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Old May 18, 2011, 04:03 PM
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Originally Posted by robtest View Post
Isn't the stock motor a 15 size vs. his new 25 size ??? I would think it should be somewhat faster
The stock motor is what they call a "15-sized brushless" I think they're basing it on the size of the motor housing and a close approximation to the Power 15 kV and watt rating. However, that aside, "size" doesn't matter (no juvenile snickering, please!) The kV (RPM per volt) of the motor and it's watt rating is what matters in terms of speed.

If you could make it fit, the Eflite Power 32 motor with the stock battery and prop would actually make the Apprentice go SLOWER than the stock motor, because the Power 32 is only 770kV vs the 870kV of the stock plastic motor.
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