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Pilot's Operating Handbook
Section 7
Description
Edition 0 - October 31, 2013
Rev. 4
Page 7.4.6
Elevator
- see figure 7.4.3
Both elevators are activated simultaneously by the same control. Each control surface
is hinged at three points to the rear part of horizontal stabilizer.
The control wheel controls the two elevators through rods, bearings and bellcranks.
A spring actuator creates a nose-down artificial force which allows a better static
stability.
Each control surface is provided with an automatic anti-tab (automaticity about 0.3),
which is also used as trim tab.
Pitch trim
- see figure 7.4.4
The pitch trim is accomplished through the two anti-tabs located on left and right
elevators.
The trim tab can be controlled electrically or manually. It is activated through cables
and a chain on two screw actuators attached to the horizontal empennage.
The electrical control consists of a switch (NOSE UP - NOSE DOWN) located on the
pilot control wheel and a servo-motor attached under the pedestal.
The electrical circuit for pitch trims is protected by the AP SERVOS breaker.
Manual control wheel is installed vertically on left side of pedestal console.
PIM - DO NOT USE FOR FLIGHT OPERATIONS