Virgin Galactic has successfully completed the third rocket-powered supersonic flight of its passenger-carrying reusable space vehicle, SpaceShipTwo (SS2).
The spaceship hit its planned altitude of 71,000 ft. - SS2's highest altitude to date - and a maximum speed of Mach 1.4. SS2's unique feather re-entry system was also tested during the flight.
Two important SS2 systems, the RCS and thermal protection coating, were successfully tested during the flight in preparation for upcoming full space flights. The spaceship's RCS will allow its pilots to maneuver the vehicle in space, permitting an optimal viewing experience for those on board and aiding the positioning process for spacecraft re-entry. The new reflective protection coating on SS2's inner tail boom surfaces is being evaluated to help maintain vehicle skin temperatures while the rocket motor is firing.
SS2's propulsion system has been developed by Sierra Nevada Corp and is the world's largest operational hybrid rocket motor. Although the test flight saw it burn for a planned 20 seconds, the system has been successfully tested in ground firings to demonstrate performance characteristics and burn time sufficient to take the spaceship and its private astronauts to space.
Commenting on the successful test flight, Sir Richard Branson, part owner of the spaceline said, "I couldn't be happier to start the New Year with all the pieces visibly in place for the start of full space flights. 2014 will be the year when we will finally put our beautiful spaceship in her natural environment of space. Today, we had our own Chief Pilot flying another flawless supersonic flight and proving the various systems required to take us safely to space, as well as providing the very best experience while we're up there."
This flight was the third opportunity to see a supersonic, rocket-powered test of the Virgin Galactic system after dozens of successful subsonic test flights.
"Today's flight was another resounding success," said Virgin Galactic CEO George Whitesides. "We focused on gathering more transonic and supersonic data, and our chief pilot, Dave, handled the vehicle beautifully. With each flight test, we are progressively closer to our target of starting commercial service in 2014."