Virgin Galactic, the world’s first commercial spaceline has completed the first rocket-powered flight of its space vehicle SpaceShipTwo (SS2).
The test, conducted by teams from Scaled Composites (Scaled) and Virgin Galactic, is said to mark Virgin Galactic’s entrance into the final phase of vehicle testing prior to commercial service from Spaceport America in New Mexico.
In a statement Sir Richard Branson, founder of Virgin Galactic said, ‘The first powered flight of Virgin Spaceship Enterprise was without any doubt, our single most important flight test to date.
‘For the first time, we were able to prove the key components of the system, fully integrated and in flight. Today’s supersonic success opens the way for a rapid expansion of the spaceship’s powered flight envelope, with a very realistic goal of full space flight by the year’s end.’
The test began at 7am local time when SS2 took off from Mojave Air and Space Port whilst connected to WhiteKnightTwo (WK2), Virgin Galactic’s carrier aircraft.
Piloting SS2 were Mark Stucky, pilot, and Mike Alsbury, co-pilot, who are test pilots for Scaled, which built SS2 for Virgin Galactic. At the WK2 controls were Virgin Galactic’s chief pilot Dave Mackay, assisted by Clint Nichols and Brian Maisler, co-pilot and flight test engineer, respectively, for Scaled.
Upon reaching 46,000 feet altitude and approximately 45 minutes into the flight, SS2 was released from WK2. After cross-checking data and verifying stable control, the pilots triggered ignition of the rocket motor, causing the main oxidizer valve to open and igniters to fire within the fuel case. SS2 was then propelled forward and upward to a maximum altitude of 56,000 feet. The entire engine burn lasted 16 seconds. During this time, SS2 went supersonic, achieving Mach 1.2.
The entire rocket-powered flight test lasted just over 10 minutes, culminating in a smooth landing for SS2 in Mojave at just after 8am local time.
In the coming months, the Virgin Galactic and Scaled test team will expand the spaceship’s powered flight envelope culminating in full space flight, which the companies anticipate will take place before the end of 2013.