11 Automatic Control Of Thrust

Question 1

With regards to the Auto-throttle, what is the name given when:

• Pitch controls the speed
• Thrust controls the speed

Answer 1

• If pitch controls the speed, it is known as: Speed Priority
• If thrust controls the speed, it is known as: Pitch Priority

Question 2

With regards to the Auto-throttle system, which is the safer mode to be in, Speed Priority or Pitch Priority and why?

Answer 2

• Speed priority is the safer of the two

- This is because pitch priority can lead to loss of speed control

Question 3

What types of speed does the auto-throttle enable the AC to hold?

Answer 3

• Mach Number
• IAS
• N1

Question 4

What phases of flight can the Auto-Throttle be used in?

Answer 4

The Auto-Throttle can be used in all phases of flight