Scaled Composites Model 401

Twin Jet

The Scaled Composites Model 401 is an experimental twin-jet research aircraft developed by Burt Rutan's legendary Mojave-based aerospace company, known for pushing the boundaries of unconventional aircraft design. Built in the mid-2000s, the Model 401 served as a testbed for advanced aerodynamic concepts and systems integration, continuing Scaled's tradition of rapid prototyping for both commercial and defense applications. The aircraft features a sleek, low-wing configuration with twin jet engines, representing a departure from many of Scaled's earlier composite pusher designs. With a maximum takeoff weight around 7,000 pounds, the Model 401 occupies the light jet category and was designed for high-speed research missions rather than operational service. Scaled Composites has historically maintained tight operational security around its experimental programs, and the Model 401 is no exception: detailed performance specifications remain largely unpublished. The aircraft has been observed operating from Mojave Air and Space Port under experimental certification, where Scaled continues to develop cutting-edge aerospace technologies ranging from suborbital spaceplanes to high-altitude reconnaissance platforms. SkyMeter has tracked 1 flights across 1 airframes and 1 operators, with SCALED COMPOSITES LLC the sole observed operator.