Flight Controls

Question 1

Which of the following controls is routed from the hydraulic deck, back inside the cabin ceiling?

Answer 1

The Yaw control is routed from the hydraulic deck, back inside the cabin ceiling.

Question 2

What is the purpose of the Cable fail switch?

Answer 2

The purpose of the Cable fail switch is to illuminate the Caution Advisory Capsule if either cable breaks.

Question 3

The purpose of the tail rotor cable turnbuckles is to _______.

Answer 3

The purpose of the tail rotor cable turnbuckles is to ensure proper cable tension.

Question 4

A Critical Safety Item (CSI) is defined as?

Answer 4

A Critical Safety Item (CSI) is defined as a part, assembly, or installation procedure with one or more critical characteristics.

Question 5

What do torque stripes identify?

Answer 5

Torque stripes identify fasteners with critical characteristic, torque, or installation procedures.

Question 6

What types of self-retaining bolts are used in the flight controls?

Answer 6

The types of self-retaining bolts that are used in the flight controls are impedance and locking type bolts.

Question 7

What prevents over travel in the flight control system?

Answer 7

The control stops prevents over travel in the flight control system.

Question 8

Where is the Directional control stop located?

Answer 8

The directional control stop is located at Yaw lever, STA 300.

Question 9

What holds the Pedals in a set position?

Answer 9

The pedals are held in a set position by the Hydrostatic Piston and spring assembly.

Question 10

What holds the Pedals in a set position?

Answer 10

The pedals are held in a set position by the Hydrostatic Piston and spring assembly.

Question 11

What prevents FOD from blocking cyclic and pedal movement?

Answer 11

Cyclic and yaw boots

Question 12

What type of controls are the cyclic sticks?

Answer 12

The cyclic sticks are mechanically-coupled, lever type controls.

Question 13

Why is there a bow in the cyclic stick?

Answer 13

The bow aids in collapsing down and forward in a crash sequence.

Question 14

Which control stick has a telescoping tube assembly?

Answer 14

The copilot collective has the telescoping tube.

Question 15

What is the function of the collective?

Answer 15

The collective provides vertical control over the helicopter.

Question 16

With friction full on, what is the force required to start moving the collective?

Answer 16

With friction full on, it takes 20-40 lbs of force to start moving the collective.

Question 17

How are the Torque Shafts matched together?

Answer 17

The Torque Shafts are all serial numbered and matched together.

Question 18

What is the function of the Collective Balance spring?

Answer 18

The balance spring counters the weight of the collective.

Question 19

What function does the Torque Shaft perform in the Flight Control System?

Answer 19

The Torque Shaft converts a push-pull movement into rotating movement.

Question 20

What is the purpose of the Mixer in the Flight Control System?

Answer 20

The Mixer Assembly provides mechanical coupling between the collective inputs, for the pitch, roll, and yaw channels.

Question 21

Maximum mixing occurs at what airspeed range?

Answer 21

Maximum mixing occurs from 0 to 40 knots.

Question 22

During the Collective/Airspeed to Yaw electronic coupling, what component does the AFCC or SAS/FPS computer give commands to in order to change the tail rotor pitch?

Answer 22

The AFCC or SAS/FPS computer gives commands to the Yaw Trim Actuator to change the tail rotor pitch.

Question 23

What type of protractor is used when rigging the UH-60 helicopter?

Answer 23

The digital or universal propeller protractor is used when rigging the UH-60 helicopter.

Question 24

When is a Main Rotor Complete rig required?

Answer 24

A Main Rotor Complete rig is required after a hard landing, or by the direction of the maintenance officer.

Question 25

A main rotor must be in proper rig before any __________.

Answer 25

The main rotor must be in proper rig before any rigging is to be completed on the tail rotor section.

Question 26

What is rigged before the Tail Rotor can be rigged?

Answer 26

The Main Rotor must be in rig before you rig the Tail Rotor.

Question 27

How many hours pass before cable tension is verified?

Answer 27

Cable tension is verified and written up 9-11 hours until stabilized.

Question 28

When performing the quality control checks, check the cables, pulleys, and fair-leads for ____________.

Answer 28

When performing the quality control checks, check the cables, pulleys, and fair-leads for condition and proper routing.

Question 29

A tail rotor complete rig is required whenever any major changes in the tail rotor flight controls are made, or when __________.

Answer 29

A tail rotor complete rig is required whenever any major changes in the tail rotor flight controls are made, or when adjustments are made to flight controls not covered in the tail rotor rig check.