They definitely tested the engines on the ground[1]. You have to give the engineers the benefit of the doubt, at the very least. [1]: http://webcache.googleuse

They definitely tested the engines on the ground[1]. You have to give the engineers the benefit of the doubt, at the very least. [1]: http://webcache.googleusercontent.com/search?q=cache:JBrl96UlCQ8J:www.virgingalactic.com/news/item/virgin-galactic-rocket-motor-milestone/+&cd=10&hl=en&ct=clnk&gl=ca&client=firefox-nightly http://webcache.googleusercontent.com/search?q=cache:JBrl96U...