Piper Cherokee Six 300 Information Manual page 12

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.
AI RFR AME
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
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