19 ratings (4.000 average)
RC Gear Ratio Calculator!
You can easily calculate gear ratio with this app!
This app will help you when select gear.
How to use :
Fill blanks except one blank that you want to get.
Press Calculate button.
Last comments from Android Market
Does exactly what it says
Simple and effective.Does what it says on the tin. Ideal for calculating Nitro heli ratios. Could do with providing only numerical input and the