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A4 - Interceptor
400 - What
pinion should the motor use as standard ?
If you are
using the standard Acer Lab motor, then you can use a pinion with
between 11 and 14 teeth, depending on how high a head speed you
The more teeth
on the pinion, the higher head speed you will get. The Int 400 likes
a head speed of around 2250 rpm, so if you have a rpm meter try to
get it to that speed just before take off.
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