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by Francis Marliere
Tue Feb 28, 2017 10:34 am
Forum: Naval Technology
Topic: Amphibious operations
Replies: 3
Views: 269

Re: Amphibious operations

Thanks.
by Francis Marliere
Wed Feb 22, 2017 9:42 am
Forum: Naval Technology
Topic: Amphibious operations
Replies: 3
Views: 269

Amphibious operations

Gentlemen, I have some questions about amphibious operations (just the landing, not assault, which is even more complicated). I assume that not all beaches are suited for a landing. What is the minimum size and maximum slope for the beaching of a small craft (LCVP, LCM, LCT) ? Same question for a LS...
by Francis Marliere
Thu Dec 22, 2016 2:21 pm
Forum: Naval Technology
Topic: Smoke screen
Replies: 5
Views: 428

Re: Smoke screen

I'm talking about chemical smoke during a 'typical' night, without illumination.
by Francis Marliere
Thu Dec 22, 2016 10:55 am
Forum: Naval Technology
Topic: Smoke screen
Replies: 5
Views: 428

Smoke screen

Gentlemen,

do you know if / how far smoke screen were visible by night ?

Thanks for any help,

Francis Marliere
by Francis Marliere
Fri Oct 21, 2016 7:32 am
Forum: Military History and Technology
Topic: Martini Henry rifles
Replies: 8
Views: 811

Re: Martini Henry rifles

As fars as I understand things, US Infantry still had single shot rifles at this time : only cavalry units had Spencer carbines. The reasons why infantry did not have carbines are IMHO : - carbines are muche more expensives than rifles ; - the ammunition consumption of carbines is too high ; - the r...
by Francis Marliere
Wed Sep 21, 2016 8:39 am
Forum: Bismarck General Discussion
Topic: Cover up synopsis
Replies: 623
Views: 14983

Re: Cover up synopsis

I let you and Alberto to discuss about the 203 mm ( 8 inches ) guns effectiveness when engaged against battleships, since this is NOT the argument in discussion on this thread. Antonio, you miss my point. I am not getting involved in the 'cover up' discussion, but was just making a short comment ab...
by Francis Marliere
Wed Sep 21, 2016 8:33 am
Forum: Bismarck General Discussion
Topic: Cover up synopsis
Replies: 623
Views: 14983

Re: Cover up synopsis

I'm afraid that PG opened fire at 5:55 on Hood from over 20000 yards. She hit the British flagship before Bismarck, at 5:57 from a range of around 19000 yards, igniting the ready to use AA ammo and causing the famous fire on the boat deck. Other hits on Hood are not officially confirmed, but possib...
by Francis Marliere
Tue Sep 20, 2016 8:48 am
Forum: Bismarck General Discussion
Topic: Cover up synopsis
Replies: 623
Views: 14983

Re: Cover up synopsis

Alberto, no offense, but we disagree on this subject. I do think their fire from effective range can well contribute to the enemy defeat Alberto, as far as I know, the RN CA were at best at 10 nm, which is long range rather than effective range for these ships. as it certainly did Prinz Eugen at Den...
by Francis Marliere
Mon Sep 19, 2016 10:05 am
Forum: Bismarck General Discussion
Topic: Cover up synopsis
Replies: 623
Views: 14983

Re: Cover up synopsis

Remember too that an important factor in the whole DS action was its brevity - had disaster not befallen BC1 and a longer duel developed , Norfolk and later Suffolk would have caught up and joined in and there would be no debate. Paul, while I am not convinced by the 'cover up' theory, I am not sur...
by Francis Marliere
Wed Aug 17, 2016 7:58 am
Forum: Hypothetical Naval Scenarios
Topic: What if: Bismarck or Prinz Eugen made smoke at 5:45 and accelerated at max speed
Replies: 27
Views: 1155

Re: What if: Bismarck or Prinz Eugen made smoke at 5:45 and accelerated at max speed

Anyway, a ship without smoke generator can make smoke with its funnel(s). While a funnel smokescreen is not as efficient as a chemical one, it can make aiming and spoting very difficult.
by Francis Marliere
Thu Jun 09, 2016 5:30 pm
Forum: Naval Weapons
Topic: Modern AAA
Replies: 5
Views: 819

Modern AAA

Gentlemen, I wonder about modern AAA effectiveness and I'm looking about data to guesstimate it. In 'Naval Antiaircraft Guns& Gunnery', Norman friedman states that - A simple, optic director improves the effectiveness fo Bofors and Oerlikon by 50%. - Late-war fire control and radar improve the e...
by Francis Marliere
Tue May 03, 2016 8:25 am
Forum: Hypothetical Naval Scenarios
Topic: Hood v Vittorio Veneto
Replies: 560
Views: 12145

Re: Hood v Vittorio Veneto

Some quick comments on the scenario : 1- VADM Somerville is no longer in charge of the Mediterranean fleet in 1943. 2- If British ships are disadvantaged at long range (at the beginning of the battle), they would probably hide behind a smoke screen. 3- The italian "charge" may make some se...
by Francis Marliere
Wed Mar 16, 2016 5:47 pm
Forum: Naval Weapons
Topic: Sea Dart
Replies: 3
Views: 507

Re: Sea Dart

Steeve,

I agree that the problem should not the same for a CGN which has plenty of power. The gentlemen I am talking about was a sailor on a French 'Escorteur d'Escadre' (built in the 50s).
by Francis Marliere
Wed Mar 16, 2016 11:03 am
Forum: Naval Weapons
Topic: Sea Dart
Replies: 3
Views: 507

Sea Dart

Gentlemen, a friend of mine, who had first hand experience of SM1, told me that the launcher need a lot of electrical power. Before a ship can start the launcher, it must start first diesel generators. Starting these generators then the launcher takes about 2 minutes. It is not possible to keep the ...
by Francis Marliere
Mon Feb 29, 2016 10:19 am
Forum: Naval History in General
Topic: Greatest admiral of all time
Replies: 217
Views: 55750

Re: Greatest admiral of all time

I think that Frank Jack Fletcher did a pretty good job in the year-plus he was in combat - won at Coral Sea, won at Midway, won at Santa Cruz. Admiral Fletcher indeed did a very good job. However, he was not in command at Santa Cruz (which was a US defeat). FJF last battle as CTF commander was East...

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