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 Author  Topic: M-2 Aircraft .50 caliber machine gun
Frank J Andruss Sr

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The M-2 Aircraft 50 caliber machine gun was used on PT Boats. The M-2 had a shorter barrel and weighed less then the standard 50 caliber. It had a higher rate of fire as well, although a shorter range. The basic aircraft gun came without a trigger or the side bracket with the charging handle called the retracting slide group (RSG). PT boats used this basic gun along with a mount supplied trigger and usually a simple bolt handle for charging the gun instead of the RSG. Unlike the RSG, which operates against a short stud and remains stationary during firing, the bolt handle travels back and forth with the bolt. The guns were belt fed from curved ammo boxes inside the turrets.

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Travis B

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Travis B   Send Email To Travis B Posted on: Jul 8, 2022 - 8:23am
Frank, where did you get the first picture of the sailor manning the twin m2 machine guns? What PT boat is this from?


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Frank J Andruss Sr

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Frank J Andruss Sr   Send Email To Frank J Andruss Sr Posted on: Jul 8, 2022 - 11:11am
Travis this is just one of the photos I have that has no description or boat number. I have many photos like that that I wish I could find out more information


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Jeff D

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Jeff D   Send Email To Jeff D Posted on: Jul 8, 2022 - 1:35pm
I'm with you there Frank.

The photo came from one of my favorite sites, Gene Kirkland's PT King. The only info I have about it is Morobe in its name although I don't see it in the many pages of photos under the Morobe New Guinea July-October 1943 link. For any that haven't seen it before there is lots to read and see there. Our fearless leader Dick Washichek hosts it here: http://www.pt-king.gdinc.com/


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Frank J Andruss Sr

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Post a Reply To This Topic    Reply With Quotes     Edit Message     View Profile of Frank J Andruss Sr   Send Email To Frank J Andruss Sr Posted on: Jul 9, 2022 - 5:09am
Thanks Jeff that is a really informative site


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