4E-4 Developed for Training Purposes Leerjet 35/36
February 1998
CAE SimuFlite
Roll Trim
The aileron roll trim is actuated by a combination trim and trim
arming switch on each control wheel. Moving the trim switch
left or right while depressing the arm button electrically oper-
ates the trim tab attached to the trailing edge of the left aileron.
Atrim indicator on the center pedestal, labeled AIL TRIM,
shows position of the aileron trim tab in units left wing down
(LWD) or right wing down (RWD). The pilot’s trim switch has
authority over the copilot’s trim switch during any trim action.
Elevators
The elevators on the trailing edge of the horizontal stabilizer
provide pitch control of the aircraft mechanically through fore
and aft movement of the control column or automatically by the
autopilot pitch servo.
A closed loop cable assembly from the control column to the
tail section and push-pull tubes drive the elevators through a
range of 16×(+0×,-30’) up and 15×(±30’) down.
Pitch Trim
Pitch trim is accomplished by repositioning the horizontal stabi-
lizer electrically with a dual-motor stabilizer actuator. The pri-
mary motor is controlled by the primary pitch trim and the Mach
trim system, while the secondary motor is controlled by the sec-
ondary pitch trim switch or the autopilot. The primary and sec-
ondary pitch trim systems are selected with the pitch trim
selector switch on the center pedestal. The switch positions are
PRI/OFF/SEC.
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