Originally Posted by
stilton
Point missed
If you encounter a significant windshear
at your increased VR you may well not
be able to stop
So you are still on the ground, past this
’artificial VR’ with a big loss of airspeed
potentially enough to prevent you from
lifting off but your groundspeed is too high
to stop
Thats the problem, and why I would never
use this procedure
If it’s too bad, delay departure, otherwise use
normal speeds and fly the windshear escape maneuver if necessary
stilton I do not get Your point. Past V1 You must continue the takeoff anyway regardless of what Your Vr is, so what is Your concern ? Again this procedure is not a magic wand it just gives You the benefits of increased energy. If past V1 You do encounter a severe airspeed stagnation You must keep going till You have runway left in front of You and eventually rotate.