Stratolaunch took the “fifth” on May the 4th, otherwise known as Star Wars Day. Today brought the fifth flight test for Stratolaunch’s 385-foot-wide carrier aircraft, known as Roc (in a nod to the giant bird of Middle Eastern mythology).
Roc ranks as the world’s largest airplane by wingspan, and is designed to carry and release the company’s rocket-powered Talon-A hypersonic vehicles for military and commercial applications.
Seattle billionaire Paul Allen, the late co-founder of Microsoft, founded the venture in 2011 — but after Allen’s death in 2018, ownership was transferred to a private equity firm. Like Virgin Galactic and Virgin Orbit, Stratolaunch takes advantage of air-launch technology pioneered during the award-winning SpaceShipOne campaign that Allen bankrolled nearly two decades ago.
Roc took off from California’s Mojave Air and Space Port at 7:39 a.m. PT today for a flight that lasted four hours and 58 minutes and reached a maximum altitude of 22,500 feet. Stratolaunch took note of the Star Wars Day connection in a post-landing tweet. “The force is strong in this plane,” the company said.
The test’s prime objective was to check the aerodynamic performance of a new pylon added to Roc’s center wing section.