User manual

Table Of Contents
Part B Section 12.27
12.27 AIRCRAFT CONTROLS
01 GENERAL
All control runs are duplicated with each Pilot offered full control of the aircraft, from their
Pilot's seats. There are no power-assisted controls; cable runs plus associated pulleys,
turnbuckles, chains and sprockets operate all flight controls. All controls are adjustable.
Because of their large area, the control surfaces exert large forces on the control
mechanism and the pilot. When taxiing on land the rudder lock is left on, but on the water
rudder control is necessary for maneuvering.
02 CONTROL COLUMN
The yoke incorporates aileron and elevator controls and the horizontal yoke bar provides a
mounting for a variety of switches. The mechanical control lock can be left in place and
removed as part of the Line Up checks.
03 RUDDER AND ELEVATOR
These surfaces have an aluminium frame and are fabric covered. Both have metal trim
tabs controllable from the Flight Station.
04 RUDDER CONTROLS
Two sets of rudder controls operate conventionally and the pedals are adjustable for Pilot
leg length. Pilot’s seats are adjustable for comfort, and to ensure complete movement of
all controls is possible.
WARNING: Failure to properly adjust seat and rudder pedals to ensure full travel will
place the aircraft at risk should engine failure occur soon after take off.
05 ELEVATOR CONTROLS
Forward and rearward movement of the Yoke operates elevators
06 AILERONS
The two ailerons have aluminium frames and are fabric covered. The port aileron has a
metal trim tab, which is adjusted from the flight deck. The Starboard aileron has a fixed tab
adjustable only when the aircraft is on the ground.
07 CONTROL LOCKS
Elevator and ailerons are clamped by means of a detachable bar. This bar is secured to
the left column by pins and the Captain's seat belt. The control-locking bar locks both
columns via the Yoke.
The rudder has a separate locking pin activated by a lever on the fuselage to the left of the
Captain's seat. It is usually left locked for taxiing, unless on the water when full rudder may
be required.
Gust damage can occur to the control surfaces and control runs in windy conditions on the
ground. If the elevator and aileron lock is out, it is important to hold the control column
Stichting Catalina PH-PBY Rev No: 00
18 May, 2004 Page: 1