In article , Morgans wrote:

Anybody have a clue what would be happening, if an Airliner took off,
settled back to the runway, and took off again? Mis-calculated rotation
speed? Seems hard to understand, to me.

I think you are asking how this could happen. One way I can think of is if the
wind died partway down the runway. Another would be some sort of boo boo
as you speculated. Rotated too soon and decided to lower the nose to pick
up speed, for instance.

I've taken off twice in one run down the field before, but I think it was always
when I was trying to get off of a wet field or some other high-friction condition.
Not in an airliner, of course....

Mike Beede