leGPSBip and Chrigel Maurer are in the latest free.aero

D-10 before the beginning of the Red Bull X-Alps 2017 edition !

Is Chrigel on his way to his fifth victory of the toughest hike & fly competition ?

Here is an article on free.aero (available in English, French, German, Italian) about Chrigel Maurer’s preparation for the race, equiped with his backup solar vocal alti-vario tracker : leGPSBip.