Piper CHEROKEE 180 - Control Systems; Fuel System Configuration

CHEROKEE
180
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 (24 gal.
usable)
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. The
button
on
the
selector
must
be depressed
and
held
while
the handle is moved
to
the
OFF position. The button
releases
automatically
when
the
handle
is
moved
back
into
the
ON
position.
An
auxiliary electric fuel pump
is
provided
in
case of
failure of
the
engine driven pump.
The
electric
pump
should
be
on for all
take-offs
and landings, and
when
switching
tanks. The pump
switch is
located
in
the switch panel
above the
throttle quadrant.
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513 7
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