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Jan 02, 2013, 10:18 AM
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United States, FL, Tampa
Joined May 2012
35 Posts
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What would be the better powerplant?
I have a GP P-51: http://www.greatplanes.com/airplanes/gpma1205.html
I have two motors, an OS .60FP two stroke and a Magnum .70 four stroke. Which would be the better powerplant? Thanks for your input |
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Jan 02, 2013, 10:36 AM
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United States, WA, Port Angeles
Joined Dec 2009
1,812 Posts
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that 70fs should be perfict in that 51
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Jan 02, 2013, 12:29 PM
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United States, IA, Rockwell
Joined Jul 2011
2,038 Posts
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Yup, 70 4C is one of the recommended engines. Go for the .70 4C
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Jan 02, 2013, 12:32 PM
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United States, NY, Syracuse
Joined Oct 2008
2,995 Posts
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I think you'll find they're pretty close. The 60 is rated at 1.6 Hp and the 70 is rated at 1.1 Hp, but 2-stroke power ratings are a bit inflated since they usually run a tiny prop (not much thrust) to get the maximum power. I had one of those 60 FP's and it was plenty for a 6.5 lb plane... the 70 will probably swing a slightly bigger prop at a little lower RPM.
Since the 70 will sound better, I'd go with that. |
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