Autopilot

Question 1

State the ways to disengage autopilot.

Which of these is the preferred method?

Which of these stores the datums entered?

Answer 1

AP Engage/ disengage switch.
ICO button.
Stick force cut out.
Manual tailplane trim used.
Standby tailplane trim switch guard raised.
Landing gear lowered.

ICO button is preferred method.

Only the AP Engage/ disengage switch stores the datums.

Question 2

Which busbar supplies the autopilot with power?

Answer 2

The 28V DC Main Busbar.

Question 3

With no altitude or course or heading datums stored, what will the AP do if activated when:

Vertical speed >500fpm

Vertical speed <500fpm

Bank angle >7 degrees

Bank angle <7 degrees

Answer 3

Vertical speed >500fpm: AP holds current pitch altitude up to a maximum of +-30 degrees.

Vertical speed <500fpm: AP will hold current altitude.

Bank angle >7 degrees: AP holds current bank angle up to a maximum of 60 degrees.

Bank angle <7 degrees: AP rolls wings level and holds current heading.

Question 4

What altitude setting does the AP use when a datum is set?

Answer 4

Whatever is set in the HUD.

Question 5

What would cause an audio warning of “Altitude, Altitude”?

Answer 5

An altitude deviation of more than 200ft when in autopilot - AP has probably failed.

Question 6

Is the AP cleared for altitude acquire?

Answer 6

No, altitude hold only.

Question 7

When acquiring a newly entered heading, up to what AoB will the AP use?

Answer 7

45 degrees AoB.

Question 8

State the conditions that will prevent the AP from being engaged when AP button pressed.

Answer 8

Landing gear not up.
Pitch over +-35 degrees.
AoB over 70 degrees.
Vertical speed over +-18,000fpm
AP failed.

Question 9

State the speed and height limits imposed on AP use.

Answer 9

AP use only permitted between:
200KCAS and 500KCAS (/0.85M)
1000ft AGL and FL420

Question 10

Can flap be used in conjunction with Autopilot?

Answer 10

Only combat flap.