Stratolaunch’s massive carrier aircraft performed a taxi test down runway 12-30 at the Mojave Air and Space Port on Friday afternoon.
The airplane, which is designed to air-launch rockets, appeared to make several short moves at the southeast end of the runway before beginning its taxi test. It stopped twice during the taxi test before arriving at the end of the runway.
The twin-fuselage plane veered to one side on several occasions during the test, resulting in the pilots correcting the vehicle’s path. It was not clear whether this movement was part of the test.
The aircraft, which has a wingspan of 385 ft (117.3 m), was towed backwards along the runway before being returned to its hangar.
Scaled Composites built the aircraft with funding from Microsoft billionaire Paul Allen.