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Posted: 8/25/2004 3:11:43 PM EST
I have looked for 1/2 hour on the net for info on the following:

Carriage, Gun 40MM M2A3  made by the Firestone Tire & Rubber Co.

Can anyone help me out with a link or picture???


Link Posted: 8/25/2004 3:22:13 PM EST
The only thing close i find is for the 75mm on a M2 halftrack, that was the M2A3 Gun Motor Carriage.

You 100% on that nomenclature? Where did it coem from?
Link Posted: 8/25/2004 3:23:54 PM EST
It's off of an old ID plate, and is dated 1942.

Link Posted: 8/25/2004 3:25:13 PM EST

Originally Posted By Balming:
It's off of an old ID plate, and is dated 1942.


Any other info on it? Specificly, is there a number that reads G-xxx, like G-503?
Link Posted: 8/25/2004 3:29:13 PM EST
well i found a manual for it but no pics....
Link Posted: 8/25/2004 3:29:42 PM EST
Top of plate : "No 7964"

Bottom: "HMR"

Link Posted: 8/25/2004 3:31:12 PM EST

There is the chrysler version, it held the 40mm M1 gun
Link Posted: 8/25/2004 3:34:36 PM EST

I knew someone here could help me out!

Link Posted: 8/25/2004 3:35:41 PM EST
[Last Edit: 8/25/2004 3:36:18 PM EST by Garand_Shooter]

top right

If you have one I can point you toward parts
Link Posted: 8/25/2004 3:53:07 PM EST
[Last Edit: 8/25/2004 3:56:29 PM EST by Palo_Duro]
The 40mm AA gun is usually called a Bofors, after the Swedish designers. The same basic gun was used in either single mounts, twin mounts, or quad mounts by both the US Army and Navy, and also by many allies during WW2. The Air Force AC-130 gunships still use the 40mm single gun along with a 105mm howitzer and one or more 20mm Vulcan "Gatling" guns.

A friend of mine used to be associated with that operation, and reportedly they depended on the US Navy Battleships converted to museums as a source of spare parts to keep the 40mm guns operational. Your rig should have four 6.00x20 pneumatic tires and two folding outriggers on the carriage and four leveling jacks. Overall length 19 feet, width 6 feet, height 7 feet. Road clearance 14 inches and weight 5,549 lbs.

These were towed by a 6x6 truck. Rate of fire was 120 rounds per minute, with maximum effective range of 3,000 yards with a muzzle velocity of 2,870 feet per second using a 2 pound projectile and .65 to .72 pound propelling charge. (In case you needed reloading data!) Ammunition was loaded into the gun on four round clips. There are several tech manuals related to the guns and carriages and I can provide numbers if you want to try to track them down. The Army referred to the single as "40mm Automatic Gun M1 on carriage M2 or M2A1". Therefore I suspect your data plate refers to the mount, not the gun. Hope this helps.

edit: forgot to add link. oldguns.net/cgi-bin/f2f/f2f.pl?http://oldguns.net/q&a12_00.htm

A little more than half-way down the page.
Link Posted: 8/25/2004 4:06:03 PM EST
Current gen AC-130 has:

1 105mm howitzer

1 40mm bofors

1 25mm gatling gun

There used to be a reserve squadron, which still flew the origional A model. 2 7.62mm miniguns, 2 20mm vulcans, 1x40mm bofors. I don't know if they are still commissioned.
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