to HIGHlow: To me it wasn't exactly clear from the FCTM page I posted. PF: press TOGA and verify GA thrust
Thank you for clarifying. I assume then that WSH escape as trained includes use of TO/GA FD's limited to 20° NU and full available thrust. Thus, in stable airmass, yielding climb rate consistent with the recorded data 3500-4500 fpm. Quite possibly modest speed increase too.
[speculation]Then full power level-off in IMC or worse: preceived level bust (imagine: after handover to APCH they're told of having busted the altitude), nice stomagravic illusion of climbing due acceleration, speed-tape confusion with some flaps still out, GPWS yelling do not sink! And the strobe lights reflecting in IMC and snow too.. [/speculation] ... and all this at nice 04:00 morning of your body clock.