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Topic: Quad 50 cal machine guns |
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Wayne Traxel |
MASTER
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 Posted on: Jul 5, 2009 - 7:19am
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The late Lt. William Diver was skipper of PT-195 nicknamed Tootles when the M45 Quad 50 mount and Mk-12 20mm turret mounts were fitted.
Lt Diver poses in quad 50 mount for this crew photo, spare M 45 ammo chests are on the port side of chartreuse
The M45 Multiple Cal. .50 was mounted on Half Tracks, two types of trailers(that I know of), the USS Lexington CV-16, PT- 195 and 156 in WW-2. and would not be surprised if other PT's also had them. This Mount was also used in Korea. In Vietnam the M45 was mounted on small trailers, flat bed trucks and on the stern of a Swift Boat, PCF- 4. The Swift Boat crew acquired theirs from an engine-less truck.
The M-12 20mm mount was developed in the New York Navy Yard and first fitted to the forward Turrets of all Ron 9 boats upon arrival in New Caledonia on their way to the Solomons. Ron 12 also tested these mounts before leaving the States. PT-191 had them in both turrets for awhile but reverted back to the twin 50's by the time Ron 12 left the States. Teds statement about a couple of Ron 9 PT's having this mount in two turrets is news to me but no suprise. By wars end the Mk-12 mount began appearing numerous other PT's. PT- 115's forward turret and the late Mike Sharkeys PT-168 "Raidin Maiden" in the aft turret. I'm sure as time goes on more photographs of the Mk-12 mount and other un known mounts will surface.
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AlmKord
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Posted on: Jul 7, 2009 - 1:38pm
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Pretty cool.
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Chip Marshall
New Member
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Posted on: Jul 7, 2009 - 7:15pm
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I know it may be after the war and all, but in 1946 PT-620 was fitted with two B-29 (yes, the airplane) quad 50 gun turrets, one on the foredeck in the middle and the other in the port side gun tub on the day room. In addition, the 40mm cannon was replaced with an unmanned unit and the aft starboard torpedo rack was replaced with the brains for this weapons system. The controller was mounted in the forward starboard side gun tub. The conversion was done at the Brooklyn Navy Yard and tested in the live fire exercise areas off of Patuxent Naval Air Station in the Chesapeake Bay.
The deck logs on the 620 indicate that on one of the missions, they fired 7000 rounds of 50 caliber and 300 rounds of 40mm. The purpose was testing various weapons systems for the new aluminum PT boats then being designed. One of the early concept drawings for PT-809 shows four of these quad 50 turrets in a rectangular layout, not in echelon as the 80 foot Elco 50s were placed.
The system remained on the 620 into the late 1940s and was removed before the boat was transferred to the ROK Navy. Reference (no, this is not BS): pictures at PT Boats, Inc. show the modifications to the 620; the deck logs at the National Archives II facility in College Park, Maryland indicate when the modifications were made, when and where the testing was done, and how many rounds were expended on each mission.
Chip Marshall
Silver Spring, Maryland USA |
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victorkchun
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Posted on: Jul 11, 2009 - 8:39am
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Hi Chip,
You mentioned pictures from PT Boats, Inc. showing the modications to
the PT 620 with B 29 quad 50 gun turrets. Is it possible to post them
on message board for us to enjoy? Thanks so much.
Victor
Victor K Chun |
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starom
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Posted on: Sep 3, 2017 - 10:28am
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Good day,
I wanna build the model PT195. I saw photos in this theme, but unfortunatelly now they are deleted. So can you send this phtos on my email: treskov76@gmail.com
Roman
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Dick
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Posted on: Sep 3, 2017 - 1:21pm
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I reposted most images on this post that were lost to Photobucket - see each page again to view the photos.
Dick . . . .
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nahma
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Posted on: Sep 4, 2017 - 11:43pm
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http://www.navsource.org/archives/12/120519502.jpg
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nahma
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Posted on: Sep 4, 2017 - 11:43pm
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http://www.navsource.org/archives/12/120519502.jpg
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Jeff D
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Posted on: Sep 6, 2017 - 6:10am
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Thanks for your efforts once again Dick, where would we be without you? 
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