21.06.2019, News, USA
SHIFTING GEARS
Webinar: "Risk Strategies for Cross-Country Thermal Soaring" [ssa.org]
Quelle: Christian (DD)
21.06.2019, News, USA
SHIFTING GEARS
Webinar: "Risk Strategies for Cross-Country Thermal Soaring" [ssa.org]
Quelle: Christian (DD)