Flight Controls and Hydraulics

Question 1

The cyclic controls _______ attitude with fore and aft movement of the cyclic and the left and right tilt of the main rotor with lateral (left and right) movement.

Answer 1

Pitch

Question 2

Which flight control changes the blade pitch equally on all four main rotor blades?

Answer 2

Collective

Question 3

Select the correct button on the cyclic:

AP MD DCPL (Autopilot Mode Decouple) cancels all upper modes and reverts to ATT mode when pressed for less than 1 second

Answer 3

Question 4

Which hydraulic system boosts the tail rotor controls?

Answer 4

2 System

Question 5

When pushing left pedal, which direction will the helicopter turn around the yaw axis?

Answer 5

Left

Question 6

The component depicted in the graphic below increases hydraulic fluid pressure to provide the forces to move the actuators.

Answer 6

Hydraulic Pump

Question 7

Which component transmits the three amplified main rotor control signals to the swashplate?

Answer 7

Mixing Lever Assembly

Question 8

When pushing left pedal, the thrust/pitch of the tail rotor thrust is ____________________ causing the nose of the aircraft to turn left.

Answer 8

Increased

Question 9

What component acts as the yaw Stability Augmentation System (SAS) for the UH-72A, increasing aircraft stability by damping disturbances due to wind, turbulence.

Answer 9

SEMA (Smart Electro-Mechanical Actuator)

Question 10

Are cyclic and collective control inputs independent of each other?

Answer 10

Yes

Question 11

When pushing right pedal, which direction will the helicopter turn around the yaw axis?

Answer 11

Right

Question 12

Select the correct button on the collective:

Go-Around (GA) mode button, used in case of a missed approach.

Answer 12

Question 13

Which flight control allows the pilot to change the pitch and roll (bank angle) of the aircraft?

Answer 13

Cyclic

Question 14

What are the CAUTIONS associated with operating the hydraulic test switch?

HYD Test switch ______ _______ _____Operated during flight

Observe _ _ Limits during hydraulic test.

Answer 14

Must not be, MM

Question 15

During extended ground operations, and while conducting the Automatic Flight Control System (AFCS) Test during run-up, the collective must be secured with the _________________.

Answer 15

Collective Lock

Question 16

Select the correct button on the collective:

Wiper switch, allowing for a single swipe of the wiper blade.

Answer 16

Question 17

Select the correct button on the cyclic:

SAS/AP CUT (Stability Augmentation System / Autopilot Cut) disengages the SAS (3-axis backup SAS) and AFCS simultaneously

Answer 17

Question 18

Which flight control allows the pilot to counteract main rotor torque and control the helicopter around the yaw axis?

Answer 18

Pedals

Question 19

Which component provides a constant resistance in the pedals to prevent over-control of the tail rotor?

Answer 19

Yaw Brake

Question 20

Which axis of the helicopter does the cyclic control?

[1] and [2] or [3] and [4]

Answer 20

Pitch
Roll
Lateral
Longitudinal

Question 21

Select the correct button on the collective:

4-Way switch used to adjust engine trim when operating in the manual mode (MAN mode) only.

Answer 21

Question 22

Select the correct button on the collective:

Landing on search light switch (on/off)

Answer 22

Question 23

Select the correct button on the cyclic:

RESET pushbutton enables the pilot to acknowledge each caution (CAD indication and master caution light).

Answer 23

Question 24

Which component drives the hydraulic pumps?

Answer 24

Main Transmission

Question 25

What component transmits the pilot’s flight control movements to the hydraulic actuators?

Answer 25

Flexball Cable

Question 26

Which component transmits flight control signals from the swash plate to the main rotor blades?

Answer 26

Pitch Change Link

Question 27

What sub component of the number 2 hydraulic system boosts the control signals from the pedals to reduce pilot workload.

Answer 27

Tail Rotor Actuator