Section 7 Pilot’s Operating Handbook
Description of Airplane and Systems EXTRA 500
7.3 Flight Controls
The flight controls consist of the ailerons, rudder and elevators.
The right elevator is equipped with a trim tab system. All these
control surfaces are constructed of composite material. The
primary control system is a conventional cable-system
consisting of a double control wheel (pitch and roll) with
respective coupling systems, hanging control pedals (yaw),
tubes, levers, pulleys and push-pull rods.
Between ailerons and rudder controls an interconnection, made
via springs, is installed.
7.3.a Ailerons
The coupling between the two control wheels is realized by a
direct cable-chain coupling. The cables are connected to the
control wheels by means of a longitudinal toothed wheel and
run through the windshield center strut to the wing nose and
move outboard. Then they are connected to a cable segment,
which actuates the aileron over a lever and push-rod. Each
aileron is attached to the rear spar of the wing by two hinges.
7.3.b Rudder
The pedals are placed hanging on two tubes which have a lever
arm at the right side of the cabin from where the cables run
along the cabin right side armrest panel to the empennage over
in groups positioned pulleys. Here a direct connection to the
lever arms of the rudder follows. The connection points lay
inside the tail cone adjacent to the lower rudder bearing. The
rudder is connected to the rear fin spar at three points.
7-6 26. January 2011
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