Search found 4398 matches

by dunmunro
Wed Feb 09, 2011 11:38 pm
Forum: Hypothetical Naval Scenarios
Topic: Bismarck vs. Iowa
Replies: 322
Views: 86862

Re: Bismarck vs. Iowa

According to Statz path 2 is correct. This would seem to indicate that the damage to compartments 2 and 3 (as numbered in my adapted diagram) more likely occurred from Victorious' torpedo hit rather than from the 14" hit, as it is difficult to reconcile such extensive damage from a 14" hi...
by dunmunro
Wed Feb 09, 2011 9:44 pm
Forum: Hypothetical Naval Scenarios
Topic: Bismarck vs. Iowa
Replies: 322
Views: 86862

Re: Bismarck vs. Iowa

I made up this schematic showing the two alternate paths for the flooding:
Image
as shown by the arrows and the question marks.
by dunmunro
Tue Feb 08, 2011 9:30 pm
Forum: Hypothetical Naval Scenarios
Topic: Bismarck vs. Iowa
Replies: 322
Views: 86862

Re: Bismarck vs. Iowa

Dave Saxton/DunMunro wrote " ... and the auxiliary boiler room" : I have just been rereading the most comprehensive German account on this action I know of in the book by Brennecke. It says that the turbogenerator room (compartment XIV), port No. 2 boiler room (compartment XIII) and the p...
by dunmunro
Tue Feb 08, 2011 4:58 am
Forum: Hypothetical Naval Scenarios
Topic: Bismarck vs. Iowa
Replies: 322
Views: 86862

Re: Bismarck vs. Iowa

Allow me to quote from the Baron concerning the hit in question. .. and the auxiliary boiler room. The auxiliary boiler room is actually about 15m inboard of the generator room, so the splinters penetrated the 45mm bulkhead and the bulkhead between the generator room and auxiliary boiler room.
by dunmunro
Sun Jan 30, 2011 9:20 pm
Forum: Naval Weapons
Topic: What was the most effective naval anti-aircraft gun of WW2?
Replies: 167
Views: 110669

Re: What was the most effective naval anti-aircraft gun of W

OK, I found another film clip of the 5.25" twin turrets, and they fire 3 twin gun salvos in 18 seconds: http://www.wpafilmlibrary.com then enter 506410-1 in the search field. starting at 01:10:54, again at 01:11:00 and again at 01:11:06 from 01:10:05 there is footage of about 4 or 5 salvos fir...
by dunmunro
Sun Jan 30, 2011 9:19 pm
Forum: Naval Weapons
Topic: What was the most effective naval anti-aircraft gun of WW2?
Replies: 167
Views: 110669

Re: What was the most effective naval anti-aircraft gun of W

Yes, that would be about 10 rounds per minute in the first instance and 7.5 rounds per minute in the second. That seems in accordance with published information. The Gunnery Pocket Book does state 10-12 rpm, but this figure is disputed in some circles. We know that the gun can fire slower than this...
by dunmunro
Sun Jan 30, 2011 8:08 pm
Forum: Naval Weapons
Topic: What was the most effective naval anti-aircraft gun of WW2?
Replies: 167
Views: 110669

Re: What was the most effective naval anti-aircraft gun of W

OK, I found another film clip of the 5.25" twin turrets, and they fire 3 twin gun salvos in 18 seconds: http://www.wpafilmlibrary.com then enter 506410-1 in the search field. starting at 01:10:54, again at 01:11:00 and again at 01:11:06 from 01:10:05 there is footage of about 4 or 5 salvos fire...
by dunmunro
Sat Jan 22, 2011 10:47 am
Forum: Hypothetical Naval Scenarios
Topic: Somerville against the Rising Sun...
Replies: 72
Views: 12829

Re: Somerville against the Rising Sun...

Given the slow speed of British carrier planes and the slow deck operating cycle (every plane struck below before the next one lands), it would be well after midnight before the carriers could recover their planes. T RN carriers used crash barriers as per the USN and their recovery rate was just as...
by dunmunro
Sat Jan 22, 2011 10:06 am
Forum: Hypothetical Naval Scenarios
Topic: Somerville against the Rising Sun...
Replies: 72
Views: 12829

Re: Somerville against the Rising Sun...

...potentially 57 Fulmar and Albacore DBs, less about 8-12 assigned to recon duties leaving 49- 45 aircraft strike available and 27 Sea Hurricane and Martlet fighters. The Swordfish were typically used for ASW, but some could have also participated, especially as a 2nd wave to arrive after dark. A ...
by dunmunro
Thu Jan 20, 2011 8:13 pm
Forum: Hypothetical Naval Scenarios
Topic: Somerville against the Rising Sun...
Replies: 72
Views: 12829

Re: Somerville against the Rising Sun...

The Albacore and TBD were in service at the same time, so they obviously were contemporaries. The RN understood divebombing very well, and was the first navy to sink a major warship via a DB attack...The FAA developed no less than 5 DB capable aircraft by 1942, namely the Swordfish, Albacore, Skua, ...
by dunmunro
Thu Jan 20, 2011 12:48 am
Forum: Naval History (1922-1945)
Topic: Aircraft carrier doctrine
Replies: 4
Views: 3505

Re: Aircraft carrier doctrine

The development of FAA tactical doctrine, pre 1939: Carrier versus carrier: From about 1933 on, the Admiralty showed increasing interest in dive-bombing, as the best means of accurate delivery against small and highly manoeuvrable ships.(6) Dive-bombing was also particularly attractive as a means of...
by dunmunro
Wed Jan 19, 2011 4:50 am
Forum: Naval History (1922-1945)
Topic: FAA aircraft comparative performance
Replies: 91
Views: 14816

Re: FAA aircraft comparative performance

Barracudas repeated their attack on Tirpitz on six later occasions with basically no success. The dates, all in 1944, were May 15, July 14, August 20 (abortive), August 22, August 24, and August 29. The initial attack worked because it was the first and was thus a surprise; subsequent attacks didn'...
by dunmunro
Wed Jan 19, 2011 4:38 am
Forum: Hypothetical Naval Scenarios
Topic: Somerville against the Rising Sun...
Replies: 72
Views: 12829

Re: Somerville against the Rising Sun...

The Fairey Fulmar is not a divebomber, at best it is a glide bomber much like its ancestor, the Fairey Battle. As for the Albacore, they would soon be toast. On another topic, you quoted the British author Eric Brown about another aircraft. Let's see what he says in "Duels in the sky" abo...
by dunmunro
Wed Jan 19, 2011 3:48 am
Forum: Naval History (1922-1945)
Topic: FAA aircraft comparative performance
Replies: 91
Views: 14816

Re: FAA aircraft comparative performance

My Father in Law served on TBMs in the latter part of WWII, and operated the ventral MG and the radio. He described a number of engagements to me, and never indicated it was removed. It would have been a major thing, since he spent a lot of time firing it during strafing attacks. I looked through s...
by dunmunro
Wed Jan 19, 2011 2:03 am
Forum: Naval History (1922-1945)
Topic: FAA aircraft comparative performance
Replies: 91
Views: 14816

Re: FAA aircraft comparative performance

I thought pilot's comments on Barracuda was that it was very slow to initiate a roll/turn, which made it hard to take evasive action after releasing a weapon. Obviously if that is true, it would have more trouble than normal with fighers since it would be unable to take evasive action quickly. And ...