Automatic Flight Flashcards
What is the T/O pitch angle logic for AEO and OEI?
AEO: V2+10. OEI: below V2 = V2; between V2 & V2+10 = present speed; above V2+10 = V2+10
Explain GA logic?
GA mode first guidance sets pitch at 8*. When IAS is greater than the target speed, the guidance will be the speed according to: AEO = Vref+20; OEI = Vac (approach climb)
When does the AP disengage? (9)
AP on guidance panel is pushed, any manual pitch trim is activated, either AP/TRIM disconnect button is pushed, stick shaker is activated, flight controls put in direct mode, aileron/elevator disconnect handle pulled, overpowering the yoke, internal system failures, windshear escape guidance
When does the AT engage after you’ve hit AT on the ground? In flight?
TLA > 50*. > 400’ AGL.
When does the AT disengage? (5)
When AT is pushed, TLA difference > 8*, TL at idle with WOW or wheel spin up, pushing thrust levers into MAX, internal system failure
What is FPA?
The Flightpath Angle is a pilot selectable pitch attitude (in degrees) of climb or descent.
What do the take off guidance crossbars do?
Maintain extended runway centerline, maintain pitch guidance according to slat/flap setting.
When will the FD automatically come up? (3)
TOGA button is pressed, autopilot is activated, windshear detection.
Can the yaw damp be deactivated if the autopilot is on?
Yes, it is independent of the autopilot.
When is CRZ automatically selected? (3)
Desired cruise airspeed achieved, and +100ft of selected altitude, or at selected altitude for 90 seconds.
What does the red AP/TRIM DISC button on the yoke do?
Disconnects the autopilot and stops all trim activation if button is pushed and held.
When is half bank automatically selected? What is the bank angle?
FL290. Whatever you have set in the MCDU. (it should be set to 15°). (Note: LNAV mode does NOT use half bank)