And as a turbine flyer for about 13 years, lets not forget all the times when the turbine did not start good or at all, or quit in the air for some unknown reason, or has some kind of problem that makes it necessary to send back to the manufacturer for service and hope your bill is under $800. Plus shipping which can be expensive because of the weight. Oh, and you are hoping you get it back less than 1 month so you can enjoy your hobby.