Cessna 152 1978, Pilot Operating Handbook, Page: 99 / 192

CESSNA AIRCRAFT COMPANY FOR TRAINING USE ONLY
MODEL 152 7-3
INTRODUCTION
This section provides description and operation of the airplane and its systems. Some equipment
described herein is optional and may not be installed in the airplane. Refer to Section 9, Supplements,
for details of other optional systems and equipment.
AIRFRAME
The airplane is an all-metal, two-place, high-wing, single-engine airplane equipped with tricycle landing
gear, and is designed for general utility purposes.
The construction of the fuselage is a conventional formed sheet metal bulkhead, stringer, and skin
design referred to as semimonocoque. Major items of structure are the front and rear carry-through
spars to which the wings are attached, a bulkhead and forgings for main landing gear attachment at the
base of the rear door posts, and a bulkhead with attaching plates at the base of the forward door posts
for the lower attachment of the wing struts. Four engine mount stringers are also attached to the
forward door posts and extend forward to the firewall.
The externally braced wings, containing the fuel tanks, are constructed of a front and rear spar with
formed sheet metal ribs, doublers, and stringers. The entire structure is covered with aluminum skin.
The front spars are equipped with wing-to-fuselage and wing-to-strut attach fittings. The aft spars are
equipped with wing-to-fuselage attach fittings, and are partial-span spars. Conventional hinged ailerons
and single-slotted flaps are attached to the trailing edge of the wings. The ailerons are constructed of a
forward spar containing balance weights, formed sheet metal ribs and “V” type corrugated aluminum
skin joined together at the trailing edge. The flaps are constructed basically the same as the ailerons,
with the exception of the balance weights and the addition of a formed sheet metal leading edge
section.
The empennage (tail assembly) consists of a conventional vertical stabilizer, rudder, horizontal stabilizer,
and elevator. The vertical stabilizer consists of a spar, formed sheet metal ribs and reinforcements, a
wrap-around skin panel, formed leading edge skin and a dorsal. The rudder is constructed of a formed
leading edge skin containing hinge halves, a wrap-around skin panel and ribs, and a formed trailing edge
skin with a ground adjustable trim tab at its base. The top of the rudder incorporates a leading edge
extension which contains a balance weight. The horizontal stabilizer is constructed of a forward spar,
main spar, formed sheet metal ribs and stiffeners, a wrap-around skin panel, and formed leading edge
skins. The horizontal stabilizer also contains the elevator trim tab actuator. Construction of the elevator
consists of a main spark 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.