From: firstname.lastname@example.org (Ken O'Rourke) Organization: Star Link Internet Services Date: 08 Feb 96 03:21:05 References: 1 Followups: 1
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email@example.com (Kathryn Hazlett) wrote: >Why does the 727 have a two piece rudder? >What are the advantages or disadvantages of a two piece rudder? Until the 727 experts weigh in, here is my two cents on why in general it is desirable to have multiple sections of a control surface; I believe that having multiple surfaces allows you to have independent actuators on each so that in the event of a failure you maintain sufficient control authority to land. Takeoff with potential engine outs and crosswind landings require the greater rudder authority and hopefully a pilot could find a suitable airport to bring it in. Also, perhaps it is desirable to lock out one of the surfaces in cruise to minimize the exposure to actuator failures resulting in a full authority hardover.