Assembly and Rigging

Question 1

What are three types of commonly used flight control systems

Answer 1

They are the cable, The push pull tube, And the torque tube system.

The cable system is most widely used because deflections of the structure to which it is attached do not affect the operation

Question 2

What is used in large metal aircraft to keep control cable tension within acceptable limits

Answer 2

Cable tension regulator

Question 3

What is a fairlead

Answer 3

It is a cable guide that slightly deflects straight run cables around structural features such as bulkheads or lightning holes

Question 4

How much is cable to flexion acceptable due to fairleads

Answer 4

3°

Question 5

Where does failure of a common cable occur most frequently

Answer 5

Where cables pass over pulleys and through fairleads

Question 6

Which flight control services are considered the primary group

Answer 6

Elevators, ailerons, Rudder

Question 7

Which flight controls are considered the secondary group

Answer 7

The trim tabs, spring tabs, wing flaps, servo tabs, anti-servo tabs,

They do not alone cause rotation of the aircraft about its axis

Question 8

Which flight controls are in the auxiliary group

Answer 8

Flaps, speed breaks, spoilers, slats, leading edge slats, slots

Question 9

How do wing flaps perfect landing speed and approach angle of an aircraft

Answer 9

The use of flaps increase the camber of a wing and therefore the lift of the wing, making it possible for the speed of the aircraft to be decreased without decreasing the lift produced by the wing.

This permits a steeper glided angle and lower speed to be obtained for the landing approach

Question 10

What is a balance tab

Answer 10

It is an auxiliary control with fixed linkage that is designed in such a way that when the primary control surface is moved the tab moves in the opposite direction

Arrow dynamic forces acting on the tab assist the pilot and moving the control surface

Question 11

What is a trim tab

Answer 11

It is an auxiliary control attached to the trailing edge of a primary control service that is positioned by moving of the cockpit control to reduce the workload on the pilot in maintaining a desired flight attitude

Question 12

What is the purpose of the collective pitch control on a helicopter

Answer 12

It is used to change the pitch of the main rotor blade therefore increasing or decreasing lift

Question 13

Why is it important for the blades of a helicopter rotor system to be tracked

Answer 13

To reduce vertical vibrations

Question 14

What is the most efficient way to check a helicopter rotor for dynamic balance

Answer 14

Use of a balance analyzer computer

Question 15

What unit on a helicopter is used to compensate for the torque created by the main rotor

Answer 15

The tail rotor

Question 16

What control operates the helicopter tail rotor

Answer 16

The anti-torque petals

Question 17

What are the three axis of an aircraft, and which control Surfaces Causey aircraft to move about each axis

Answer 17

They are longitudinal, lateral, vertical

Longitudinal axis Extends from nose to tail and uses Ailerons for a roll

Lateral Axis extend from wingtip to wing tip Using the elevators for pitch

Vertical axis passes through the center of the airframe from top to bottom and uses the rudder for y’all

Question 18

When installing an aircraft bolt what precautions would you take regarding the position of the bolt

Answer 18

Where possible, the bolt head should be positioned on top with when the bolt is installed vertically, and the bolt head should be forward when it is installed horizontally

Question 19

How is the proper torque corrected for during assembly and rigging in some single engine Aircraft

Answer 19

The leading edge of the vertical stabilizer offset to the longitudinal center line to counteract engine torque

Question 20

What reference publications should be used to rig aircraft, including the control system

Answer 20

You should refer to the aircraft specifications or type certificate data sheet issued by the FAA and also the maintenance manual issued by the manufacture

Question 21

What are vortex generators

Answer 21

Small, low aspect ratio airfoils mounted on The upper surface of the wing. Their function is to dampen shock induced separation of the airstream which results in a stall

Question 22

What is a servo tab

Answer 22

A cockpit control adjustable tab attached to the trailing edge of a primary control surface. The tab moves opposite the direction of the control surface producing an Aerodynamic force that moves the primary

Question 23

What factors are used to determine the proper cable tension

Answer 23

The size of the cable and the outside temperature

Question 24

Where can you find instructions for jacking one wheel of an aircraft to change a tire

Answer 24

The aircraft maintenance manual

Question 25

Why do you control services need to be statically balanced

Answer 25

Because an out of balance control surface can cause severe flutter

Question 26

What is a spring tab

Answer 26

A flight control that uses a spring to assist control service movement at high speeds