Piper CHEROKEE D - Control Systems; Fuel System

CHEROKEE "D"
SECTION II
CONTROL SYSTEMS
Dual controls are provided as standard equipment with a
cable system used between the controls and the surfaces. The
horizontal tail is of the Flying Tail type (stabilator), with a trim
tab mounted on the trailing edge of the stabilator to reduce the
control system forces. This tab is actuated by a control wheel
on the floor between the front seats. The stabilator provides
extra stability and controllability with less size, drag and weight
than conventional tail surfaces. The ailerons are provided with a
differential action which tends to reduce adverse yaw in turning
maneuvers, and which also reduces the amount of coordination
required in normal turns. A rudder trim adjustment is mounted on
the right side of the pedestal below the throttle quadrant and
permits directional trim as needed in flight.
The flaps are manually operated, balanced for light operating
forces and spring-loaded to return to the up position. A past-
center lock incorporated in the actuating linkage holds the flap
when it is in the up position so that it may be used as a step on
the right side. The flap will not support a step load except when
in the full up position, so it must be completely retracted when
used as a step. The flaps have three extended positions·: 10, 25
and
40 degrees.
FUEL SYSTEM
Fuel is stored in two twenty-five gallon tanks which are
secured to the leading edge structure of each wing by screws and
nut plates. This allows easy removal for service or inspection.
The fuel selector control is located on the left side-panel, forward
of the pilot's seat. If a modified selector valve cover has been installed,
the button on the selector cover must be depressed and held while the
handle is moved to the OFF position. The button releases automatically
when the handle is moved into the ON_position.
An
auxiliary electric fuel pump is provided in case of failure
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