A multi- segment flap fence (106) is incorporated into the wing such that a lower fence structure (202) is attached to the underside of the fixed wing (102), an upper fence structure '(212) is attached to the main flap (108) (e.g., at the outboard end). The two flap segments (202, 212) are configured to slideably articulate with respect to each other when the flap (108) is extended to form a composite flap fence having an area that is substantially equal to the sum of the surface areas of the upper (212) and lower (202) flap fence structures. In one embodiment, the area of the upper fence (212) is less than that of the lower fence (202).