RaaS Settings
This page describes RaaS settings and their meaning.
RaaS Settings contains following sections:
Synthetizer - how the speeches are generated,
Files - what should be pre-loaded on startup,
Thresholds - how the module should be evaluated in runtime.
Synthetizer
Synthetizer is used to generate RaaS announcements if required.
See Shared/Synthetizer Settings.
Files
To get rid of repeated file loading, this settings can set-up default files loaded automatically on startup.
Default Airports File
This file is supposed to contain information about airports and their runways. For more information, see TODO.
If the file is specified, it will be automatically loaded on module init.
Default RaaS File
This file defines the basic RaaS speeches and their properties. For more information, see TODO.
If the file is specified, it will be automatically loaded on module init.
Thresholds
A term ortho-distance is mentioned in the following text. The term ortho-distance refers to the distance of the aircraft from the runway axis - i.e. the minimum distance of the aircraft from a parallel line passing through the runway axis.
A term height is mentioned in the following test. This term refres to the airplane height above the ground level. Note that for some models, this value represents the "height" of the plane including gear, so even landed plane has small positive height.
Do not expect height to be 0 (zero) feet for landed planes.
Plane heading/bearing calculations uses simplified model of inclination evaluation. Note that there may be significant rounding error in those calculations (about +- 3 degrees) when comparing plane heading with runway bearing.
Holding Point Announcements
This announcements are made when plane is approaching to the runway, e.g.: Approachíng runway 26. Note that once this callout si done for a specific runway, it will not be invoked again until the runway is reset (see which properties do the reset below).
Max height
Unit: feet
Default value: 50 ft
If the plane height from ground is above this value, no announcements will be evaluated. Moreover, resets previous announcements. Used to suppress announcements for flying planes.
Min Ortho-Distance (m)
Unit: meters
Default value: 40 m
If the plane is under this ortho-distance from runway, no announcements will be evaluated.
Short-Long rwy thresholds
Unit: meters
Default value: 1200 m
Decides, wether the runwy is "short" or "long". Important for the further processing (see below).
Announce long rwy ortho-distance
Unit: meters
Default value: 120 m
At this (or below) this ortho-distance, the announcement will be invoked. Applies only for long runways.
Announce short rwy ortho-distance
Unit: meters
Default value: 90 m
At this (or below) this ortho-distance, the announcement will be invoked. Applies only for short runways.
Max ortho-distance
Unit: meters
Default value: 250
At or above this ortho-distance, no announcements are evaluated. Moreover, this distance resets previous announcements.
Custom ICAO-based holding-point ortho-distance
Here, you can specify the orth-distance at which (or below) the announcement is invoked for a specific airport defined by its ICAO code. In general, this overrides Announce long rwy ortho-distance and Announce long rwy ortho-distance for specific airports.
Line Up Announcements
This covers announcements done when lining up the runway, e. g. On runway 26. Those announcements for a specific runway are not repeated until the same announcements for a different runways are done.
Max height
Unit: feet
Default value: 50 ft
If the plane height from ground is above this value, no announcements will be evaluated. Used to suppress announcements for flying planes.
Max rwy ortho-distance
Unit: meters
Default value: 40 m
If the plane orth-distnace from the runway is over this value, no announcements will be made.
Max speed (IAS/kts)
Unit: kts
Default value: 20 kts
If plane indicated speed (IAS) is above this value, no announcements will be made. Used to suppress announcements for landing planes.
Max bearing-heading diff (deg)
Unit: degrees
Default value: 15°
If difference between runway bearing and plane heading in absolute is above this value, no announcements will be made. Used to suppress announcements if the plane is on the runway, but heading a different (or not aligned) direction.
Landing Announcements
Min height
Unit: feet
Default value: 50 ft
If the plane height from ground is below this value, no announcements will be evaluated.
Max height
Unit: feet
Default value: 800 ft
If the plane height from ground is above this value, no announcements will be evaluated.
Max distance
Unit: meters
Default value: 7048 m (approx 4 nautical miles)
If the plane distance from the runway threshold is above this value, no announcements will be evaluated.
Max rwy ortho-distance
Unit: meters
Default value: 300 ft
If the ortho-distance of the plane from the runway is above this value, no announcements will be evaluated. Used suppress the anouncements if the plane is not aligned with the runway.
Max vertical speed
Unit: feet/min
Default value: 0 ft/min
If the plane vertical speed is above this value, no announcements will be evaluated. Note that positive value means climb and negative value means descend. Used to suppress warnings when planes are climbing on go-arounds during interrupted approach.
Remaining Distance Announcements
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Max height
Unit: feet
Default value: 50 ft
If the plane height from ground is above this value, no announcements will be evaluated.
Max rwy ortho-distance
Unit: meters
Default value: 40 m
If the plane orth-distnace from the runway is over this value, no announcements will be made. This is used to detect if the plane has vacated the runway.
Max bearing-heading diff (deg)
Unit: degrees
Default value: 15°
If difference between runway bearing and plane heading in absolute is above this value, no announcements will be made. Used to suppress announcements if the plane is on the runway, but heading a different (or not aligned) direction.
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