SpaceShipTwo goes supersonic in milestone flight

SpaceShipTwo flight

Virgin Galactic’s SpaceShipTwo rocket plane, christened VSS Unity, fires up its hybrid rocket motor for the first time. (Mars Scientific / Trumbull Studios Photo)

Virgin Galactic’s second SpaceShipTwo rocket plane flew a smooth, supersonic test flight today during its first rocket-powered outing since the first SpaceShipTwo broke up three and a half years ago.

The craft christened VSS Unity has taken flight a dozen times since its debut in February 2016, but the previous 11 tests didn’t involve lighting up the plane’s hybrid rocket motor.

That’s what made today’s flight test at California’s Mojave Air and Space Port special: After carrying the plane and its two pilots to an altitude of about 46,500 feet, Virgin Galactic’s White Knight Two mothership, known as VMS Eve, released Unity from its underbelly.

Seconds later, the pilots turned on Unity’s engine for the first time.

Get the full story on GeekWire.

About Alan Boyle

Aerospace and science editor for GeekWire, creator of Cosmic Log, author of "The Case for Pluto: How a Little Planet Made a Big Difference," president of the Council for the Advancement of Science Writing. Check out "About Alan Boyle" for more fun facts.
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