FutureFlight
Bye Aerospace Signs Deal with Safran Electric Motors
Bye, an electric airplane pioneer, has picked French engine-maker Safran to power its eFlyers.
Safran ENGINeUS motor
Safran's ENGINeUS electric motor will power Bye Aerospace's eFlyer 2 and eFlyer 4 aircraft. (Photo: Christel Sasso/Safran)

Bye Aerospace has signed a cooperation agreement with France-based Safran Electrical & Power to equip its eFlyer 2 and eFlyer 4 aircraft with its 100 kW EngineUs electric smart motors. The motors will replace the Siemens SP70D motor, which has been used to power the eFlyer 2 prototype during development work.

The EngineUs 100 unit, which will equip the two fixed-wing all-electric aircraft, features a fully integrated motor controller. Thermal management is handled by an optimized air-cooling system jointly integrated into the airframe by the engine maker and the airframer. According to Safran, the motor will deliver a power density of 2.5 kW/kg at 2,500 rpm.