The Rudder: Like all Zodiac models, the CH 640 features an all-flying vertical tail (rudder) section for excellent effectiveness and control, especially at low speeds. The all-flying rudder provides responsive rudder control, while also minimizing weight and complexity (there’s only one vertical tail section). Two rudder bearings bolt to the rear fuselage to fix the rudder to the fuselage. |
The
rudder is dynamically balanced by a small weight installed in the
leading edge. Operation of the rudder is through the movement of the
rudder pedals. The rudder is "self centering" in flight through the nose
wheel strut bearing.
Construction of the rudder
is a conventional semi-monocoque structure. Individual aluminum ribs
riveted to a simple "U" channel spar enclosed in aluminum skins make up
the rudder. The one piece rudder control cables are connected with
turnbuckles to the rudder which can be adjusted from the outside of the
aircraft. The "self centering" and easy to adjust cables eliminate
the need for a fixed rudder trim tab.
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