... the open-source glide computer

XCSoar is a tactical glide computer originally developed for the Pocket PC platform. In 2005, the originally commercial software was given to the open-source community for further development and has constantly been improved since. It is now a multi-platform application that currently runs on Windows, Windows Mobile, Unix and even Android devices.

Download XCSoar

Download Manual

XCSoar 6.6.1 released
( 8. May 2013 by max)

The first maintenance release of XCSoar 6.6 fixes the following bugs:

various timing problems with IOIO
K6Bt baud rate bug fixed
polar configuration fixed
and a few minor bugs

Changelog:

http://download.xcsoar.org/releases/6.6.1/NEWS.txt

Download:

http://www.xcsoar.org/download/
http://download.xcsoar.org/releases/6.6.1/
https://market.android.com/details?id=org.xcsoar

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Screenshots

Highlights of XCSoar's interface

Moving Map

Moving Map
The primary display, easily configurable to provide the desired level of detail.

Terrain Display

Terrain Display
Terrain and Topology data from all over the world can be displayed on the moving map.

FLARM Integration

FLARM Integration
All received FLARM traffic is displayed on the map and on the inset radar screen. (including climb speed)