smitty71,

The AA Jet has the same Tx & Rx as the bipe. The Jet motors are a little longer and have more rpm and torque than the bipe.
No other differences.
If you are buying one to hack, I prefer the jet due to the more powerful motors. IMO

Tony Selbee
ARS Software & Innovative Solutions
http://www.falcon1.net/~ars/rcmodels.html