Sorry about my ground roll question.....
I didn't mean to get people upset. It seems the cause for the plane not flying has been well argued over and over....I thought an examination of braking performance during the extraordinary 15 second plus ground roll off concrete would at least help me understand more.
Someone said I would not be able to stop an auto traveling 140kts within 1100m, on dry grass....and I'd have to say that would be easily done. Dry grass is not glare ice.