GTN Xi Series Main Software Version 21.12 contains the following changes.
Compliance with this software update is recommended at the next maintenance interval.
New Interfaces
- Added support for AXIS™ Flight Displays
Flight Planning & Navigation Enhancements
- Added Destination Descent feature to assist with descent planning
- Added landing weight calculator to fuel planning page
- Added off route Direct-To waypoints to the flight plan if the flight plan does not contain an active leg
- Added Flight Plan Suspend/Unsuspend button to the flight plan page button bar
- Added option to designate a waypoint as fly-over on the flight plan waypoint menu
- Changed the default fly-by-bank angle back to 15 degrees to be consistent with other cross-side navigators
- Increased roll steering turn rate limit to 10 degrees per second during Search and Rescue, 5 degrees per second during Smart Glide™ Engine-Out Navigation, and 3.5 degrees per second for all other cases
- Expanded the Search and Rescue feature to include the Creeping Ladder pattern, and added new configurable parameters for the Sector Search pattern allowing for radial and angular spacing and including a second pass
Approach and Procedures Enhancements
- Improved visual approaches to:
- Allow selection of approach angle and final leg distance
- Provide advisory vertical guidance when terrain clearance is determined for glidepaths below the maximum approach angle
- Incrementally increase the final approach leg glidepath angle up to the maximum configured approach angle
- Changed button text to activate an approach from ‘Load Approach & Activate’ to ‘Activate VFT’ when on the Procedures and Flight Plan pages, and to ‘Activate Direct-To X’ where ‘X’ is the given transition when on the Approach Procedure page
- Changed the runway selection button text from ‘ALL’ to ‘NONE’ on the Flight Plan page procedures header
- Changed the main map menu option for Constraints from ‘Selected & Active’ to ‘Next & Selected’
- Improved destination airport selection. If an on-route Direct-To is set to an airport after an approach/arrival procedure, then it becomes the destination airport
- Enabled the Chart button on the Procedures page and Flight Plan options popup if an information chart exists for the airport procedure
Smart Glide Enhancements
- Added descending circling capability
- Improved selection of suitable airports using runway thresholds instead of only using the airport fix
- Added new visual and aural alert when an airport comes into range if one had not been available when Smart Glide was activated
- Added Runway lighting state to nighttime determination of best airport
- Changed ‘No Airport’ message to ‘No Suitable Airport’
- Improved the Best Glide indicator line
- Improved the Map display so that the Non-Directional Beacon (NDB) overlay is turned off and METAR overlay is turned on when Smart Glide activates
- Added support for the Direct-to button to activate Smart Glide when a Smart Glide switch is also installed
- Improved inconsistent confirmations when deactivating Smart Glide
- Added Smart Glide Data to flight data logs
CPDLC Enhancements
- Disabled the Preview button on the CPDLC thread popup after a WILCO is sent
- Added an indication of the validity of displayed SIGMET/AIRMET weather data to the FAA Data Comm import preview map
- Added ability to crossfill downlink messages between GTN 725Xi/750Xi units
- Added ability to include climbing/level/descending when responding with a position report (DM48)
- Added ability for COM and Transponder frequencies to be automatically imported from UM117, UM120, and UM123
- Added text to the message thread if downlink message failed to send
- Added a message to the ATC Datalink page to indicate when GTN Xi does not have valid GPS fix
Other User Interface & Feature Enhancements
- The map now shows the active flight plan in gray when an off-route direct-to is active
- System messages now include key shortcuts to applicable pages
- ‘Fuel on Board’ was renamed to ‘EST Fuel Remaining’ when displaying data from the fuel sensor
- Flight plan preview maps can now be resized to full page
- Weather radar information is now removed from waypoint information preview maps
- GPS Status page now shows Satellite Vehicle Identification (SVID) without an offset value
- Added a new system message when one or more SBAS options have been disabled by the user. A ‘SBAS Providers’ button is available with the system message to provide quick access to the SBAS Providers menu to toggle on the SBAS provider
- Moved the ‘Date/Time’ and CDI settings to sub-pages in GTN 725Xi/750Xi
- Adjusted the limits for the time-zone offset setting to be +14 and -12
- Removed the 5-minute delay after power up before showing LOI annunciation. LOI annunciation now displays at power up until GPS is acquired
- Improved the OBS/Selected course behavior between GTN Xi and G500/G600/G700 TXi
- COM1/NAV1 and COM2/NAV2 active and standby frequencies are now added to the flight data logs
- Expanded the startup database information page to include GPS 175 and GNC® 355 Radio
Software Corrections
- Corrected an issue where VNAV vertical guidance was being disabled when the aircraft was within 75 feet of the FAF altitude
CPDLC Related Software Corrections
- Corrected an issue where some aircraft with tail numbers composed of fewer than six characters were preventing FAA Data Comm from logging on
- Corrected the annunciator self-test so that it tests the CPDLC switch/annunciator
Config Mode Changes
- Corrected an issue related to not being able to enable charts in configuration mode
- Expanded some config mode settings to include an information icon when they are disabled. Pressing the button displays additional information on why the setting is disabled
- Moved System ID and Airframe type configuration settings from GTN Setup - Main System page to a new System Setup page
- Added support for loading configuration files
- Added configuration settings for AXIS
- Added configuration restriction of GDR™ 66 Remote-Mounted Digital Communication Transceiver to GTN 1
- Corrected the traffic settings reported on the configuration summary
- Changed Glide Range Ring to be automatically enabled when valid values are entered for Glide Speed and Glide Ratio
- Added configuration option to set a maximum allowed visual approach angle
- Added GWX™ 75/8000 Weather Radar antenna size to GWX configuration page
