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Old 10-10-2020, 01:48 PM
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jsullmutus1NE$
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What OS Max 4 stroke engine would be comparable to a Fox .35?
Old 10-10-2020, 04:38 PM
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gene6029
 
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Over on Stunthanger there is a forum on 4 strokes only. The guys are flying Ringmasters on OS 20, 26 , and 30 size four strokes. I believe the S-1 Ringmaster was flown on the Fox .35 engine in its hay day. So id think some where around the 30 range would be a close approximation. Today the OS 25FP will fly the S-1. However there is going to be a difference in engine weight to consider between the Fox .35 and a 4 stroke engine. Not really alot of help i guess, but at least you can check out the site mentioned above and either ask there or read thru the threads there. Lots of 4 stroke info there..........Gene

Last edited by gene6029; 10-10-2020 at 04:47 PM.
Old 10-11-2020, 09:12 AM
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jsullmutus1NE$
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Thanks. I'm designing a "semi" scale stunter that has a very short nose so the weight of a 4 stroke is a benefit. I'm also looking at electric - lighter construction being a benefit. I'll check out the Stunthangar location.

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