Search found 1194 matches

by Byron Angel
Wed May 12, 2021 9:12 pm
Forum: Naval Weapons
Topic: British 4.5"/45 (11.4 cm) vs American 5"/38 (12.7 cm) Mark 12
Replies: 32
Views: 406

Re: British 4.5"/45 (11.4 cm) vs American 5"/38 (12.7 cm) Mark 12

It not possible to add ~4 tons at the director level (~55ft AWL) and not have it cause serious issues for ship stability. As the BuOrd history makes clear, one of the design goals of Mk37 was to reduce topweight, and this goal was not met. Hi dunmunro, Apparently, Bureau of Ships did not share your...
by Byron Angel
Wed May 12, 2021 6:09 pm
Forum: Naval Weapons
Topic: British 4.5"/45 (11.4 cm) vs American 5"/38 (12.7 cm) Mark 12
Replies: 32
Views: 406

Re: British 4.5"/45 (11.4 cm) vs American 5"/38 (12.7 cm) Mark 12

It not possible to add ~4 tons at the director level (~55ft AWL) and not have it cause serious issues for ship stability. As the BuOrd history makes clear, one of the design goals of Mk37 was to reduce topweight, and this goal was not met. Hi dunmunro, Apparently, Bureau of Ships did not share your...
by Byron Angel
Wed May 12, 2021 3:51 am
Forum: Naval Weapons
Topic: British 4.5"/45 (11.4 cm) vs American 5"/38 (12.7 cm) Mark 12
Replies: 32
Views: 406

Re: British 4.5"/45 (11.4 cm) vs American 5"/38 (12.7 cm) Mark 12

The Fletcher class was the largest class of destroyers built during WWII. Subsequent classes also used the Mark 37. If it was too heavy for previous classes I think that's actually kind of irrelevant. Hi Steve, The Farragut Class (followed by the pre-war Mahans, Gridleys, Dunlaps, Bagleys, Benhams ...
by Byron Angel
Mon May 10, 2021 11:07 pm
Forum: Naval Weapons
Topic: British 4.5"/45 (11.4 cm) vs American 5"/38 (12.7 cm) Mark 12
Replies: 32
Views: 406

Re: British 4.5"/45 (11.4 cm) vs American 5"/38 (12.7 cm) Mark 12

The USN claimed 127 AA kills at Santa Cruz, this is in addition to USN CAP, Escort and strike aircraft claims, and the AA numbers. alone, are far in excess of the total number of IJN strike sorties at Santa Cruz, not all of which were shot down. Similar USN overclaims were made in almost all naval ...
by Byron Angel
Mon May 10, 2021 10:29 pm
Forum: Naval Weapons
Topic: British 4.5"/45 (11.4 cm) vs American 5"/38 (12.7 cm) Mark 12
Replies: 32
Views: 406

Re: British 4.5"/45 (11.4 cm) vs American 5"/38 (12.7 cm) Mark 12

There was nothing ground breaking about Mk37, as the Mk33 had all the same features ..... OD3147 – DEFENSE AGAINST DIVE BOMBERS USING GUN DIRECTORS Mk. XIX, Mk. XXVIII, Mk. XXXIII and MK. XXXVII 14 September 1939 OBJECT 1. The object of this pamphlet is to p[resent the various methods of defense ag...
by Byron Angel
Mon May 10, 2021 1:46 am
Forum: Naval Weapons
Topic: British 4.5"/45 (11.4 cm) vs American 5"/38 (12.7 cm) Mark 12
Replies: 32
Views: 406

Re: British 4.5"/45 (11.4 cm) vs American 5"/38 (12.7 cm) Mark 12

The USN claimed 127 AA kills at Santa Cruz, this is in addition to USN CAP, Escort and strike aircraft claims, and the AA numbers. alone, are far in excess of the total number of IJN strike sorties at Santa Cruz, not all of which were shot down. Similar USN overclaims were made in almost all naval ...
by Byron Angel
Mon May 10, 2021 12:05 am
Forum: Naval Weapons
Topic: British 4.5"/45 (11.4 cm) vs American 5"/38 (12.7 cm) Mark 12
Replies: 32
Views: 406

Re: British 4.5"/45 (11.4 cm) vs American 5"/38 (12.7 cm) Mark 12

Didn't british cruisers with the 5"/38 and Mark 37 combo like it a lot? Did they get infected with US enthusiasm for the system? Yes indeed, Iville Porteous (father of "Flyplane") and Hugh Clausen (then Chief Technical Advisor to DNO) went aboard HMS Delhi to inspect its 5in/38 Mk37GFCS in February...
by Byron Angel
Sun May 09, 2021 11:00 pm
Forum: Naval Weapons
Topic: British 4.5"/45 (11.4 cm) vs American 5"/38 (12.7 cm) Mark 12
Replies: 32
Views: 406

