Cirrus Software for GTE DUATS

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Software and data file downloads are further down on this page.

GTE DUATS is pleased to offer Cirrus for GTE DUATS, the Windows gateway to the Direct User Access Terminal System. Cirrus will connect to DUATS via our free 1-800 number (1-800-767-9989) and via the Internet.

This software, developed exclusively for GTE by MentorPlus Software, allows you to request most DUATS functions off-line using an intuitive graphic interface. After you decide on what you need for your flight, all you need to do is click on the "Dial" button (for the 1-800 number) or the "Connect" button (for the Internet) and Cirrus downloads the requested information without further user intervention. You may immediately review the information in a window within Cirrus or recall it later from file(s) saved to your disk.

Cirrus lets you view your route of flight graphically with its extensive database of airports and navigational aids by pointing and clicking on a map. You can use the DUATS automated flight planner to rapidly plan your flight. Cirrus can obtain from DUATS a full weather briefing for your selected route of flight, or for specified areas.

Cirrus example

Additionally, by downloading graphic weather maps you may see at-a-glance the weather on your route of flight.

New Features of Cirrus Version 3.03

Internet Connectivity Using Cirrus Version 3.03

You can now access all the functions of GTE DUATS, including enhanced free Color Graphics, through an Internet Connection via your ISP. If you are connected to a Local Area Network (LAN) with Internet access, Cirrus will automatically connect. If you use a dial-up service to an Internet Service Provider (ISP) you must first make the dial-up connection.

GTE DUATS Cirrus Version 3.03 will run on Microsoft Windows 95, Windows 98, Windows NT, and later operating systems. If you are running Microsoft Windows 3.1 or Windows 3.11, you must use Cirrus 2.2. There are no plans to offer a Macintosh version of Cirrus.

Download Software and Database Updates

Download Cirrus Software

Cirrus software version 3.03 is now available! If you installed Cirrus 3.01 or 3.02, please upgrade your software to version 3.03 as soon as practical to correct a bug in the earler versions.

Windows Version Cirrus Version Instructions Software Download Size (bytes)
95, 98, NT 3.03 Instructions cirrus3_03.exe 4,062,026
3.1, 3.11, 3.1x
(incl. Windows for Workgroups)
2.2 Instructions setupex2.exe 3,178,020

Database Updates

The Cirrus Airport and Navigational Aids database is available on a 56-day update basis.

To reduce download time and make Cirrus' display less cluttered, database updates are now available in three versions: all airports, airports with at least one runway of 2,500 feet or more, and airports with at least one runway of 5,000 feet or more. Note: The type of runway and its surface could be of any construction: asphalt, concrete, turf, etc. Please check the FAA's Airport/Facility Directory or other official information to ensure that the airport's runways will meet the needs of your aircraft for landing and takeoff.

Database Updates - Chart Date September 9, 1999
Airports Included File Size (bytes)
All airports cu_rwyall.exe 633,076
Runways of 2,500 ft or more cu_rwy25.exe 415,579
Runways of 5,000 ft or more cu_rwy50.exe 150,159

Installation instructions for database updates are given below.

Cirrus Software Installation Instructions

Windows 95, Windows 98, and Windows NT

  1. Click on the hyperlink to download the file cirrus3_03.exe to your c:\temp directory.
  2. After the cirrus3_03.exe file is downloaded, use Windows Explorer to open the c:\temp directory, and then double-click on the cirrus3_03.exe file.
    Running cirrus3_03.exe will automatically extract the files for installation. The default directory for extraction is c:\temp.
  3. After the installation files are extracted, double-click on the setup.exe file. The setup.exe file will install Cirrus into your hard drive and create a GTE Cirrus program group.

Windows 3.1, Windows 3.11, and Windows for Workgroups

  1. If the directory c:\temp does not already exist, create it.
  2. Click on the hyperlink to download the file setupex2.exe to your c:\temp directory.
  3. After the setupex2.exe file is downloaded, use Windows Explorer to open the c:\temp directory, and then double-click on the setupex2.exe file.
    Running setupex2.exe will install Cirrus into your hard drive and create a GTE Cirrus program group.

Database Update Instructions

  1. Create a temporary directory C:\UPDATE directory on your hard drive.
    To create the temporary C:\UPDATE directory, open Windows Explorer so that it's showing the contents of your C: drive. Click on File, click on New, and click on Folder. A new folder will be created and will be highlighted. Type UPDATE and press return to name the folder.
  2. Click on the selected .exe file (see the table above) to download it to the directory C:\UPDATE.
  3. After the .exe file is downloaded into your C:\UPDATE directory, use Windows Explorer to open your C:\UPDATE directory, and then double-click on the .exe file you downloaded.
    The database files in your Cirrus directory will be updated automatically.
  4. Close the window on the C:\UPDATEdirectory. Locate the icon for the C:\UPDATE directory in the C:\ folder, and drag it to the Recycle Bin. You no longer need this folder or the any of the files in this folder.

There are quite a few new airports in this file, especially the file that contains "All Airports and Navaids," compared to the original Cirrus database. When you do a database update, it will ovewrite the following data files in the C:\cirrus\data directory:


NOTE: This update will not affect the user defined waypoints you have entered into Cirrus.

Attention! Since Airport and Navaid data changes every 56 days, loading this new information may affect the routes you have saved. Please validate all of your saved routes to ensure you are using the current navigation data in your flight routes.

If you have any problems, suggestions or comments about Cirrus please e-mail them to

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