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Old Dec 20, 2002, 11:12 AM
mkirsch1 is offline
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United States, NY, Spencerport
Joined Oct 2001
2,801 Posts
You know the propeller is turning the wrong way when the airplane wants to go backwards.

In all cases, you want the propeller to blow air toward the rear of the plane. Usually, you can flip the propeller by hand fast enough to tell which way the wind will blow when it's turning. You can also use a couple of "D" alkaline batteries to spin the motor and test it before you go soldering the speed control on.
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