Flight Controls

Question 1

What are the primary flight controls

Answer 1

1) Aileron
2) Rudder
3) Elevator

Question 2

What are the secondary flight controls

Answer 2

1) Flaps
2) Multi Function Spoilers
3) Trim: Stabilizer

Question 3

How are the following controlled and actuated:

Ailerons
Elevators
Rudder
Flaps
Multi Function Spoilers
Trim
Spring Loaded Rudder Booster (SLRB)
Stick Pusher

Answer 3

1) Primary Flight Controls are Mechanically Controlled and actuated

2) Flaps, Multi Function Spoilers, Trim, SLRB and Pusher are all electrically controlled

3) Flaps and Trim are Mechanically Actuated

4) Spoilers, SLRB and Pusher are Hydraulically Actuated.

Question 4

What items are disabled when the quick disconnect button is pressed and held

Answer 4

1) Autopilot
2) Yaw Dampner
3) Trim
4) Stick Pusher

Question 5

What items remain disabled when the quick disconnect button is pressed and held

Answer 5

1) AP
2) YD

Question 6

What is the flap position in degrees for each of the following flap lever positions?

Answer 6

Flaps 1: 8
Flaps 2: 26
Flaps 3: 26
FULL: 35

Question 7

Which functions are controlled through the Flight Control Electronics Units 1 and 2 (FCE 1 and 2)

Answer 7

FCE 1: Flaps, Backup Trim
FCE 2: Manual Trim, Automatic Trim, Speed Brake Configuration Trim and Multi Function Spoilers.

Question 8

With regard to design, how is pitch trim force accomplished?

Answer 8

An electric motor driven actuator moves the horizontal stabilizer angle of incidence.

Question 9

What is the max duration of trim (all 3 axes) prior to cutout

Answer 9

3 seconds

Question 10

Which axis of trim generates an aural alert when command exceeds 3 seconds

Answer 10

Pitch Trim only

Question 11

How are pitch trim commands normally issued with the AP disengaged

Answer 11

The spring loaded control wheel pitch trim switch commands the Flight Control Electronics (FCE 2), which in turn commands the pitch trim actuator (PTA)

Question 12

How are pitch trim commands normally issued with the AP engaged

Answer 12

The AFCS commands the FCE2 which in turn commands the PTA

Question 13

How are pitch trim commands issued with the PITCH BKP MODE switch in the BKP position

Answer 13

The spring loaded PITCH BKP DN/UP trim switch commands the FCE1. which in turn commands the PTA

Question 14

Is the AP available with the PITCH BKP MODE switch in the BKP position

Answer 14

No

Question 15

How are roll trim commands issued

Answer 15

The spring loaded ROLL trim switch directly commands the Trim Actuator Controller (TAC)

Question 16

How are yaw trim commands issued

Answer 16

The spring loaded YAW trim switch directly commands the Trim Actuator Controller (TAC)

Question 17

Which axis of trim commands are issued through the Flight Control Electronics (FCE)

Answer 17

Pitch only -

1) Manual (AP off) and Automatic (AP on) is through FCE2
2) Backup through FCE 1

Question 18

How does the automatic pitch trim (AP On) avoid the 3 second cutout and alert

Answer 18

Automatic pitch trim limits its own continuous input to less than 3 seconds

Question 19

Is pitch trim mode rate a function of airspeed in both Normal and Backup modes?

Answer 19

Yes, in both Normal and Backup the higher the airspeed, the lower the rate and vice versa

Question 20

Are roll and ya trim rate a function of airspeed

Answer 20

No, they operate at a fixed rate

Question 21

Describe the function of the ventral rudder under the following conditions

Weight on Wheels below 60 KIAS
Above 60 KIAS, YD off
YD Engaged

Answer 21

Weight on Wheels below 60 KIAS: Centered
Above 60 KIAS, YD off: YD Mode
YD Engaged: Streamlining mode

Question 22

What are the 3 functions of the Multi Function Spoilers

Answer 22

1) Roll Spoiler
2) Ground Spoiler
3) Speed Brake

Question 23

What criteria must be met for the Multi Function Spoilers to deploy or remain deployed with the SPEED BRAKE switch in the OPEN position

Answer 23

1) Flaps Retracted
2) Thrust Lever Angle less than 38 deg (MAX CRZ)
3) Airspeed less than 125 KIAS

Question 24

What criteria must be met for the Ground Spoilers to arm

Answer 24

Wheel speed of 50 knots OR Weight off Wheels 10 seconds

Question 25

What criteria must be met for the ground spoilers to deploy

Answer 25

1) Both Thrust Levers Idle
2) Weight on Wheels
3) Wheel speed greater than 50 knots

Question 26

Below what wheel speed are the Ground Spoilers dis-armed

Answer 26

45 knots

Question 27

What is the purpose of the Ventral Rudder

Answer 27

To act as a YD when YD is off.

Question 28

Will the spoiler panels remain deployed if any WOW returns to air after touchdown (bounce landing)

Answer 28

Yes, unless the aircraft returns to air for more than 10 secs