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nd
Edition – Rev 0
55-20
RUDDER – DESCRIPTION AND OPERATION
55-20 RUDDER
DESCRIPTION AND OPERATION
The vertical tail consists of an all-metal light alloy structure. Vertical stabilizer tip is
made of two pieces: one fixed to the fin and the other as a part of the rudder. The rudder
composite tip can accommodate navigation and strobe lights.
The vertical stabilizer consists of a twin spar with wrap-around stressed skin paneling.
An attachment plate (1) secures the vertical stabilizer’s front spar to the penultimate
tailcone frame while the rear spar is extended to attach directly into the last tailcone
ordinate (2).
The rudder consists of an aluminum alloy torque box made of formed sheet metal ribs
(4) and
Figure 10. – Fin and rudder
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