By Bill Harby Aviation nerds and even otherwise normal people who just love watching airplanes and helicopters crisscross the sky, will want to land at the Breitling Sion Airshow, 15 – 17 September 2017. That weekend the skies over Sion (Valais Canton) will be filled with jet fighters, huge helicopters, wingwalkers, historic warbirds and even […]
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