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Topic: Engine Idenity |
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Frank J Andruss Sr
TOP BOSS
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 Posted on: Jan 11, 2009 - 4:49pm
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Jerry and Dick
Thanks so much for the great photos and the drawings. So in retrospect, the Hall Scott Engines were in MRB-2, and the Supercharged Vimelert engines were in PT5 and PT 6? Or, were Packard Marine Engines in both the first Higgins built Sparkman & Stevens design boat, and Higgins own designed second PT 6. Jerry, sorry about the hard questions, it sems that some books I have read shed a different light as to what engines were in which boats.
Now, the other photo I sent showing the Vimelert engines, which do not appear to be supercharged and look nothing like the photo's Jerry just posted, are what? It seems this should be a pretty easy thing here. Dr. Ross, can you shed any light on this issue..........
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Dick
Moderator
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Posted on: Jan 11, 2009 - 5:27pm
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According to the book “Adrew Jackson Higgins” by J.E. Strahan, page 43 states PT-6 (the first one) was powered by Packard engines during the April 1940 Navy test on Lake Pontchartrain. There is no mention in the book as to the Engines for PT-6 (Prime) Higgins better version of PT-6. I would assume they were also Packards. Else where in the book it talks about PT-5 as being under powered with it’s three Vimalert engines.
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rcr
New Member
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Posted on: Jan 12, 2009 - 8:06pm
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Seven Packard 3M-2500 engines were built. Two for PT 3 Two for PT 4 and three for PT 6. PT 5 was powered by three 1,200 h.p Sterling Vimalert engines. PT 6 prime had three Packard 4M 2500 engines as the 3M 2500 was redesigned and the new engine designated 4M 2500.
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Frank J Andruss Sr
TOP BOSS
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Posted on: Jan 13, 2009 - 2:38am
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Dick, Jerry and RCR
Thanks very much for the outstanding effort you made to clear up this matter on the early boats. I can now add photos to the book in good concience knowing we are correct in what power-plant went with which boat. One thing is for sure, this message board is a wonderful mix of folks who go out of their way to help one another. Its one of the best on the web.........
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