AFCS | Autothrottle

Question 1

Outline autothrottle

Answer 1

Autothrottle controls the engine thrust within engine design parameters, with the throttle position being controlled to maintain a specific engine thrust or target airspeed

Question 2

Outline autothrust

Answer 2

When using autothrust, the thrust levers are set to a fixed position, which defines the maximum thrust available and the TMC controls the FADEC

Question 3

TMC is the ___

Answer 3

Thrust Management Computers

Question 4

Autothrottle and autothrust can be in the states: ___

Answer 4

• Armed and off
• Engaged and Disengaged
• Active and Inactive

Question 5

The two fundametal modes of operation of the autothrottle and autothrust are____

Answer 5

• Set and maintain a predefined engine thrust

- Set and maintain a predefined speed

Question 6

When the autopilot mode is controlling airspeed, the A/T controls ___ ___ to a specific value.

Answer 6

engine thrust

Question 7

When the autopilot mode is controlling the vertical flight path, the A/T maintains ___ through ___ control

Answer 7

airspeed thrust

Question 8

A/T modes of operation include:

Answer 8

• N1
• GA (Go around N1/EPR)
• FMC SPEED
• MCP SPEED