Pilot's Operating Handbook
Section 7
Description
Edition 1 - January 15, 2018
Rev. 0
Page 7.4.1
7.4 - Flight controls
Flight controls consist of roll,pitch and rudder controls,as wellas rolltrimtab, pitch trim
tab
and rudder trim tab controls.
● NOTE ●
During airplane parking, it is recommended to lock flight controls -
see figure 8.6.2
●
Roll - see figure 7.4.1
The roll control is activated by an assembly of rods and cables which links control
wheels with the ailerons and the spoilers.
Aileron displacement is combined with that of spoilers, located at upper surface of
each wing forward of flaps.
The spoiler rises from wing upper surface profile, when the aileron is deflected
upwards and remains in wing profile, when the aileron is deflected downwards.
Control wheel movement is transmitted through rods to fuselage roll lever located
under the floor. The movement is then transmitted through cables to the spoiler
mechanism and from the spoiler mechanism to wing roll lever which activates the
aileron through a rod.
A rudder / roll combination spring-type system induces roll deflection at the time of
pedals movement and vice versa.
Roll trim - see figure 7.4.2
The
roll trim is controlled by a trim tab attached at trailing edge of the L.H. aileron. The
trim tab is connected through two links to an electric actuator located in the aileron. A
trim switch located on pedestal controls the roll trim tab maneuver.
Roll trim tab electrical circuit is protected by the AIL TRIM breaker.
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