Printing This Manual If you prefer a printed version of this manual, we suggested printing the Adobe PDF version, which can be found on the Moto Calc CD (as of version 8.03) in the file "Moto Calc.pdf".
A copy can also be found on the Moto Calc web site at If you don't wish to print it on your own printer, it can be printed at most copy shops.
Moto Calc can also do an in-flight analysis for a particular combination of components, predicting lift, drag, current, voltage, power, motor and electrical efficiency, RPM, thrust, pitch speed, propeller and overall efficiency, and run time at various flight speeds.
It will also predict stall speed, hands-off level flight speed, throttle, and motor temperature, optimal level flight speed, throttle, and motor temperature, maximum level flight speed, rate of climb, and power-off rate of sink.
For example, if the Moto Wizard is suggesting a 4:1 gearbox and 12x8 propeller, but you know you can only obtain a 3.7:1 gearbox, change the gear ratio (and perhaps decrease the propeller size slightly).