Weapons Systems Tech.Discuss USAAF & US Navy Guns since 1930. in the Technical forums; Whith this topic I want to assemble detailed information about the barrel armament of the US air forces including the ...
Whith this topic I want to assemble detailed information about the barrel armament of the US air forces including the Navy and U.S Army from 1930 up to the operations in Irak in 2003.
Evidently to cover the entire subject with a decent amount of information per every weapon is not an easy task, fortunately to me the argentine DNA have a fairly big and well know component of excessive self confidence.
Last edited by CharlesBronson; 02-28-2009 at 10:33 PM.
Muzzle velocity of the 12,7x99mm varied between 840 to 890 mps. The M2 AP could penetrate 19 mm of rolled homogeneous armor at 150 meters in a 90º incidence, the M8 penetrated 22mm of the same material at 300 meters.
The M2 puff on impact had also the same efect of the B-patrone used by the germans complementing the tracers, In fact the tracer ammunition almost desapeared from the belt of USAAF Fighter aircraft deployed in Europe since april 1944 . The Navy fighters and USAAF bombers continue to use it up to the end war .
Various efforts to speed up the gun resulted in the T36 development by High Standard, which raised the RoF by about 100 rpm and was adopted in late 1944 as the M2A1. Only 8,000 were made before it was replaced by the faster-firing M3 (which was developed by Frigidaire as the M25E3). Only 2,400 M3 guns had been procured by the end of WW2.
Wao...sticky with just one post, THAT is confidence.
Development of the Browning cal .30 part II.
In Chinn's remarks about the 30 being the primary air weapon, he is correct in general but all the B-17s at that time (B-17D's) and few B-17C's not yet converted had converted from 30 to 50's with only the flexible nose mount 30 cal remaining.
CB - Good work. Almost as good as some other specific postings on bionic flotation devices.
At Bell, we toyed with Col Chinn's 30mm derivative of the Mk 108 on the marine AH-1J cobra but it's cyclic rate was almost a macth for the natural frequency of the helicopter airframe... that's a 'bad thingy' for crews wishing to match a landing with a take off
Yup, the Navy fighters of the time use dalmost exclusively .50 MGs, the Army Air Corps P-40, P-39 and others had a combination of light and heavy Brownings however.
CB - Good work. Almost as good as some other specific postings on bionic flotation devices.
Some are plastic flotation devices too, thank you
At Bell, we toyed with Col Chinn's 30mm derivative of the Mk 108 on the marine AH-1J cobra but it's cyclic rate was almost a macth for the natural frequency of the helicopter airframe... that's a 'bad thingy' for crews wishing to match a landing with a take off
Interesting, what was the name or model of it ?
M3 in F-86 Sabre.
Last edited by CharlesBronson; 03-02-2009 at 07:40 PM.
The Hispano Suiza HS 404 was a development of Mark Birgkit, swiss engineer of the French-Spanish-Swiss firm in 1936.
Both the UK and USA were very interested and purchased Birgkit design modifing it for several fitting and purposes.
The caliber was 20x110mm, action type was combined short-recoil/gas, with a tilting breech.
Rate of fire originally was 600 rpm later increased in British models.
It was installed in P-38, P-39, P-400 and several types of Navy aircraft.
Ahh but the more diminutive streamlined versions are more to my taste (literally) than the massive devices that would support a tank
Interesting, what was the name or model of it ?
It was a factory retained, USMC funded AH-1J. We also tested blast blankets on the ammo bay doors to withstand Zuni 5" launch blast. Didn't work too well.
Originally Posted by CharlesBronson
Wao...sticky with just one post, THAT is confidence.
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