SERVICE MANUAL & ICA
8750 AMPHIBIAN/SEAPLANE FLOATS ON CESSNA 208/208B
P/N 1005723 Doc. No. W8750-24-01
Page 104 of 104
Revision C
12.1 WING FENCES
GENERAL DESCRIPTION
Wing fences are flat plates fixed to control
surfaces on top of the wing. The Cessna 208
comes standard with one fence attached to the
inboard edge of each aileron. As part of the
float installation on the Cessna 208B, four
fences are installed: one of the inboard edge of
each aileron and one on the inboard edge of
each spoiler. The fences are installed to aid in
lateral stability and stall characteristics. All of
the appropriate fences must be in place prior
to flight. For location and installation of Wing
fences on the Cessna 208B, see Wipaire
drawing number 1006698 Rev. A or later
approved revision.
12.2 VORTEX GENERATORS
GENERAL DESCRIPTION
The Vortex Generators are typically a
triangular shape design made of various
materials that are used to energize airflow over
control surfaces or wings. There are typically
ten (10) equally spaced Vortex Generators on
each upper wing just aft of the leading edge on
the Cessna 208B only. Cessna 208B aircraft
previously equipped with a TKS fairing have
roughly 34 Vortex Generators installed. With
the addition of the Vortex Generators the
aircraft will have improved controllability and
safety at low speeds. No more than two non-
adjacent vortex generators per wing can be
missing at any one time. If a Vortex Generator
is missing, replace as soon as possible. Refer
to Cessna 208 models Configuration Deviation
List.
12.3 FLOAT SUCTION BREAKERS
GENERAL DESCRIPTION
The suction breakers are angled aluminum
channel riveted to the bottom surface of the float
afterbody. There are four suction breakers
installed on each float afterbody, two inboard
and two outboard. The suction breakers are
installed to decrease a tendency for the
afterbody to stay attached to the water on
takeoff, particularly on glassy water conditions.
Any number of suction breakers can be missing,
but must be reinstalled as soon as possible. For
installation and location of Suctions breakers
see Wipaire drawing number 1006575 Rev. A or
later approved revision.
CAUTION!
Missing suction breakers will result in longer
water takeoff runs, particularly in glassy
water.
WARNING!
If suction breakers are found to be missing
ensure that holes are adequately sealed prior
to any further water operation to prevent
float compartment filling with water.