User manual

Table Of Contents
Section 12.72 Part B
04 IGNITION SWITCHES
These are mounted on the yoke in front of the Captain's position and below the other Yoke
switches.
A knob marked "pull off' switches off all magnetos for "blipping" engines on the water.
Each engine has a separate switch, which controls individual magnetos and is
Marked "BOTH, L, R, OFF."
05 THROTTLE CONTROLS
The control levers project down from the cockpit roof between the two pilot seats. There is
no auto boost control so that over boosting is
Possible
If RPM and Manifold Pressure are not closely monitored. Throttle friction is adjusted by
large wing nuts each side of the mounting.
During critical maneuvers such as Take Off one pilot must always have his hand on the
throttle levers in case the Manifold Pressure alters with movement of the aircraft
06 PROPELLER CONTROLS
The propeller levers form part of the Control Quadrant located above and between the
Pilots, projecting downwards. To increase RPM (fine pitch) the levers are moved forward.
The levers are connected to the Constant Speed Units on the front of the engines via
cables and pulleys.
Friction Nuts on the quadrant adjust the friction of both the propeller levers and the
throttles. During Take-Off it is necessary for the non-flying pilot to place his /her hands on
the four quadrant levers to ensure that they do not vibrate out of setting.
Feathering buttons are mounted on the front of the control quadrant. The buttons are
operated by pushing upwards and are held in by solenoids until feathering is complete,
when they should pop out. If not the buttons must be pulled out to prevent overloading of
the electric and hydraulic systems.
During unfeathering the button must sometimes be held in while unfeathering takes place
due to the high hydraulic pressures in the system. Once unfeathering is completed they
are to pulled out (800- 1000 RPM)
07 FUEL CONTROLS
Refer to 12.3
08 MIXTURE CONTROLS
The Mixture Quadrant is located behind the Pilots on the bulkhead. The Mixture Levers are
detented at all main positions, and are connected to the carburetor via cables and pulleys.
Rev No: 00 Stichting Catalina PH-PBY
Page: 4 18 May, 2004