CHEROKEE 180
SECTION
11
SECTION 11
DESIGN
INFORMATION
ENGINE
AND
PROPELLER
The
Cherokee 180
is
powered by a Lycoming
O-360-A4A
four
cylinder, direct
drive,
horizontally
opposed engine rated
at
180 HP at
2700
RPM. It is furnished with a starter, 60 ampere 12 volt
alternator,
shielded ignition,
vacuum
pump
drive,
fuel pump, and a
dry,
automotive
type
carburetor air filter.
The exhaust
system
is
of
the
cross-over
type to reduce
back
pressure
and improve performance,
It is made
entirely
from stainless
steel and
is equipped with
dual
mufflers.
A
heater shroud
around the
mufflers is provided
to
supply
heat for the cabin and
windshield
defrosting.
The Sensenich
76EM8S5-0-60
fixed-pitch propeller is
made from
a
one-piece
alloy
forging.
STRUCTURES
All
structures
are of
aluminum
alloy
construction and are designed
to
ultimate load factors well in excess of normal requirements. All
exterior
surfaces are primed with
etching
primer and painted
with
acrylic
lacquer.
The
wings are attached
to
each
side of
the
fuselage by inserting
the
butt ends
of the respective main spars into
a
spar
box
carry-through
which
is an
integral part of the fuselage structure, providing in
effect
a
continuous main
spar with
splices
at each side of the fuselage.
There are
also fore
and aft
attachments at the rear spar and at an
auxiliary
front
spar.
761 513
5
720615
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