Oops. Sorry didn't realize there were multiple versions. Yes mine is the 40 size. If there is such a thing I've got clearance for a 13.5" prop. Got the following recomendation at ezonemag.
"Besides Maxcim, an Astroflight Brushless 25 geared motor or an AXI 4120/18 will work well. Get a 5s Tanic pack that is capable of 50 amps and a Castle Creation 45 amp or greater controller. You will also either need a Rx battery or a UBEC for the servos. I would suggest the UBEC.
Your biggest issue will be the limit on prop diameter due to the pylon. How big of a prop can you mount on the pylon?
http://www.astroflight.com/e/env/00...oducts:af-825gm
http://www.hobby-lobby.com/brushless-axi4120.htm
http://www.tanicpacks.com/
http://www.koolflightsystems.com/ultimatebec.htm"
I'd appreciate your feedback.
Thanks. -steve-