Originally Posted by
Check Airman
I don't fly the 777, but what prevents you from selecting F20 with gear up? Do you get the gear warning horn in that configuration?
Nothing prevents you selecting it and no you don’t, but F20 has the same manoeuvring speed as F15 (i.e. Vref+20). To slow further (to 160 as in the example I gave previously) you need F25/F30 which would sound the gear warning if selected before the gear is down.