Originally Posted by
tdracer
That's fine on paper, but what would you do if, seconds after you selected reverse, a vehicle or another aircraft appeared on the runway? Just go ahead and run into it?
Probably yes, trying to steer clear off it. The A350 in Japan protected the occupants after all. The distance required to liftoff is significant and you'd end up crashing into the obstacle with a higher speed, or worse partially airborne.
My plane stops completely withing 1500' with max effort, but surely won't get climbing with a reverser out and ground spoilers deployed to begin with.