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IT-AUTOFLIGHT: Difference between revisions
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The roll/yaw modes used by the autopilot. | The roll/yaw modes used by the autopilot. | ||
* HDG: A set heading is being tracked. The behavior of the mode can be heading select or heading hold based on pilot selection and user configurable behavior. | |||
A set heading is being tracked. The behavior of the mode can be heading select or heading hold based on pilot selection and user configurable behavior. | * LNAV: A GPS route is being tracked. | ||
* LOC: A VOR or ILS localizer is being tracked. | |||
* ALGN: The aircraft is being aligned with the runway for autolands. | |||
A GPS route is being tracked. | * RLOU: Crosswind aileron is applied, and the rudder is used to keep the aircraft on the centerline during rollout. | ||
* T/O: A takeoff heading is being tracked, or the wings are being kept level, based on user configurable behavior. | |||
* ROLL: A set bank angle is being held. | |||
A VOR or ILS localizer is being tracked. | |||
The aircraft is being aligned with the runway for | |||
Crosswind aileron is applied, and the rudder is used to keep the aircraft on the centerline during rollout. | |||
A takeoff heading is being tracked, or the wings are being kept level, based on user configurable behavior. | |||
A set bank angle is being held. | |||
=== Vertical Modes === | === Vertical Modes === | ||
The pitch modes used by the autopilot. Automatic Pitch Trim is also used. | The pitch modes used by the autopilot. Automatic Pitch Trim is also used. | ||
* ALT HLD: Altitude is being held. | |||
Altitude is being held. | * ALT CAP: The pre-selected altitude is being captured. | ||
* V/S: A set vertical speed is being tracked. | |||
* G/S: A glideslope is being tracked. | |||
The pre-selected altitude is being captured. | * SPD CLB: A set indicated airspeed or mach number is being held by varying pitch angle in order to climb. The autothrottle is commanded to hold the thrust limit. | ||
* SPD DES: A set indicated airspeed or mach number is being held by varying pitch angle in order to descend. The autothrottle is commanded to hold idle thrust. | |||
* FPA: A set flight path angle is being tracked. | |||
A set vertical speed is being tracked. | * FLARE: The aircraft is being flared for touchdown during an autoland. | ||
* ROLLOUT: The nose is lowered at a user configurable rate and then held on the ground via light forward pressure during rollout. | |||
* T/O CLB: The takeoff speed (should be set to V2+10 by the aircraft) is being held by varying pitch angle. The autothrottle is commanded to hold the thrust limit. | |||
A glideslope is being tracked. | * G/A CLB: The set go around speed (takeoff speed or current speed, whichever is higher) is being held by varying pitch angle. The autothrottle is commanded to hold the thrust limit. | ||
* PITCH: A set pitch angle is being held. | |||
A set indicated airspeed or mach number is being held by varying pitch angle in order to climb. The autothrottle is commanded to hold the thrust limit. | |||
A set indicated airspeed or mach number is being held by varying pitch angle in order to descend. The autothrottle is commanded to hold idle thrust. | |||
A set flight path angle is being tracked. | |||
The aircraft is being flared for touchdown during an autoland. | |||
The nose is lowered at a user configurable rate and then held on the ground via light forward pressure during rollout. | |||
The takeoff speed (should be set to V2+10 by the aircraft) is being held by varying pitch angle. The autothrottle is commanded to hold the thrust limit. | |||
The set go around speed (takeoff speed or current speed, whichever is higher) is being held by varying pitch angle. The autothrottle is commanded to hold the thrust limit. | |||
A set pitch angle is being held. | |||
=== Throttle Modes === | === Throttle Modes === | ||
The modes used by the autothrottle. Autothrottle modes are coupled to the vertical modes. | The modes used by the autothrottle. Autothrottle modes are coupled to the vertical modes. | ||
* SPEED: The throttles are driven to maintain a set indicated airspeed. | |||
The throttles are driven to maintain a set indicated airspeed. | * MACH: The throttles are driven to maintain a set mach number. | ||
* IDLE: The throttles are slowly driven to the idle stop for speed on pitch descends. | |||
* RETARD: The throttles are slowly driven to the idle stop for when under a user configurable radio altitude for the landing flare. On touchdown, they are driven to the idle stop at a faster speed. | |||
The throttles are driven to maintain a set mach number. | * THR LIM: The throttles are slowly driven to the thrust limit for speed on pitch climbs. In takeoff or go around modes, the throttles are driven to the thrust limit at a faster speed. | ||
The throttles are slowly driven to the idle stop for speed on pitch descends. | |||
The throttles are slowly driven to the idle stop for when under a user configurable radio altitude for the landing flare. On touchdown, they are driven to the idle stop at a faster speed. | |||
The throttles are slowly driven to the thrust limit for speed on pitch climbs. In takeoff or go around modes, the throttles are driven to the thrust limit at a faster speed. | |||
== Installation Instructions == | == Installation Instructions == | ||