Chicago sample data: some airport mapping data and airspaces around the O'Hare Intl Airport - Chicago. Please keep in mind that this data is for demo purposes only, not to be used for operations.
Airspace sample data: a fictitious airspace demonstrating geoborder, air space aggregations, and procedures.
AIXM wiki: Additional AIXM 5.1 sample data is available through the AIXM Wiki.
To load the data, drag the unzipped files to the viewer or click the "Data - Open..." menu option in the viewer.