Re: b737 rudder

Date:         12 May 99 02:49:14 
From:         "R W Walker" <bwalkerdiespamdie@odyssey.on.ca>
Organization: Skywalker Pangalactic Holdings
References:   1
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PBattle <PBattle3@bellsouth.net> wrote in article
<airliners.1999.490@ohare.Chicago.COM>...
> It seems there are different definitions about what rudder reversal is
out
> there. Defining it would help to clear up misconceptions.

In the broadest sense, it means a reverse in the reaction of the aircraft
to rudder pedal inputs. Usually, designers worry about aerodynamic effects,
such as stalling of the vertical stabilizer or aeroelastic deformation of
the vertical surfaces, that make the apparent response to pedal deflection
reversed.

In the most recent discussions of 737 problems, people are talking about a
possible failure within the hydraulic system that moves the rudder, that
could make the rudder move the opposite direction of what the pilot
intended.

BW