WinHeli is a small tool that will help you perform common calculations useful for radio controlled helicopter fliers.
For example, you can calculate the glow plug fules percentage or the Gasser / Petrol 2 stroke ratio, using US Gallon, Fluid Ounce or Metric liter as a measuring unit.
Calculations include:
Glow plug engine fuel ratio calculations
Gasser / Petrol / Benzine fuel ratio calcuations
Metric to US conversions of length, torque, volume and temperature
Gear calulations by head speed, engine speed and ratio
NiCad battery charging rates