747-400 Flap schedule

[Heisenb3rg]

Hi,

Just wondering if anyone could explain in very simple terms the flap schedule for the 747-400. Alternatively, tell me if i have it correct or incorrect! It feels slightly different to the bus way of doing / displaying things!

As i understand it, for flap extension:

select the stage of flap you are approaching as you decelerate. Ie at a few KTS above "5" on the speed tape, decelerating towards it, select flap 5 (from flap 1).

for retraction:

select the stage of flap as you pass the respective number and are accelerating. i.e. when you reach the speed '10' is displayed at, and are accelerating, select flap 10 (from flap 20)

Thanks,

H