RobGoldsmith writes "Earlier this week images were appearing on the Net showing the WhiteKnightTwo craft doing some tests in Mojave. The earliest tests showed perhaps two of the engines being used, while a later test showed all the engines working and some further testing. Today the four Pratt & Whitney Canada PW308A engines finally carried the craft into the air. The maiden flight of the WhiteKnightTwo lasted just shy of one hour and happened today at around 08:15 local time, at Mojave air and spaceport. Rumors suggest that a Beechcraft King Air was used for a chase plane. The craft will be used to position Virgin Galactic's SpaceShipTwo craft to fly into space; this is estimated to happen around 2010."