Airplane Factory SLING 4
Pilot Operating Handbook
Page | 7-23
DC-POH-001-X-C-3
Revision : 1.3
7.13
Flap and elevator trim systems
The aircraft is equipped with electric flaps and an electric elevator trim
system. The flap motor is located in the cabin centre console. The two
wing flaps are interconnected via a torque tube, which is driven at a single
point by the flap motor. Bar a failure in the linkage system, this prevents
the flaps from being deployed (driven) to asymmetrical positions. Pilot
control of the flap system is via a four position rotary knob (electronic
controller) located on the instrument panel. Refer to paragraphs 7.3 and
the instrument panel layout in paragraph 7.12.
The flap controller is powered from the main bus. The flap controller in
turn powers the flap motor, via a circuit breaker located on the instrument
panel (refer to paragraph 7.19.2).
The trim motor is located in the port elevator and drives a trim tab (via a
pushrod system) located on the elevator trailing edge. Pilot control is via
buttons located on the control stick(s). Refer to paragraph 7.3 for button
allocation.
The elevator trim system is powered (via a circuit breaker located on the
instrument panel) directly from the charge system output (refer to
paragraph 7.19.1) and / or from the battery / main bus (provided the
charge relay is energized / not failed).
WARNING
The flap system becomes non-operational with loss of power to the main
bus. Elevator trim will still be available with a loss of power to the main
bus, provided that the charge system is still operational.
Summary of Contents for SLING 4
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