B-2 preliminary public crash report summery and video.

[ATFS_Crash]

http://www.alert5.com/2008/06/b-2-accident-report-released.html

[Dmmoore]

Moisture in the pitot static system!
Three separate ADC's all giving bad data due to moisture!
The maintenance program for insuring the cleanliness of the pitot static system just changed!

[bob12312357]

Never flew a B-2 obviously, but if the instruments aren't displaying the airspeed that is usual for that time on the takeoff roll wouldn't they have shut it down? Just curious, our planes are about 1 billion dollars cheaper a piece and the instruments may have shown all as normal. THen theres still the how are we at rotate speed in half the usual distance.

[uy707]

Some more

http://www.flightglobal.com/articles/2008/06/06/224493/videos-b-2-crash-linked-to-moisture-maintenance-oversight.html

[Dmmoore]

Never flew a B-2 obviously, but if the instruments aren't displaying the airspeed that is usual for that time on the takeoff roll wouldn't they have shut it down? Just curious, our planes are about 1 billion dollars cheaper a piece and the instruments may have shown all as normal. THen theres still the how are we at rotate speed in half the usual distance.

Like most everyone around here, I haven't flown, been a passenger in, or anything else around the B2. I have seen them fly!

The flight control computers receive information from the pitot / static system as does the basic air data instruments. As I understand the aircraft's flight control system, The ADC's use pitot / static pressure to sense AOA instead of the usual air vane which is not compatible with STEALTH. The F-117 used a similar system. Small changes is pitot / static pressure delivered from faceted probes to the ADC's are used to compute the AOA.