4E-8 Developed for Training Purposes Leerjet 35/36
February 1998
CAE SimuFlite
Spoiler/Spoileron
The spoilers, on the upper side of each wing forward of the
flaps, are raised either symmetrically as spoilers (Spoiler
mode) or asymmetrically as augmentation to the up aileron for
improved lateral control when the flaps are extended beyond
25× (Spoileron mode).
Normal spoiler extension and retraction is accomplished by set-
ting the spoiler switch to EXT or RET.
The spoilers are hydraulically actuated and electrically con-
trolled by the spoiler switch on the center pedestal to the right
of the throttles. Spoilers have a maximum extension of 47× (-
7×, +0×) and have a maximum travel differential of 6×. A red
(FC-200) or amber (FC-530) SPOILER annunciator on the
glareshiel indicates spoiler extension.
In the event of a malfunction in the augmentation mode and/or
a mismatch of 6× between the aileron and spoileron, a monitor
circuit automatically disengages the augmentation system, illu-
minates the amber AUG AIL annunciator on the glareshield,
and causes the spoilers to slam down. When the AUG AIL
annunciator is on, the spoilers are inoperative in flight. On the
ground, a squat switch on the landing gear overrides the moni-
tor circuit and allows the spoilers to be operated. A reset switch
is provided to reset the computer in flight and for testing the
system on the ground.
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