AFCS

Question 1

Identify the operational items of Trim System (Parallel Actuators)

Answer 1

How’s the capacity for ForeFlight control authority
Pilot can see and feel flight control inputs
Allows for hands-off flight

Question 2

Identify the operational items of the stability augmentation system (SAS)

Answer 2

Has limited flight control authority
Pilot cannot see or feel flight control inputs
Does not allow for hands-off flight

Question 3

Low natural stability of a helicopter requires a_____ ______ of the pilot.

Answer 3

High workload

Question 4

Which switch on the cyclic is a 4-way toggle switch that allows the pilot to modify the attitude reference when operating capital ATT (altitude) mode?

Answer 4

Beep trim

Question 5

In the primary phase the uh-72 will be flown in level 3 with FTR off. To select level 3 the AFCS must first be in level ___ then press the ____ switches on the APMS followed by the ______ switch located on the _____.

Answer 5

4, Trim, FTR, Instrument Panel

Question 6

What system provides attitude hold in the helicopter?

Answer 6

Autopilot

Question 7

The uh-72 AFCS controls the ___, _____, and _____ making it a 3 axis system.

Answer 7

Roll, Pitch, Yaw

Question 8

Place the five levels of EFCS control in the proper sequence

Answer 8

1.Unstabilized (no AFCS or auto pilot on)
2.Back up SAS, (SAS actuators on only)
3.Digital SAS (autopilot on - trim motors off)
4.autopilot (attitude retention)
5. Autopilot (upper modes)

Question 9

Disengages both the back up SAS and AFCS simultaneously

Answer 9

SAS/AP CUT

Question 10

(RE) Engagement of P/R/Y back up SAS

Answer 10

SAS ON

Question 11

Opens both cyclic stick parallel actuator clutches to release stick forces and if auto pilot is active, set the new reference for the auto pilot auto trim function.

Answer 11

Force trim release FTR

Question 12

Modifies the attitude reference in ATT mode. Modifies IAS, ALT, ALTA, HDG, GA or VS reference when the respective upper mode is engaged.

Answer 12

Beep trim

Question 13

Cancels all upper modes and reverts to ATT mode.

Answer 13

AP MD DCPL

Question 14

Used in the event of a missed approach, acquires and hold a vertical speed of 1000 feet/min. After 10 seconds, the mode automatically reverts to the VS mode

Answer 14

GA (Go Around)

Question 15

Pressing the ___/___ _____ Switch on either cyclic will switch from level 4 attitude old to level 1 unstabilized.

Answer 15

SAS/AP CUT

Question 16

The SEMA’s provide the actuator input for the _____ To dampen dynamic and atmospheric disturbances?

Answer 16

SAS

Question 17

What system is used for basic stabilization of helicopters?

Answer 17

SAS

Question 18

What AFCS system makes inputs that cannot be seen in flight controls?

Answer 18

SAS

Question 19

What cyclic switch is used to turn off the back up SAS?

Answer 19

SAS/AP Cut Switch

Question 20

AFCS Levels ___ and ___ allow for hands off flying?

Answer 20

4, 5

Question 21

Answer 21

A. Sensors
B. Computers
C. Actuators

Question 22

In level 1 unstabilized, pressing the SAS ON button on the cyclic will move the system to level 2 backup SAS?

Answer 22

True

Question 23

The back up SAS is turned on when the_____ Switches are turned on or by pressing the ____ Switch on the cyclic

Answer 23

Avionics master, SAS ON

Question 24

Pressing the SAS/AP Cut Switch on the cyclic will take you to what level?

Answer 24

1

Question 25

What button on the sidewalk must be pressed to move the system from level 5 upper modes to level 4 attitude hold?

Answer 25

AP MD DCPL