How do you know what size electric motor to use when your building and airplane? I would love to learn all the codes which discribe the motor and ECS.

A good starting point is the watts per pound rule.

You can start by reading these and I am sure you may have more questions. So fire away everyone here is always willing to help.

http://www.e-fliterc.com/ProdInfo/Fi...equirement.pdf

http://www.geistware.com/rcmodeling/...ower/index.htm