CHEROKEE
SIX
.
3OO
DESCRIPTION
AIRPLANE AND
SYSTEMS
THE
AIRPLANE
The PA-32-300
is a
six-place
(seventh
seat optional),
single-engine, low-wing.
all
metal
monoplane. Removable
seats
give
the
airplane
a
wide
range
of cargo
and passenger
loading
options.
Its
large
capacity,
combined
with an
economical
and
powerful
fuel
injected
300horsepowerengine.
rnakes
this
Cherokee a
versatile
airplane
for
personal
or
commercial
use.
AIRFRAME
Except for the
tubular steel engine
mount, steel
landing gear
struts,
other
miscellaneous steel
parts,
and
the
dent
resistant fiberglass extremities
-
cowling
and
tips
of wings
and
tail
surfaces
-
the
basic airframe
is of aluminum alloy.
The fuselage
is
a conventional
semi-monocoque
structure with
a
cabin door
on the
right
front
and a cargo and
passenger
door
on the
left
rear.
The wings are attached
to each
side
of
the fuselage
by the insertion'of the butt ends
of
the
mainspars
into
a spar box carry-through which is
an integral
part
of
the
fuselage
structure. This
provides,
in effect,
a
continuous
main
spar with splices
at each side
of
the
fuselage.
There
arc
also
fore and aft
attachments at
the
rear
spar
and
at an auxiliary
front
spar.
.
The
wing
airfoil
section
is
a
laminar flow type,
NACA65r4l5 with
a
maximum
thickness
at
about
40Vo
aft of
the
leading edge.
The empennage consists
of
the
fin,
the
stabilator, and the stabilator
trim tab.
ENGINE
AND
PROPELLER
The Lycoming lO-5{0'KlA5
(Serial
nos.
7440001
through
7640065 and 7640067
through
'7ffi71
or lO-540-KlG5
(Serial
nos.
764+Cf,66,7640072and
up)
engine installed
in
the
PA-32'300
is
rated
at 300 horsepower
at 2700
rpm.
This engine has
a
compression
ratio
of
8.7
to
I and
required
100/
130
minimum
octane fuel.
The
engine is
equipped with a
gearcd
starter,a
60amperealternator,
dual magnetos, vacuum
pump
drive,
a
vane-type
fuel
pump,
and
fuel
injection.
The exhaust system consists ofdual exhaust stacks
routed
to a single heavy
gauge
stainless
steel
muffler
on
serial numbers 7440001 through
7540188.
On
later
models individual
exhaust
pipes
are
routed
in
pairs
to
three
heavy
gauge
stainless steel mufflers.
Exhaust
gases
are
routed overboard
at
the underside of the
engine
cowling.
The muffler
(or
mufflers)
are
surrounded
by
a shroud which
provides
heat
for
the
cabin and for windshield
defrosting.
Cowling on
the
Cherokee
Six
is
designed
to cool
the engine
in all
normal flight conditions.
including
protracted
climb,
without
the use of
cowl
flaps or
cooling flanges.
AIRPLANE
AND
SYSTEMS
REVfSED:
FEBRUARY
2.
1976
2-l
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