Cessna 152 - Page 110

SECTION7
AIRPLANE
&
SYSTEMS
DESCRIPTIONS
CESSNA
MODEL
152
horizontal
stabilizer
also
contains
the
elevator
trim
tab
actuator.
Con-
struction
of
the
elevator
consists
of
a
main
spar
and
bellcrank,
left
and
right
wrap-around
skin
panels,
and
a
formed
trailing
edge
skin
on
the
left
half
of
the
elevator;
the
entire
trailing
edge
·of
the
right
half
is
hinged
and
forms
the
elevator
trim
tab.
The
leading
edge
of
both
left
and
right
elevator
tips
incorporate
extensions
which
contain
balance
weights.
FLIGHT CONTROLS
The
airplane's
flight
control
system
(see
figure
7-1)
consists
of
conventi.onal
aileron,
rudder,
and
elevator
control
surfaces.
The
control
surfaces
are
manually
operated
through
mechanical
linkage
using
a
control
wheel
for
the
ailerons
and
elevator,
and
rudder/brake
pedals
for
the
rudder.
Extensions
are
available
for
the
rudder/
brake
pedals.
They
consist
of
a
rudder
pedal
face,
two
spacers
and
two
spring
clips.
To
install
an
exten-
sion,
place
the
clip
on
the
bottom
of
the
extension
under
the
bottom
of
the
rudder
pedal
and
snap
the
top
clip
over
the
top
of
the
rudder
pedal.
Check
that
the
extension
is
firmly
in
place.
To
remove
the
extensions,
reverse
the
above
procedures.
TRIM
SYSTEM
A
manually-operated
elevator
trim
tab
is
provided.
Elevator
trimming
is
accomplished
through
the
elevator
trim
tab
by
utilizing
the
vertically
mounted
trim
control
wheel.
Forward
rotation
of
the
trim
wheel
will
trim
nose-down;
conversely,
aft
rotation
will
trim
nose-up.
INSTRUMENT
PANEL
The
instrument
panel
(see
figure
7-2)
is
designed
to
place
the
primary
flight
instruments
directly
in
front
of
the
pilot.
The
gyro-operated
flight
instruments
are
arranged
one
above
the
other,
slightly
to
the
left
of
the
control
column.
To
the
left
of
these
instruments
are
the
airspeed
indicator,
turn
coordinator,
and
suction
gage.
The
clock,
altimeter,
rate-of-climb
indicator,
and
navigation
instruments
are
above
and/
or
to
the
right
of
the
control
column.
Avionics
equipment
is
stacked
approximately
on
the
centerline
of
the
panel,
with
space
for
additional
equipment
on
the
lower
right
side
of
the
instrument
panel.
The
right
side
of
the
panel
also
contains
the
tachometer,
ammeter,
low-voltage
light,
and
additional
instruments
such
as
a
flight
hour
recorder.
The
left
switch
and
control
panel,
under
the
primary
instrument
panel,
contains
the
fuel
quantity
indicators,
cigar
7-8
1
July
1978