Cessna 172P - Page 132

SECTION 7
AIN,PLANE
&
SYSÎEMS
DESCN,IPTIONS
CESSNA
MODEL
172P
The
horizontal
stabilizer
is
stiffeners,
center,
left¡
and
Hä"i:;å:i
loadtng
edge skins.
The
ho
the elevator
FLIGHT
CONTROLS
The airplane's flight
control
Bystem
(see
figure
Z-1) consists
of
coDventional
aileron, rudder,
and elevator
oontrol
surfaces.
The control
surfaceg
are
manually operated
through
meohanical
linkage
using a
control
wheel
for the ailerons
and
elevator,
and rudder/bra,ke pedals
for
the rudder.
Ðxtensions
are available
for the rudder/
brake
pedals.
They
consist
of a
rudder
pedal
tace, two
spaoers and two
spring
clips. To
install
an exten-
sion,
place
tho
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 oxtension is firrnly in
place.
To remove
the
extensions,
reverse
the
above
procedures.
TRIM
SYSTEM
A
manually-operated
elevator trim
system is
provided;
a rudder trim
system
may
also be installed
(see
figure
7-1). Elevator
trimming
is
accomplished
through
the elevator trim
tab
by
utitizing
the
vertically
mounted trim
control
whoel. Forward
rotetion of the trim
wheel wiII trim
nose-down;
conversely,
aft
rotation
will trím
no6e-up.
Ruddertrimming is
accomplished
through
a bungee connected
to the
rudder control
system
and
a trim
lever, mounted
on
the
control
pedestal.
Rudder
trimming is
accomplished
by
lifting
the
trim
lever
up to
olea,r a detent,
then moving it
either left
or right to
the desired
trim
position.
Moving the trim
lever
to tho
right
will
trim
the airplane nose-right;
conversely,
moving the
lever to the
left
will trim
the
airplane
nose-left.
INSTRUMENT
PANEL
The instrument
panel
(see
figure 7-2) is
designed around
the basic
"T"
configuration.
The
gyros
are located immediately
in front
of the
pilot,
and
arranged
vertically
over
the control
column. The
airspeed
indicator
and
7-8
30
May
1980