magni650 direct-drive electric aircraft motor

The magni650 is a direct-drive electric aircraft motor from magniX, rated in the 700 kW class and designed as the propulsion unit for fixed-wing electric and hybrid-electric aircraft. It is offered as a standalone motor or as part of a complete magniX powertrain.

The maker positions the magni650 for single and light-twin turboprop airframes and for hybrid regional aircraft. The motor has been used in flight tests, including magniX's work with NASA in the agency's Electrified Powertrain Flight Demonstration programme, so it is a motor for which a flight-test record exists.

The main figures are a continuous power of 515 kW and a peak power of 700 kW, both at a rated shaft speed of 2,300 rpm. For an integrator, the continuous rating sizes the cruise and climb power available to the propeller, and the peak rating covers short high-power phases such as take-off. Because the motor drives the propeller shaft directly at 2,300 rpm, no gearbox is needed, which removes a mechanical stage from the installation. The dry mass is 144 kg, and the maximum altitude is 25,000 ft.

Electrical and thermal integration is defined by the supply voltage of 500 to 850 VDC, which must match the aircraft's high-voltage battery or fuel-cell bus and its power electronics. The motor is liquid-cooled, so the airframe needs a coolant loop with a heat exchanger sized for the losses at the chosen power. The envelope is 715 mm in height and 675 mm in diameter. Control and protection functions are segregated, with a stated design assurance level of DAL A.

Typical applications are electric and hybrid-electric regional aircraft, converted turboprops, and demonstrators in which a high-voltage battery or a hydrogen fuel-cell system supplies the electrical power. Buyers should confirm the full interface and certification information with magniX, which provides the complete specification sheet on request.