AIRCRAFT MAINTENANCE MANUAL
DFE-AMM-AR1
Rev. 1 – 07/24/2014
3-21
3.6.
STRUCTURAL CONTROL SURFACES
3.6.1. Description
•
Longitudinal control system
The airplane is equipped with a classic dual control system. The elevator is controlled by control
sticks, with connecting rods and arms. A control stick push/pull movement is transmitted, by a rod inside the
quadrant between the seats to the elevator through a two-armed lever located underneath the baggage
compartment floor cover.
From there two control cables with turnbuckles transmit a longitudinal motion towards the two-armed
lever of the elevator. A control stick motion is limited by two stops. Both control sticks have a common "push-
down" stop on the center-section and each control stick has a "pull-up" stop formed with a reinforcement
riveted on the front edge of each seat. The rods have adjustable ends and swivel bearings to adjust the
elevator deflections.
•
Lateral control system
The ailerons are controlled by control sticks, with connecting rods and arms. A control stick lateral
motion is transferred by a short rod in the cockpit to a longitudinal movement of a longer rod in the wing. This
in turn transfers to the angular displacement of a two-armed lever attached to the wing main spar. The two-
armed lever angular movement is transferred to the ailerons by short rods. The rods have adjustable ends to
adjust the aileron deflections. The control stick has a termination stop.
Figure 3-25 – Longitudinal and lateral control system layout (Fuselage)
