Auxiliary Flight Controls

CHAPTER EIGHTEEN

T-34C AIRCRAFT SYSTEMS FAMILIARIZATION

CHANGE 2

WORKBOOK

1804. AUXILIARY FLIGHT CONTROLS

Wing flaps are high-lift devices used to increase lift during low speed flight. The T-34C utilizes

slot type flaps which are attached to the trailing edge of the wing near the root. The flaps are

operable from either cockpit and a flap position indicator labeled in percent is located on the left

side on each instrument panel. The flaps will extend or retract electrically in approximately 10

seconds. A 28-volt DC flap motor is controlled by a three-position airfoil-shaped lever located

on the left sidewall in both cockpits. Limit switches in the left wing cut power to the motor

when the flaps are fully extended or fully retracted. Raising the lever to UP retracts the flaps,

depressing the lever to DN extends them, and placing the lever in the center OFF position will

stop flap travel at an intermediate position. (OFF is not normally used.) No emergency system

is provided for flap operation in the event of a complete electrical failure.

The flap indicator located on the left side of the instrument panel will indicate the flaps' position

as a percent of full flaps (30). Full up = 0% and full down = 100%. Flap indication is taken

from the left flap.

18-4

FLIGHT CONTROL SYSTEMS