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Old 10-29-2005 | 05:56 PM
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BWooster
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Default RE: Calculating control surfaces pressure?
You can get a fair estimate by multiplying the pitch of the prop, by maximum rpm of the motor by about 110%.

For example, 15 cm pitch times 10000 rpm is 1500m/min or 90km/h times 1.1 = 99 km/h.

There are charts on the web for calculating this too.
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