FlightSafety LEARJET 45 - PRIMARY FLIGHT CONTROLS

axis. The pitch trim system incorporates au-
tomatic configuration trim for changes in
spoiler position. Ailerons are augmented with
a full-time spoileron system.
All flight control trim motors and electrical
servos can be disabled by depressing and hold-
ing either control wheel master switch (MSW)
in the event of a malfunction causing control
inputs.
The flaps, spoilers, and spoilerons are elec-
trically controlled and hydraulically actu-
ated. All flight control surfaces are shown in
Figure 15-1.
A Mach trim system provides automatic pitch
trim to compensate for a slight reduction in
stick force at high Mach numbers.
A controls lock is provided to prevent wind
gust damage to the primary flight control sur-
faces. When installed as depicted in Figure 15-
1, the lock holds the rudder centered, full up
left aileron, and full down elevator displace-
ment.
PRIMARY FLIGHT
CONTROLS
ELEVATORS
General
The elevators (Figure 15-2) are hinged to the
aft edge of the horizontal stabilizer and are
connected to the control columns through a
15-2
FOR TRAINING PURPOSES ONLY
LEARJET 45 PILOT TRAINING MANUAL
FlightSafety
international
HORIZONTAL STABILIZER
ELEVATORS
RUDDER
RUDDER TRIM TAB
SINGLE PIECE FLAP
SPOILER/SPOILERON
SINGLE PIECE FLAP
SPOILER/SPOILERON
AILERON TRIM TAB
AILERON BALANCE TAB
AILERON
FLIGHT CONTROLS
GUST LOCK
Figure 15-1. Flight Control Surfaces