Dedicated to the Promotion of Electric Propulsion in all types of Aeromodeling

Online Calculators

Some of you may be curious about how to improve the performance of your planes.  On this page you will find two calculators: One for determining the performance you want for your plane and the other for finding the correct CG.

Many of today’s ARFs do not require you to know any of these things but sometimes they don’t get them right.  Many times you can improve performance simply by doing the simplest thing: changing the prop.  You can go further and change battery and even the motor to get the speed and climb you desire.

Helpful calculators with instructions