X-Plane and UDP

January 2003
The UDP aspects of X-Plane continue to evolve. With the release of X-Plane 6.51 there are now even more data items available, and remember that ALL UDP data is now read/write - meaning you can send ANY of the data items back to X-Plane. Obviously there are some items you'd never wish to override, and for some fundamental items, X-Plane will ignore your values and continue to calculate its own.

Big news for developers is the first release of the plug-in system to which we owe Ben Supnik and Sandy Barbour major thanks! The plug-in system will permit access to a great many more X-Plane variables and provide for much more control over the simulation. In time, the plug-in system will provide us with a variety of new network data streams from X-Plane which can be tailored to best suit developers needs. Keep up to date with plug-in developments at http://www.aviate.org/xpsdk

Important note for developers: the X-Plane UDP buffer size is now 2100 bytes.

Read this First!
o Introduction/Overview
Reference:
o UDP Packet Types & Formats.
o UDP Data Available.
Hardware:
o Twisted Network Cable - Pin Connections.
Source Code:
o Delphi - Send/Receive, USEL, DSEL.
o Delphi - MESS demo.
o C-Builder Demo Program.
Downloads:
o A Flight Data Recorder Program.
o X-Panel - a freeware UDP driven instrument panel.
o Billy Verreynne's UDP Analyser. (279KB Download)
o X-Plane UDP Packet Examiner. (200KB Download)
o X-Plane UDP Packet sending experimenter. (200KB Download)

Got a question? Mail me! roy@x-plane.info

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Last Modified: January 16th, 2003