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* Flight Director | * Flight Director | ||
* Changelog can be viewed [https://github.com/Octal450/IT-AUTOFLIGHT/blob/master/CHANGELOG.txt here] | * Changelog can be viewed [https://github.com/Octal450/IT-AUTOFLIGHT/blob/master/CHANGELOG.txt here] | ||
== Mode Functionality == | |||
The following is an explanation of the control loop and logic behavior in each mode. The mode names from the ITAF dialog and internal mode numbers are used as a reference. See the [[#Interface_Reference|Interface Reference]] for the properties used to read these values. | |||
=== Lateral Modes === | |||
The roll/yaw modes used by the autopilot. | |||
;HDG (0) | |||
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 (1) | |||
A GPS route is being tracked. | |||
;LOC (2) | |||
A VOR or ILS localizer is being tracked. | |||
;ALGN (4) | |||
The aircraft is being aligned with the runway for Autolands. | |||
;RLOU (4) | |||
Crosswind aileron is applied, and the rudder is used to keep the aircraft on the centerline during rollout. | |||
;T/O (5) | |||
A takeoff heading is being tracked, or the wings are being kept level, based on user configurable behavior. | |||
;ROLL (6) | |||
The ailerons are used to hold a set bank angle. | |||
=== Vertical Modes === | |||
The pitch modes used by the Autopilot. Automatic Pitch Trim is also used. | |||
;ALT HLD (0) | |||
Altitude is being held. | |||
;ALT CAP (0) | |||
The pre-selected altitude is being captured. | |||
;V/S (1) | |||
A set vertical speed is being tracked. | |||
G/S (2) | |||
A glideslope is being tracked. | |||
SPD CLB (4) | |||
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 (4) | |||
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 (5) | |||
A set flight path angle is being tracked. | |||
FLARE (6) | |||
The aircraft is flared for touchdown during and autoland. | |||
ROLLOUT (6) | |||
Those is lowered at a user configurable rate and then held on the ground via light forward pressure during rollout. | |||
T/O CLB (7) | |||
The takeoff speed (V2+10) is being held by varying pitch angle. The autothrottle is commanded to hold the thrust limit. | |||
G/A CLB (7) | |||
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. | |||
=== Throttle Modes === | |||
The modes used by the autothrottle. Autothrottle modes are coupled to the vertical modes. | |||
;THRUST (0) | |||
The throttles are driven to maintain a set indicated airspeed or mach number. | |||
;PITCH (1) | |||
The throttles are slowly driven to the idle stop for speed on pitch descends. | |||
;PITCH (2) | |||
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. | |||
;RETARD (1) | |||
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. | |||
== Installation Instructions == | == Installation Instructions == | ||
=== Installing === | === Installing === | ||
This guide will teach you how to install IT-AUTOFLIGHT to an aircraft. | This guide will teach you how to install IT-AUTOFLIGHT to an aircraft. | ||