Here’s an artist’s impression of the new design of SpaceShipTwo and White Knight Two:

Perhaps the biggest change not previously hinted at is the dual cabin design of WK2; the number of engines on the aircraft as well as the changed wing location had been previously reported. Skimming through the press release (available, along with many more illustrations, here) and the various media accounts, I did not see much in the way of other new developments and insights, but not being at the event, I may be missing something that will come to light later as other accounts are published.

Virgin Galactic and Scaled Composites will be formally unveiling the design of SpaceShipTwo and its carrier aircraft, White Knight Two, at an event in New York today. Interesting, there hasn’t been much buzz leading up to this event: a preview in the UK newspaper The Telegraph yesterday is one of the few advance stories about the event. Attendance at the New York event appears to be very limited as well. I was unable to secure an invitation to the event despite considerable effort, and one company official said they were “heavily oversubscribed” (which begs the question of why they simply didn’t secure a bigger venue, but, oh well…)

This design is thought to be somewhat different than the artist’s conceptions that Virgin has been showing off for over a year. In a speech in Alabama last August, Burt Rutan said SS2 would have a low wing instead of the high wing on SpaceShipOne, and that WK2 would have four jet engines instead of two. We’ll see later today if that’s accurate, and what other design changes are in store.