The goal of the aerokurier Online Contest (OLC) is to record cross-country glider flights, free from the conventions of flight declarations, in order to make decentralized performance comparisons easier. In so doing it is hoped to improve the scope of cross-country flights.

IGC-approved GNSS Flight Recorders are be used exclusively for documentation. Motor-gliders document soaring flight by recording of the Engine Noise Level (ENL) system built in to these recorders. Official observers are not required. Click the link above for all the rules.