They are using the new axi outrunner 2826/12 swings a 14x5 prop 9000rpm on 4 cell 2000 lipo pack. power to weight is balistic. They are sold out supplying euro market, eventually you and I can get one from hobbylobby in 2 or 3 years. should sell for about $100. Our US foamy producers only know how to make small cheap poor flying flimsy profile type birds.