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Old 06-15-2009 | 06:44 PM
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raziel1
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From: canton, OH
Default RE: OS Engine Expert needed....engine
is it all the time or does it do it in a dive more them in level flight ?
could be over reving the motor  due to a small prop . 
i us 14x6 or 15x6 apc  prop and see if it  runs better
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