What happens in this video ?
This stealth B-2 bomber crashed during takeoff from Andersen Air Force Base in Guam on February 23rd 2008.
The Air Force's Air Combat Command issued a report blaming the crash on three of the plane's 24 sensors being rendered inoperative due to moisture and feeding bad information to the on-board computer about the plane's altitude and speed. The $1.4 billion aircraft’s computer mistakenly thought the plane was pointed down, generating a command for the nose to suddenly jerk up and causing its left wing to scrape the runway. The two pilots couldn't regain control of the bomber and ejected safely.