747 flap retraction
Would anyone know why does the 747-400 buffets when flaps are being retracted between flaps 5 and 1, this i noticed is very evident on a heavy weight take off. I reckon it has something to do with the laminar flow over the wing as the leading edges are being retracted. I don't know if the other series have the same problem. Well its not a problem but i'm just curious!