Comments on: difference between rudder YAW and rudder TRIM http://autosfans.com/difference-between-rudder-yaw-and-rudder-trim/ Autos Fans| New Autos, Used Cars, Auto Show, News & Reviews Thu, 18 Mar 2010 01:27:19 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: James http://autosfans.com/difference-between-rudder-yaw-and-rudder-trim/comment-page-1/#comment-56 James Sun, 10 May 2009 10:13:07 +0000 http://autosfans.com/?p=207#comment-56 The rudder pedals control the rudder, which *primarily* controls the yaw of the aircraft (direction about it's yaw axis, AKA it's vertical axis).<br><br>Rudder trim is controlled by a tab on the trailing edge of the rudder, which when adjusted "holds" the rudder in a desired position (which could be right or left of center) by aerodynamic forces acting on the trim tab. The purpose of this is to relieve the pilot of needing to apply constant foot pressure to one rudder pedal or the other for a long period of time.<br><br>The trim tab, as described by Ben Dere, is either mounted to the rudder on a hinge and is controlled by a trim control in the cockpit, or it is fixed to the rudder without a hinge as a bendable piece of metal that can only be contolled by bending the metal by hand when the aircraft is on the ground. The rudder pedals control the rudder, which *primarily* controls the yaw of the aircraft (direction about it's yaw axis, AKA it's vertical axis).

Rudder trim is controlled by a tab on the trailing edge of the rudder, which when adjusted “holds” the rudder in a desired position (which could be right or left of center) by aerodynamic forces acting on the trim tab. The purpose of this is to relieve the pilot of needing to apply constant foot pressure to one rudder pedal or the other for a long period of time.

The trim tab, as described by Ben Dere, is either mounted to the rudder on a hinge and is controlled by a trim control in the cockpit, or it is fixed to the rudder without a hinge as a bendable piece of metal that can only be contolled by bending the metal by hand when the aircraft is on the ground.

]]> By: captsead0nkey http://autosfans.com/difference-between-rudder-yaw-and-rudder-trim/comment-page-1/#comment-55 captsead0nkey Sun, 10 May 2009 10:12:50 +0000 http://autosfans.com/?p=207#comment-55 The use of rudder counter acts the yaw produced during turns and high angle of attack flight due to left turning tendency. When doing climbs and turns, the use of the rudder keeps the aircraft in coordinated flight.<br>Rudder trim is just that, trim where it it used to reduce the amount of pressure at the pedal. It is typcially used in multiengine aircraft when doing single engine flight to help hold counter act the yaw produced by the drag of the stopped engine, and the asymetric thrust of the working engine. The use of rudder counter acts the yaw produced during turns and high angle of attack flight due to left turning tendency. When doing climbs and turns, the use of the rudder keeps the aircraft in coordinated flight.
Rudder trim is just that, trim where it it used to reduce the amount of pressure at the pedal. It is typcially used in multiengine aircraft when doing single engine flight to help hold counter act the yaw produced by the drag of the stopped engine, and the asymetric thrust of the working engine.

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