And if you don't know the aerodynamic characteristics of your plane, Moto Calc's lift and drag coefficient estimator will make short work of determining them.
By producing a table of predictions, Moto Calc lets you determine the optimum propeller size and/or gear ratio for your particular application.
How to Register Registering the CD Version Registering the Evaluation Version If You Can't Print the Registration Form If You Don't Want to Register If You Lose Your Registration Using Moto Calc on More than One Computer Moto Calc is a program for predicting the performance of an electric model aircraft power system, based on the characteristics of the motor, battery, gearbox, propeller or ducted fan, and speed control.
You can specify a range for the number of cells, gear ratio, propeller diameter, and propeller pitch, and Moto Calc will produce a table of predictions for each combination.
Moto Calc's graphing facility can plot any two parameters against any other (for example, lift and drag vs. If you have particular requirements, such as a minimum run time, maximum current, or maximum power loss (which is dissipated as heat), you can use Moto Calc's filter facility to filter out the unacceptable combinations.
To reduce the amount of information you have to deal with, Moto Calc comes with a database of motors, cell types, gearboxes and propellers, speed controls, and filters.