trim roll l (left), r (right); the yaw trim l, r; and trim pitch
up, down switches are located on panel L2. The pilot's switches
are located on panel C3. The commander's trim switches on panel
L2 are enabled when the trim panel on/off switch on the left side
of panel F3 is positioned to on . The pilot's trim switches on panel
C3 are enabled when the trim panel on/off switch on the right side
of panel F3 is positioned to on. The corresponding trim RHC/panel
enable/inhibit switch must be in enable in order for trimming to
Each of the
three trim switches on panels L2 and C3 are spring loaded to the
center off position.
management processes the two sets of switches. If two switches generate
opposing commands, the resultant trim command in that axis is zero.