Flap Track Fairings are huge pods beneath aeroplane wings (FTFs). FTFs, often called trailing edge fairings, protect wing flap actuation mechanisms. The flap track,
which extends and retracts, determines the fairing's horizontal dimension. The rear box and tail cone protrude behind the wing when the FTF structure is retracted
A flap lifts and reshapes the wing. Flaps minimise stall speeds by extending the wing. Flaps are extended to enhance wing curvature and lift coefficient at lower speeds
During takeoff, aircraft use 5-15 degrees of flaps to increase lift. Landing requires 25-40 degrees of flap to optimise lift and drag. The plane may drop steeper and land slower.
The pilot activates the flanges to lower the flaps along the rail. The trailing-edge wing curvature enhances lift and drag coefficients
Anti-shock bodies, affixed to the wing's trailing edge, appear identical. On the Convair 990, the anti-shock bodies extend beneath and over the trailing edge, resembling a bulge.