Activation of Flaps

[commandkam]

Hello fellow pilots! I have a quick question to ask when your flying a 777-300ER when do you activate the flaps when your approaching the runway for landing? For example when do I start activating each flap setting per nautical mile

[Chatta290]

Take off and landing. This applies for all planes

[commandkam]

When your approaching the runaway

[Flightfan84]

That varies upon your weight & airspeed, among other variables. Use Google to look up a speed chart, you’ll likely find what you’re looking for.

[Chatta290]

I do it before I start taxiing or during it. Either way it doesn’t really matter as long as it’s done before entering the runway

[commandkam]

Upon landing is what I meant

[Chatta290]

On final, as that’s when you will slow down so you use the flaps then.

[Flightfan84]

777-300ER flaps configuration

Vref30 speeds per weight (lbs) 775.000___181 kn 750.000___178 kn 700.000___172 kn 650.000___166 kn 600.000___157 kn 550.000___151 kn 500.000___145 kn 450.000___135 kn 400.000___128 kn 350.000___121 kn And from the Vref30 you can get the other speeds: Vref0___Vref30 + 80 kn Vref1___Vref30 + 60 kn Vref5___Vref30 + 40 kn Vref15__Vref30 + 20 kn Vref20__Vref30 + 20 kn Vref25__Vref30 + 10 kn Notice that on approach only the Vref30 speed has a standard additive of 5 kn.

A quick search is all it takes! :-)

[commandkam]

Omg thank you so much!

[Chatta290]

Any speed below 200knots though you should be using flaps

[Flightfan84]

Happy to help out with IF any time.