SERVICE MANUAL & ICA
8750 AMPHIBIAN/SEAPLANE FLOATS ON CESSNA 208/208B
Revision B
Page 21 of 104
P/N 1005723 Doc. No. W8750-24-01
1.1 GENERAL FLOAT INFORMATION
The model 8750 amphibious float is an all
aluminum structure. The alloy used throughout
is mostly corrosion resistant 6061-T6, with
2024-T3 and 7075-T651 used in strength critical
fittings and panels. Interior parts are cleaned,
acid-etched and then primed prior to being
riveted for enhanced corrosion resistance.
Exterior surfaces are cleaned, alodine is applied
as a corrosion resistant barrier, and then primed
and custom painted.
Model 8750 floats
contain sixteen (16) water
tight compartments per
hull. Access to the
inside of the floats for cleaning, inspection and
repairs is through the access covers on the float
deck and the access covers inside the wheel
well.
Figures 1-1 and 1-2 show three view drawings
of the Cessna 208 as installed on Wipline model
8750
amphibious floats.
Figures 1-3 and 1-4 show three view drawings
of the Cessna 208B as installed on Wipline
model 8750
amphibious floats.
As a part of the float installation, the following
additional changes are made to the landplane:
1. The hydraulic landing gear retraction system
components and cockpit controls are added
2. The landing gear emergency gear operation
hand pump and system are added
3. A water rudder steering system is installed
4. Auxiliary Vertical Fins (Finlets) are added
5. A seaplane extended chord rudder is installed
6. TKS pod & reservoir (if equipped) is
removed
Operational information is detailed in the
Cessna 208 Airplane Flight Manual Supplement
or Cessna 208B Airplane Flight Manual
Supplement.
Actual displacement for each float in fresh
water is:
Amphibian:
at 100% Buoyancy = 8240 pounds
at 80% Reserve = 9155 pounds
Seaplane:
at 100% Buoyancy = 8741 pounds
at 80% Reserve = 9712 pounds
