Lilium reports it has successfully completed the first series of tests of its electric jet propulsion unit. “For the first time, the electric engines were taken up to maximum thrust on the propulsion unit test bench, representing a landmark achievement on the journey to zero operating emissions flight and an important step towards verifying safety of flight of the Lilium Jet,” said the company in a press statement. “The tests performed have demonstrated the expected level of performance and reliability, bolstering Lilium’s confidence in the maturity of its electric jet propulsion system.
“Testing of the propulsion unit, comprising two engines within a propulsion mounting system, was carried out at Lilium’s dedicated propulsion unit test bed, located at Lilium’s headquarters near Munich. The test bed has been designed for aerodynamic and electrical performance evaluation of Lilium’s jet technology.
“The successful first test of the propulsion unit follows comprehensive testing of the engine, developed and built in collaboration with Lilium’s team of suppliers, including Denso and Honeywell for the e-motor, Aeronamic for the compressor fan, and SKF for the electric motor bearings.
Lilium reports it continues to gear up for initial series production of the Lilium Jet propulsion unit at its propulsion assembly line near Munich. Aerostructures supplier Aernnova recently completed the first build of the Lilium Jet propulsion mounting system, the structure that houses the propulsion and vectoring systems and forms the rear part of the wings and front aerofoils. Earlier this month, the Spanish industrial engineering and technology group Sener delivered the first set of servo-actuators for the Lilium Jet. The servo-actuators enable the propulsion units to be rotated, allowing the aircraft to transition from vertical flight mode (during take-off and landing) to horizontal flight and vice versa. Propulsion units coming off Lilium’s production line in the coming months will be used for ground testing and integration in the first flight aircraft.
For more information