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Contra Rotating Propeller Drive for f3a 2m Pattern Planes
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08-02-2012 | 03:21 PM
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Brenner
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From:
Bridgman, MI
RE: Contra Rotating Propeller Drive for f3a 2m Pattern Planes
Hey Brian,
Here in North America the AMA rule is 2m or less for AMA classes. FAI classes get the 1% tolerance.
Brenner ...
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