World's largest all-composite aircraft makes successful maiden flight

Designed to launch rockets into low Earth orbit, the dual fuselage Stratolaunch took off at 0658 local time on April 13, 2019 from the Mojave Air & Space Port in California.

Powered by six Pratt & Whitney PW4056 engines, the 238’ (73m) long aircraft achieved a maximum speed of 189mph during its 2.5 hour sortie over the Mojave Desert.

“What a fantastic first flight,” said Jean Floyd, CEO of Stratolaunch Systems Corporation. “[The] flight furthers our mission to provide a flexible alternative to ground launched systems. We are incredibly proud of the Stratolaunch team, today’s flight crew, our partners at Northrup Grumman’s Scaled Composites and the Mojave Air and Space Port.”

As part of the initial flight, the test team conducted standard aircraft testing exercises, including flight control manoeuvres to calibrate speed and test flight control systems, including roll doublets, yawing manoeuvres, pushovers and pull-ups, and steady heading side slips. They also conducted simulated landing approach exercises at a maximum altitude of 15,000 feet mean sea level.