Results are presented of the effects of slats, flaps, wing-fuselage ramp fairing, and propeller rotation on the flow separation, buffet, and descent characteristics of a tilt-wing deflected-slipstream VTOL model. The results indicated that wing stall and resulting buffet in descending flight could be delayed, approximately 15 knots by a slat, BLC nose flap, or increased trailing-edge flap effectiveness.
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