets

Marc, in Brower´s book there are two scuttles in the barbette, they do not show up in your plan. Which is correct?
by marcelo_malara
Sun Jun 28, 2020 8:18 pm
Forum: Naval Technology
Topic: torpedoes
Replies: 12
Views: 1336

Re: torpedoes

Here is the article of the Argentine project, it was developed by an Italian engineer that had made something similar during the war. Sorry it is in Spanish, but there are some pictures so you can get an idea of the device, the engine would be an DB605. https://issuu.com/archivohistorico/docs/revist...
by marcelo_malara
Sun Jun 28, 2020 7:51 pm
Forum: Bismarck General Discussion
Topic: Secundary guns turrets
Replies: 13
Views: 1128

Re: Secundary guns turrets

Thanks Marc! How was this in other navies?
by marcelo_malara
Sun Jun 28, 2020 7:50 pm
Forum: Bismarck General Discussion
Topic: Main armament hoists
Replies: 7
Views: 418

Re: Main armament hoists

Admirable synthesis! Thanks! Was there any manual backup for either (I must admit that there would be difficult lifting about a ton 15 m by hand).

Regards
by marcelo_malara
Sun Jun 28, 2020 7:45 pm
Forum: Naval Technology
Topic: torpedoes
Replies: 12
Views: 1336

Re: torpedoes

About radio guidance for torpedoes, yes, there is no way for this unless you deploy an aerial above surface. Anyway, here in Argentina somebody tried exactly this, radio guidance and (stranger yet) explosion engine propulsion, air admitted via a kind of snorkel, will look for pictures. It had a larg...
by marcelo_malara
Sun Jun 28, 2020 7:29 pm
Forum: Naval Technology
Topic: torpedoes
Replies: 12
Views: 1336

Re: torpedoes

Well, long range torpedoes use mid course guidance thru a cable, receiving target data from the parent platform, the torpedo onboard sensors have not the space for the sensitivity needed for a 50 km detection. I must say that I am in a mistake with this, the wonder-propellants were not available unt...