"Marty" wrote in message news:3d21

At OSH, before they extended R18-36, I watched a T & G by a (NWA?) 747.
The engines were spooling up well before the mains touched down and I
don't believe there was any PAX onboard. Was that a short field
proccedure? Or just for the show? They may have well been able to keep it
from settling down because when they did rotate, it pitched up and climbed
like a.....you know.

An empty 747 *will* climb like one of those......

On a go around in a 747 or other long aircraft, one element of concern is
pitch angle. In the 747, if you exceed 12 degrees (iirc) you'll tail strike
rather than touch on the mains. So you set a limited rotation angle until
the power and acceleration give you a pos rate of climb. If a touch occurs
before that, it will be on the wheels. Then increase pitch accordingly in
the climbout.