Flight Controls

It ties the ailerons together in such a way that when one aileron deflects downward, the other one is pulled upward.

7 by 19.

Carbon steel coated with tin or zinc, or corrosion-resistant steel.

Any working length of a cable where the cable runs over, under, or around a pully, sleeve, or through a fairlead; or any section where the cable is flexed, rubbed, or worked in any manner; or any point within 1 foot of a swaged-on fitting.

With swaged, threaded terminals on the ends of each cable, connected with a turnbuckle.

No more than 3°.

The large amount of aluminum in the aircraft structure contracts so much as its temperature drops in flight that the control cables could become dangerously loose. The automatic tension regulators keep the cable tension constant as the dimensions of the aircraft change.

The stops at the control surface.

One or both ends of the push-pull rod have threaded rod ends.

To convert a linear motion to an angular or twisting motion.

A bellcrank.

The rudder rotates the airplane about its vertical axis.

A surface with part of its area ahead of the hinge line. When the surface is deflected, the portion ahead of the hinge aids the movement.

In the Type Certificate Data Sheet for the airplane.

An out-of-balance control surface can cause severe flutter.

In the aircraft maintenance manual.

Worn hinges or improperly adjusted control cable tension.

Elevators rotate the airplane about its lateral axis.

A single-piece horizontal tail surface that acts as both the horizontal stabilizer and the elevators. A stabilator pivots about its front spar.

Aileron movement in which the upward-moving aileron deflects a greater distance than the one moving downward. The up aileron produces parasite drag to counteract the induced drag produced by the down aileron

An aileron with its hing set back from the leading edge so that when it is deflected upward, part of the leading edge projects below the wing and produces parasitic drag to help overcome adverse yaw

Movable control surfaces on a V-tail airplane that are controlled by both the rudder pedals and the control yoke. When the yoke is moved in or out, the ruddervators move together and act as the elevators. When the rudder pedals are depressed, the ruddervators move differentially and act as a rudder.

Ailerons rotate the airplane about its longitudinal axis.

There are spoilers intended for use in flight and others that are used only on the ground. Inflight spoilers are used to aid in roll control. Ground spoilers are used after touchdown to decrease lift and increase drag.

To reduce the force needed to move a primary control surface.

They allow control at lower airspeeds and reduce the speeds needed for takeoff and landing, shortening runway length requirements.

Not understanding a cable tension chart can lead to incorrect tensions. Cable tensions that are set too high can cause damage to the aircraft and premature wear of the system. Tensions set too low can cause insufficient control travel, leading to loss of aircraft control.

Incorrectly rigged flight controls can cause poor aircraft performance, or in the worst case, complete loss of aircraft control.

In the aircraft maintenance manual.

Incorrect tools and procedures can cause damage to the aircraft or assemblies, leading to their failure.

Proper tensions and accurate dimensions of rigging equipment is critical for airworthiness and aircraft safety.

The use of the wrong scale or adjustment block used on some tools can lead to incorrect cable tensions.