Using crap fuzzy very low quality heavily distorted badly compressed clips from youtube is not evidence of real boeings.
Why don't the plane idiots source the originals and go buy themselves some copies and make a short video showing something different than blurry black blobs with wings and engines misplaced that all support cgi planes?
Because they know that all plane photographs and videos are easily proven fakes.
You have to admit if that happened and it showed real boeings, then honest thinking folks would have to rethink their conclusions that jackass fakery was used on 911.
A real boeing banking left does not make the right engine appear closer to the fuselage, nor can the left wing be attached to air with the flap open on the front, instead of rear where it must be, but isn't, because it's a disasterous fake failure.



The hinged control surfaces are used to steer and control the airplane.
The flaps and ailerons are connected to the backside of the wings. The flaps slide back and down to increase the surface of the wing area. They also tilt down to increase the curve of the wing.
The slats move out from the front of the wings to make the wing space larger. This helps to increase the lifting force of the wing at slower speeds like takeoff and landing. The ailerons are hinged on the wings and move downward to push the air down and make the wing tilt up. This moves the plane to the side and helps it turn during flight. After landing, the spoilers are used like air brakes to reduce any remaining lift and slow down the airplane.