Air brakes and flaps?
Anyone have the real reason why they can't be used together? Did ask a distinguished aerodyanmist this week and after scratching his head suggested it might have something to do with turbulence breaking up the laminar flow with landing flap but my question related to intermediate descent with LE flap and possibly first stage TE.
my thoughts were that it was a certification thingy with the manufacturer not considering the case of speed restriction with requested or needed increased ROD.