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Formation flight over ZRH en route to near by Dübendorf Airfield. From left to right are HB-HOS, HB-HOT, HB-HOP and HB-HOY.
This photo is copyright © Rolf Wallner, and may not be used or published in any way without permission.
It was added on 16 December 2023, and has since been viewed 194 times.