Ratio Calc is a quick and easy tool for radio control car racers to use trackside. Knowing your final drive ratio (FDR) is very useful for comparison with other racers to determine if your car is geared correctly. You can also view your favourite information on Apple Watch. It lets you quickly select your car by filtering on manufacturer and model. Select your pinion and spur size and the FDR is displayed. Tyre diameter can also be entered to calculate your rollout. Ratio and roll out charts are also available which plot pinion and spur gear combinations to create very handy reference table
Ratio Calc! is a free educational mobile app By David Mills.It helps students practice the following standards .
Developer URL: http://www.sllim-code.com/ratio-calc
Software Version: 6.6
Release Date: 2011-05-12T21:10:44Z