Search found 1182 matches

by marcelo_malara
Fri Jan 17, 2020 2:11 am
Forum: Naval Technology
Topic: USN cruisers fire control top
Replies: 2
Views: 112

Re: USN cruisers fire control top

Yes, I found the answer in Friedman´s US Naval Weapons. The director in Chester is Mk24, it had no range finder. The first US director that incorporated a range finder (in the way the DCT of the RN did) was the later Mk34.

Regards
by marcelo_malara
Thu Jan 16, 2020 3:11 pm
Forum: Naval Technology
Topic: USN cruisers fire control top
Replies: 2
Views: 112

USN cruisers fire control top

Hi guys. In the early days of centralized fire control, the director and the range finder were different pieces of equipment. The director was mounted on the top of the masts, and the range finders (there were more than one) in lower positions, on top of the conning tower for example. Between wars t...
by marcelo_malara
Sat Nov 23, 2019 1:32 am
Forum: Naval Technology
Topic: WWII armor vs modern weapons
Replies: 4
Views: 709

Re: WWII armor vs modern weapons

Take a look to an unexploded Exocet´s warhead, not easy to stop!

https://www.tapatalk.com/groups/hypersc ... 10434.html
by marcelo_malara
Mon Nov 11, 2019 8:13 pm
Forum: Naval Weapons
Topic: Fuze delay in aerial antiship bombs
Replies: 5
Views: 360

Re: Fuze delay in aerial antiship bombs

Thanks guys, That times make sense. I can no longer find the 8-15 sec delay info, I remember it being used in bombs involved in the skip bombing technique used in the Pacific.
by marcelo_malara
Mon Nov 11, 2019 8:09 pm
Forum: Bismarck General Discussion
Topic: New Winklareth book on Bismarck
Replies: 5
Views: 374

Re: New Winklareth book on Bismarck

It was discussed at length right here years ago, even the author was member of this forum.

Regards
by marcelo_malara
Sat Nov 09, 2019 2:02 am
Forum: Naval Weapons
Topic: Fuze delay in aerial antiship bombs
Replies: 5
Views: 360

Fuze delay in aerial antiship bombs

Hi guys. I am looking for delay times. Contrary to artillery shells, which activated on impact and had a delay of about 10 milliseconds to the explosion, aerial bombs seemed to have a very long 8-15 seconds delay, don´t even know if the delay is post impact or post launching. Does anyone have info o...
by marcelo_malara
Sat Nov 09, 2019 1:57 am
Forum: Bismarck General Discussion
Topic: New Winklareth book on Bismarck
Replies: 5
Views: 374

Re: New Winklareth book on Bismarck

And what happened to the reversed photo theory...? Is it included?

Regards
by marcelo_malara
Sun Oct 13, 2019 4:17 pm
Forum: Military History and Technology
Topic: German machine guns
Replies: 3
Views: 3372

Re: German machine guns

A little late for answering! The mechanisms are different. The MG-34 has a turning bolt, that locks to the barrel extension with a quarter turn, D4 is the rotating part. http://cdn.shopify.com/s/files/1/1524/1342/products/MG34GDF1_12_grande.jpg The MG-42 has a lug locking system, the two cylindrical...
by marcelo_malara
Sun Oct 13, 2019 3:55 pm
Forum: World War II
Topic: boys anti tank rifle
Replies: 3
Views: 1188

Re: boys anti tank rifle

Hi Paul, it was created in WWI, when the tanks had far less armour than in WWII, would be useless against a WWII tank.

Regards
by marcelo_malara
Sat Oct 12, 2019 7:20 pm
Forum: Bismarck General Discussion
Topic: Bismarck´s paravanes
Replies: 13
Views: 735

Re: Bismarck´s paravanes

So, a floating line could be introduced from deck, exiting at the base of the stem, floating to the surface and retrieved over the side with a hook? And then this leader used to pass a heavy wire to attach the paravanes?

Regards
by marcelo_malara
Fri Oct 11, 2019 4:15 pm
Forum: Bismarck General Discussion
Topic: Bismarck´s paravanes
Replies: 13
Views: 735

Re: Bismarck´s paravanes

Thanks guys, now I am getting a clearer picture. What about Bismarck´s and her extending boom? What is the pointed line going from boom to deck in the diagram?

Regards
by marcelo_malara
Fri Oct 11, 2019 2:30 am
Forum: Bismarck General Discussion
Topic: Bismarck´s paravanes
Replies: 13
Views: 735

Re: Bismarck´s paravanes

Thanks Byron, I gave it a look.

Anyway, for me the question remains, I do not remember seeing a ship with the chains loops rigged near the bow, may be that´s how it was used in the monitors but don´t think it was the same for others (Bismarck for instance).

Regards
by marcelo_malara
Mon Oct 07, 2019 2:51 pm
Forum: Bismarck General Discussion
Topic: Bismarck´s paravanes
Replies: 13
Views: 735

Re: Bismarck´s paravanes

Yes, I had read the 2006 discussion, but nothing was mentioned in deep on the attachment method.

Anyway, the chains were permanently in place?

Regards
by marcelo_malara
Mon Oct 07, 2019 12:23 am
Forum: Bismarck General Discussion
Topic: Bismarck´s paravanes
Replies: 13
Views: 735

Re: Bismarck´s paravanes

Thanks Wadinga.
Most ships have two continuous loops of chain passing down from either side of the bow through a ring at the forefoot of the bow.
Don´t quiet understand this, these loops are permanently rigged? Do you have any photo?

Regards
by marcelo_malara
Sun Oct 06, 2019 6:12 pm
Forum: Bismarck General Discussion
Topic: Bismarck´s paravanes
Replies: 13
Views: 735

Bismarck´s paravanes

Hi guys. I just saw this image of the paravane system used on Bismarck:

Image

Can someone explain how the system worked? The pole is somehow pull out of the stem? How is the towing cable attached?

Regards