Hi there,
As we extended the Flap, more wing area were make, and more angle of attack
too [Don't forget that now the chord line have change from LE wing -> TE wing
to LE wing -> TE flaps] Because of that the boundary layer might not have enough energy to flow along the wing at higher AoA and hence stall.
Best Regards
Last edited by Mr.Vortex; 21st November 2010 at 15:09.
Reason: change from to to ->