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Cessna 208B - Flight Controls; Trim Systems

Cessna 208B
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CESSNA SECTION
7
MODEL 2088 (675 SHP) AIRPLANE AND SYSTEMS DESCRIPTION
CARGO POD
The airplane may be equipped with a cargo pod which provides
additional cargo space. The pod attaches to the bottom of the fuselage
with screws and can be removed, if desired, for increased performance
and useful load. The pod is fabricated with a Nomex inner housing, a
layer of Kevlar, and an outer layer of fiberglass. Complete instructions
for removal and installation of the cargo pod are contained in the
Maintenance Manual.
The volume of the cargo pod is 111.5 cubic feet and has a load-carrying
I
capacity of 1090 pounds. The pod has aluminum bulkheads that divide
it into four separate compartments. Each compartment has a door on
the left side of the pod that is hinged at the bottom. Each door has two
handles that latch the doors in the closed position when rotated 90
degrees to the horizontal position.
FLIGHT CONTROLS
The airplane's flight control system (see Figure 7-1) consists of
conventional aileron, elevator and rudder control surfaces and a pair of
spoilers mounted above the outboard ends of the flaps. The control
surfaces are manually operated through mechanical linkage using a
control wheel for the ailerons, spoilers and elevator and
rudderlbrake
pedals for the rudder. The wing spoilers improve lateral control of the
airplane at low speeds by disrupting lift over the appropriate flap. The
spoilers are interconnected with the aileron system through a push-rod
mounted to an arm on the aileron bell crank. Spoiler travel is
proportional to aileron travel for aileron deflections in excess of
5"
up.
The spoilers are retracted throughout the remainder of aileron travel.
Aileron servo tabs provide reduced maneuvering control wheel forces.
TRIM SYSTEMS
Manually-operated aileron, elevator, and rudder trim systems are
provided (see Figure
7-1). Aileron trimming is achieved by a trimmable
servo tab attached to the right aileron and connected mechanically to a
knob located on the control pedestal. Rotating the trim knob to the right
(clockwise) will trim right wing down; conversely, rotating it to the left
(counterclockwise) will trim left wing down.
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Revision
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U.S. 7-9

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