Airplane Description
DV 20 E AFM
Page 7 - 6 Rev. 2 22-Mar-2022 Doc. No. 4.01.25-E
7.3 FLIGHT CONTROLS
The ailerons, elevator and wing flaps are operated through control rods, while the rudder
is controlled by cables. The flaps are electrically operated. Elevator forces can be balanced
using the electric trim system. Rudder forces can be balanced by a trim tab on the rudder,
which is also operated by a Bowden cable.
Ailerons
Construction: GFRP/CFRP composite sandwich.
Hinges: There are 4 hinges, which are attached to the wing with a bolt and a sheet
metal bracket.
Operation: Each aileron is connected with an aileron control horn to the push rods
of the aileron control system. A rod end bearing is screwed into a steel
push rod and locked by means of a jam nut which has locking varnish
applied to it. Damage to this varnish can indicate a twisting and thus a
change to the adjustment. The connection between the rod end bearing
and the control horn is a bolt, the nut of which is likewise sealed with
locking varnish.
The aluminum control horn is attached to the aileron with 3 screws.
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