"So while landing, you have to be below the amber = and F speed to retract your flaps?"
While on approach you will be extending your flaps. You only have to be below amber =
"So when you go to 2, F speed will go down and the amber =. When you will be below the amber =, you can retract your flaps to 1?"
When you go to 2, F speed is displayed. It doesnt change, but S speed disappears and F speed appears on the speed tape.
Trying to put it anotherway...
To RETRACT flaps you have to be ABOVE F/S speed.
To EXTEND flaps you have to be BELOW amber =.
1. Yes.
2. Neither. It is a comfortable speed to fly with flaps 2/3. And the minimum speed if you want to retract to flaps1.
3. Neither. It is a comfortable speed to fly with flaps 1. And the minimum speed if you want to retract to flaps0.
"So when we extend our slats to 1, we can see the amber =
That is the maximum speed we can fly with our slats. Then there is S speed which is......."
No. with flaps 1, your Vmax is Vfe. The amber = will show the Vfe for flaps2.