SpaceShipTwo was in the air on Friday, as WhiteKnightTwo did a 1.5 hour test flight with the ship attached to its belly.

The competition heats up: SpaceShipTwo was in the air on Friday, as WhiteKnightTwo did a 1.5 hour test flight with the ship attached to its belly.

This was the second flight of WhiteKnightTwo in three days, and is in line with Virgin Galactic’s test flight schedule announced in May. If the test flights go well, expect that first rocket-powered flight of SpaceShipTwo later this year.

Test flights of SpaceShipTwo resume

After a summer break, the flight tests of SpaceShipTwo have resumed. Thursday’s test appeared to a bit more exciting that previous flights:

Test card called for releasing the Spaceship from WhiteKnightTwo and immediately entering a rapid descent. Upon release, the Spaceship experienced a downward pitch rate that caused a stall of the tails. The crew followed procedure, selecting the feather mode to revert to a benign condition. The crew then defeathered and had a nominal return to base. Great flying by the team and good demo of feather system.