User manual

Part B Section 12.27
10 RETRACTABLE WING TIP FLOATS
The pilots operate the floats electrically. The float switch is on the Yoke. If the throttles are
retarded to below 15 inches Manifold Pressure the float warning lights will illuminate, until
the floats are down and locked. The wheel indicator lights will also be activated, together
with the nose wheel door locked light. See also Emergency Operations.
CAUTION MAX SPEED FOR OPERATING WING FLOATS
130KTS
11 FLOAT CONTROL SWITCH
The Yoke switch for electrical operation of the floats has UP-OFF-DOWN positions. The
switch should always be left at the OFF position when not in use, to de-energies the
solenoids and prevent burn out of the float motor.
WARNING: When operating the float switch it should never be moved from
UP to DOWN or vise versa without pausing at the OFF position.
The reverse of Torque can strip the gearing, damage the torque tubes and
damage the wing
If the floats have been lowered on land to tie down overnight, they may be hand cranked
up.
If the engines are used they should be warmed and then opened up enough for the
generators to be cut in (1700 rpm) before the floats are raised electrically.
Floats should always be raised before take-off on land
With floats down the airspeed is reduced by approximately 5kts and aileron control is
appreciably reduced.
Stichting Catalina PH-PBY Rev No: 00
18 May, 2004 Page: 3