Elevator; Pitch Trim - Daher-Socata TBM 900 Pilot's Information Manual

SECTION 7
PILOT'S OPERATING HANDBOOK
DESCRIPTION

ELEVATOR

(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

(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" circuit breaker.
Manual control wheel is installed vertically on left side of pedestal console.
Page 7.4.6 Edition 0 -- October 31, 2013
Rev. 1