Heli Rotor RPM Calc в Android Market

Heli Rotor RPM Calc (v. 1.1) Разработано Simply Tools

An easy tool to calculate the main rotor speed of an electric RC helicopter. It lets you play with the parameters to match you needs and i.e. select a new pinion for an new/other motor. Supports currently only simple conversion (pinion/main gear) setups in _governor_ mode.
Includes an option to calc the required pinion by simply entering the desired head speed.