3D Printed Aerospike Engine Tested on MIRA II Spaceplane

German aerospace start-up POLARIS Spaceplanes has completed successful roll and flight tests of its aerospike-powered MIRA II demonstrator. The five-meter-long prototype features POLARIS’ 3D printed AS-1 linear aerospike rocket engine. MIRA II serves as a stepping stone to the company’s full-sized AURORA spaceplane, which is set to begin flight operations in 2028.   MIRA II was […]