lots of power... use it wisely. a largeish prop of say 11x4 maybe as much as a 12x4 on a 46?? should keep the speeds down and give pleany of thrust if the instructor needs to take it back. fly it on low rates, and if you've got a sim, start flying. the FMS one is a free download and is as stable as a elephant on a pin, good start hey theres a link to the FSM site on our club site. www.rcflyers.net