Bristell B23
Airplane Maintenance Manual
Chapter 27
Issue: 30-Sep-2020
Chapter 27 Page 19
27-30
Elevator Control
The elevator is controlled by moving the control sticks forward and
aft. A system of transmission levers and pushrods transfers the
movement of control sticks to the elevator. Pushrods are led through
the central channel between the seats to the two-arm lever which is
located on the fin spar. Lever deflection is transferred to the elevator.
Pushrods have adjustable rod-ends with spherical bearings at the
ends, enabling elevator deflection adjustment. The elevator deflection
is limited by travel stops (See Chapter 27-30-05).
Figure 9
Elevator Control
An electric actuator is installed in the horizontal stabilizer. It is used
to control the elevator trim tab (also working as anti-servo tab) to
which it is connected via a threaded rod (see also Chapter 27-00-03).
Control switches are integrated part of grip on the left control stick
(optional on both control sticks). A LED position indicator is installed
on the instrument panel in the pilot’s view field (independent from
EFIS).
