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Old 03-25-2009 | 07:42 PM
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KitBuilder
 
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Default RE: Engine sizes for different weight/class aircraft?
I was reading an old RCM today in "the office" (I have many older issues) and came across a tip from the editors that stated multiply AUW by .08 to get the 2 strok size.. then x 1.5 to get the 4 stroke size taking into account type of model, etc. So 5 lbs x .08 = .40.. sounds right.
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