Abstract: A flap actuation system employed in an aircraft wing with a flap having an internal structure employs a drive link pivotally attached at a top end with a drive axle to a forward lug on the internal structure and pivotally attached at a bottom end with a first pivot axle to a flap support element. An actuator is operably coupled to the drive link intermediate the top end and bottom end. A trailing link is pivotally attached at a leading end with a second pivot axle to the flap support element and pivotally attached at a trailing end with a reaction axle to an aft fitting on the internal structure. A catcher link is pivotally attached at a bottom end to the flap support element and at a top end to an intermediate fitting engaged to the internal structure.

Abstract: A wing stall compensation mechanism employs an upper door having forward upper hinge end pivotally coupled to an upper wing structure for rotation about an upper axis and a free aft upper end. A lower door has a free aft lower end and a forward lower hinge end pivotally coupled to a lower wing structure for rotation about a lower axis and a 2-bar coupler linkage is disposed between and pivotally coupled to the upper door and lower door. Downward rotation of the upper door in response to wing surface airflow separation causes contraction of the coupler linkage inducing upward rotation of the lower door from a closed position that inhibits airflow through a flap slot to an open position that enables airflow through the flap slot, to thereby restore wing surface airflow effectiveness.

Abstract: An articulating flap support housing includes a flap connected to a wing with the flap having a range of deployed positions. An aft fairing is connected to the flap and configured to rotate with the flap through the range of deployed positions. A forward fairing is rotatably connected to the aft fairing. The forward fairing acts as a counterbalance to the aft fairing and flap.

Abstract: A wing stall compensation mechanism employs an upper door having forward upper hinge end pivotally coupled to an upper wing structure for rotation about an upper axis and a free aft upper end. A lower door has a free aft lower end and a forward lower hinge end pivotally coupled to a lower wing structure for rotation about a lower axis and a 2-bar coupler linkage is disposed between and pivotally coupled to the upper door and lower door. Downward rotation of the upper door in response to wing surface airflow separation causes contraction of the coupler linkage inducing upward rotation of the lower door from a closed position that inhibits airflow through a flap slot to an open position that enables airflow through the flap slot, to thereby restore wing surface airflow effectiveness.

Abstract: An articulating flap support housing includes a flap connected to a wing with the flap having a range of deployed positions. An aft fairing is connected to the flap and configured to rotate with the flap through the range of deployed positions. A forward fairing is rotatably connected to the aft fairing. The forward fairing acts as a counterbalance to the aft fairing and flap.

Abstract: A flap actuation system employed in an aircraft wing with a flap having an internal structure employs a drive link pivotally attached at a top end with a drive axle to a forward lug on the internal structure and pivotally attached at a bottom end with a first pivot axle to a flap support element. An actuator is operably coupled to the drive link intermediate the top end and bottom end. A trailing link is pivotally attached at a leading end with a second pivot axle to the flap support element and pivotally attached at a trailing end with a reaction axle to an aft fitting on the internal structure. A catcher link is pivotally attached at a bottom end to the flap support element and at a top end to an intermediate fitting engaged to the internal structure.