-
SECTION
7
CESSNA
AIRPLANE AND SYSTEMS DESCRIPTION MODEL 208B
(675
SHP)
AIRFRAME
(Continued)
1
Round-nosed ailerons and single-slot type flaps are made from
conventional formed sheet metal ribs and smooth aluminum skin
construction. A slot lip spoiler, mounted above the outboard end of
each flap, is of conventional construction. The lefl aileron incorporates
a servo tab while the right aileron incorporates a trimmable servo tab,
both mounted on the outboard end of the aileron trailing edge.
The empennage (tail assembly) consists of a conventional vertical
stabilizer, rudder, horizontal stabilizer, and elevator. The vertical
stabilizer consists of a forward and aft spar, sheet metal ribs and
reinforcements, four skin panels, formed leading edge skins, and a
dorsal fin. The rudder is constructed of a forward and aft spar, formed
sheet metal ribs and reinforcements, and a wrap-around skin panel.
The top of the rudder incorporates a leading edge extension which
contains a balance weight. The horizontal stabilizer is constructed of a
forward and aft spar, ribs and stiffeners, four upper and four lower skin
panels. and two
ief! and two r gnr wrap-around sk n panels which also
form the leading edges. The horizontal
stabil~zer also conta.ns dual jack
screw type
acfuatcirs for the elevator trim tabs. Construction of the
elevator consists of a forward and aft spar, sheet metal ribs, upper and
lower skin panels, and wrap-around skin panels for the leading and
trailing edges. An elevator trim tab is attached to the trailing edge of
each elevator by full length piano-type hinges. Dual
pushrods from
each actuator located in the horizontal stabilizer transmit actuator
movement to dual horns on each elevator trim tab to provide tab
movement. Both elevator tip leading edge extensions
~rovide
aerodynamic balance and :ncorporate bdanceweights. A row
d
vortex
generators on tne top of tne norizontal stabilizer iust forward of the
elevator enhances
nose down elevator and trim authority.
To assure extended service life of the airplane, the entire airframe is
corrosion proofed. Internally, all assemblies and sub-assemblies are
coated with a chemical film conversion coating and are then epoxy
primed. Steel parts in contact with aluminum structure are given a
chromate dip before assembly. Externally, the complete airframe is
painted with an overall coat of polyurethane paint which enhances
resistance to corrosive elements in the atmosphere. Also, all control
cables for the flight control system are of stainless steel construction.
U.S.
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Revision 23
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