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.

Recently happened to a niece of mine, but not a knowledgeable flyer, so no
more details to be had.

Any confessions out there? ;-)
--
Jim in NC

I have had one wing get picked up by strong cw, the wing lifted off the
ground then set back down. That would have to be a strong cw for that to
happen to an airliner.