Re: British 4.5"/45 (11.4 cm) vs American 5"/38 (12.7 cm) Mark 12

There was nothing ground breaking about Mk37, as the Mk33 had all the same features and Mk37 was not fitted with 'autotracking radar'. The MK4 FD radar was manually tracked. I'm sorry to say, dunmunro, that you have some things rather wrong here. Design of the Mk37 was undertaken only two years aft...
by Byron Angel
Sun May 09, 2021 3:49 am
Forum: Naval Weapons
Topic: British 4.5"/45 (11.4 cm) vs American 5"/38 (12.7 cm) Mark 12
Replies: 32
Views: 406

Re: British 4.5"/45 (11.4 cm) vs American 5"/38 (12.7 cm) Mark 12

The USN based their AA studies on USN AA kill claims. These claims were inevitably inflated (probably by a factor of 2 to 3) due to multiple claims per aircraft shot down, as aircraft were almost invariably being engaged by multiple ships. The statement for the 5in/38 being effective as an AA weapo...
by Byron Angel
Fri May 07, 2021 5:30 pm
Forum: Naval History (1922-1945)
Topic: KMS Admiral Hipper v HMS Berwick-25th Dec.1940
Replies: 14
Views: 6328

Re: KMS Admiral Hipper v HMS Berwick-25th Dec.1940

Shortly before her 25 December 40 encounter with Admiral Hipper, Berwick had on 27 November 40 been involved in a surface action versus the Regia Marina in the Mediterranean in the course of which she suffered two 8in hits aft which disabled Y turret and required 20 days time to effect temporary rep...
by Byron Angel
Thu May 06, 2021 10:45 pm
Forum: Naval Weapons
Topic: British 4.5"/45 (11.4 cm) vs American 5"/38 (12.7 cm) Mark 12
Replies: 32
Views: 406

Re: British 4.5"/45 (11.4 cm) vs American 5"/38 (12.7 cm) Mark 12

The above representation of the 5in/38 DP is inaccurate (to coin a phrase) in several respects. A number of original USN analyses of AA weapon performance are available on the web which cover the PTO from Dec 1941 through the Kamikaze campaign of 1945. Worth reading, if there is any interest in gain...
by Byron Angel
Wed Mar 10, 2021 1:39 am
Forum: The Dreadnought Era (1906-1921)
Topic: Books on British Battlecruisers?
Replies: 61
Views: 5608

Re: Books on British Battlecruisers?

Report of the Committee on Mercantile Cruisers Presented to both Houses of Parliament by Command of His Majesty LONDON Printed for His Majesty’s Stationery Office By Eyre and Spottiswoode, Printers to the King’s Most Excellent Majesty 1902 This article is a detailed presentation of the huge costs in...
by Byron Angel
Tue Mar 09, 2021 8:03 pm
Forum: The Dreadnought Era (1906-1921)
Topic: Royal Navy Super Battleships and Battlecruisers
Replies: 124
Views: 70093

Re: Royal Navy Super Battleships and Battlecruisers

I think it would be very difficult for Scharnhorst to operate in the South Atlantic at all, due to fuel/cruising range issues. Uckermark managed to get to Japan in 1942 with the US in the war, so I think a sortie by Scharnhorst in say 1940 supported by Uckermark/Nordmark/ Dithmarschen would have be...
by Byron Angel
Tue Mar 09, 2021 4:02 pm
Forum: The Dreadnought Era (1906-1921)
Topic: Royal Navy Super Battleships and Battlecruisers
Replies: 124
Views: 70093

Re: Royal Navy Super Battleships and Battlecruisers

Indeed, one can view such an engagement from either a tactical or operational perspective. From the tactical point of view, replacing AGS with Scharnhorst would have conferred important tactical advantages upon the Germans: better armor, 50pct larger main battery with better model guns in the bargai...
by Byron Angel
Sat Mar 06, 2021 5:57 pm
Forum: The Dreadnought Era (1906-1921)
Topic: Royal Navy Super Battleships and Battlecruisers
Replies: 124
Views: 70093

Re: Royal Navy Super Battleships and Battlecruisers

Hi HMSVF,
I moved down to South Carolina about five years ago from Boston MA. Do not underestimate the skill of a "redneck" with any sort of firearm. Believe me!

:cool:

Byron