Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Atlas - 409MC > Flight Controls > Flashcards

Flight Controls Flashcards

1
Q

Describe the function of the Stabilizer (STAB) Trim Cutout Switches, AUTO position.

A
  • Supplies hydraulic power for stabilizer trim
  • Shuts off related system hydraulic power if unscheduled trim detected.

Note:FCOM, VOL 2; 9.10.2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What surface component is moved when stabilizer trim inputs are made?

A
  • Leading edge of the movable horizontal stabilizer
  • Stabilizer trim varies the angle of incidence of the horizontal stabilizer.

Note:FCOM, VOL 2; 9.20.3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

State what occurs when the Stabilizer Trim CUTOUT Switches are in CUTOUT.

A

• Shuts off related hydraulic power to stabilizer trim.

Note:FCOM, VOL 2; 9.10.2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Describe the function of the alternate trim switches.

A
  • The switches provide trim commands through a separate control channel.
  • The switches provide an increased range of stabilizer trim travel.

Note:FCOM, VOL 2; 9.20.4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

How do the FMCs calculate correct stabilizer trim greenband?

A
  • They use calculated CG, and
  • The calculated gross weight, and
  • The takeoff thrust derate selection.

Note:FCOM, VOL 2; 9.20.4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

How does the aircraft provide a crosscheck to ensure the correct greenband has been displayed?

A

• A nose gear oleo pressure switch position is compared to the calculated greenband.

Note:FCOM, VOL 2; 9.20.4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the effect on stabilizer trim if the control wheel stabilizer trim switches are used while the autopilot is engaged?

A

• If a single autopilot is engaged, the autopilot will disengage and the
stabilizer trim will move in the desired direction.
• If multiple autopilots are engaged, the control wheel stabilizer trim
switches are inhibited.

Note:FCOM, VOL 2; 9.20.5

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

State the effect on the autopilots and stabilizer trim, if the alternate trim switches are used with any number of autopilots engaged.

A
  • The alternate trim switches override autopilot trim commands.
  • The alternate trim switches do not cause autopilot disengagement.

Note:FCOM, VOL 2; 9.20.5

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

How many spoiler panels are provided?

A

• 6 spoiler panels on each upper wing

Note:FCOM, VOL 2; 9.20.11

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Which spoiler panel does not function as a flight spoiler?

A

• Inboard spoiler on each wing

Note:FCOM, VOL 2; 9.20.7

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Which spoiler panels function as speedbrakes in flight?

A

• The four inboard panels on each wing

Note:FCOM, VOL 2; 9.20.11

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Which spoiler panels function as ground spoilers when on the ground?

A

• All six spoiler panels on each wing

Note:FCOM, VOL 2; 9.20.11

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Which spoiler panel is displayed on the EICAS status display?

A

• 4th spoiler panel in from the wingtip on the left wing.
• (this panel functions as a flight spoiler, speedbrake, & gnd spoiler)
• the outermost panel on the right wing (flight spoiler and ground spoiler
only, and therefore, speedbrake extension is not displayed on the right
wing’s spoiler position indicator)

Note:FCOM, VOL 2; 9.20.12

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Which spoiler panels are extended with the speedbrake lever in the flight detent position?

A
  • The two inboard spoilers on each wing extend to mid-travel.
  • The two middle spoiler panels on each wing extend to full travel.

Note:FCOM, VOL 2; 9.20.12

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

When do the spoiler panels extend to the UP position during landing, if the speedbrake lever is ARMED?

A
  • Thrust levers 1 and 3 near idle
  • Main landing gear touch down.

Note:FCOM, VOL 2; 9.20.12

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

When do the spoiler panels extend to the UP position during landing if the speedbrake lever is NOT Armed?

A
  • Thrust levers 1 and 3 near idle
  • Main landing gear on the ground
  • Reverse thrust levers 2 or 4 pulled up to the idle detent

Note:FCOM, VOL 2; 9.20.12

17
Q

Since the speedbrake lever is in the DN position during takeoff, what action provides an automatic spoiler function for RTO?

A

• Reverse thrust levers 2 or 4 pulled to the idle detent.

Note:FCOM, VOL 2; 9.20.12

18
Q

Which elevator panels are displayed on the Surface Position Indicator?

A

• Left and right outboard elevator positions

Note:FCOM, VOL 2; 9.10.14; 9.20.2

19
Q

What can you do if you lose elevator control due to a jam?

A

• When significant manual force is applied to the control column, shear outs between the inboard and outboard elevators allow elevator control to be regained

Note:FCOM, VOL 2; 9.20.2

20
Q

Describe the elevator feel system.

A
  • Mechanism provides artificial feel at control columns.
  • Force increases as airspeed increases
  • If both hydraulic systems 2 and 3 fail, mechanical springs provide feel force. Feel force is no longer a function of airspeed.

Note:FCOM, VOL 2; 9.20.2

21
Q

For go-around protection, what action drives the speedbrake lever to the DN position?

A

• Thrust lever 1 or 3 advanced from the idle position, regardless of whether ground spoilers were automatically or manually selected.

Note:FCOM, VOL 2; 9.20.12

22
Q

How does the aileron lockout system work, and what is its purpose?

A

• How it works: Locks the outboard ailerons in the neutral position at 238
knots
• Purpose: Permits full travel of the outboard ailerons at low airspeeds,
and
• Prevents over-controlling at high airspeeds, and
• Provides the required roll authority at low airspeeds.

Note:FCOM, VOL 2; 9.20.7

23
Q

What would happen if you use aileron trim with the autopilot engaged?

A
  • The aileron neutral point is repositioned.
  • When the autopilot is disengaged, the wheel and ailerons move to the repositioned aileron neutral point.
  • The airplane responds with roll proportional to the amount of aileron trim input.

Note:FCOM, VOL 2; 9.20.7

24
Q

How do the rudder ratio changers work?

A
  • Rudder ratio changers gradually reduce each rudder surface’s response to pedal inputs as airspeed increases.
  • The system protects the vertical tail from stresses caused by large rudder surface deflections at high airspeeds.

Note:FCOM, VOL 2; 9.20.9

25
Q

What is the purpose of the yaw dampers?

A
  • To improve airplane lateral and directional stability
  • To provide turn coordination

Note:FCOM, VOL 2; 9.20.10

26
Q

Which elevators, inboard or outboard, move as a direct result of control column
inputs?

A

Inboard

27
Q

Which spoilers panels function as speedbrakes in flight?

A

The four inboard panels. The two inboard spoilers extend to mid travel only.

28
Q

Which spoiler panels operate with the ailerons to provide roll control?

A

All spoilers except the inboard one on each wing.

29
Q

Which spoilers panels function as ground spoilers?

A

All six spoilers on each wing.

30
Q

How does the airplane calculate the correct green band position for takeoff?

A

The FMC use center of Gravity, gross weight, and takeoff thrust setting to calculate the correct green band.

Atlas - 409MC (40 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions