L-1011 Flight Controls: Surfaces (27-4-8)

The L-1011 has a Flap with a Vain.

There are four panels on each wing of the L-1011 that make up the trailing edge flap system. These flaps are powered by hydraulic motors through torque tubes and ball actuators. 

The secondary Flight Controls are composed of the four double-slotted fowler-type flaps and the seven slats on each wing. 

Above is the Flying Stabilizer used on the L-1011 which is mechanically slaved to the elevator.