XFLY TWIN EDF 70MM B-1B LANCER With Out TX/RX/BATT/CHAR XF112PXFLY TWIN EDF 70MM B 1B LANCER With Out TX RX BATT CHAR complete with retracts, servos and operating swing wing mechanism. The B 1B Lancer, nicknamed The Bone, is a supersonic, variable sweep wing, heavy bomber used by the United States Air Force for long range and multi mission purposes. The XFly Model B 1B Lancer twin 70mm EDF jet is a scale replica of this aircraft, designed with meticulous attention to detail, such as the swept wing mechanism,