I photographed this Kreider-Reisner Challenger C-2 (Fairchild KR-31) at the Yanks Air Museum in Chino, Calif., and the Western Antique Aeroplane and Automobile Museum (WAAAM) in Hood River, Oregon.

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Challenger C-2

Yanks Air Museum, Chino 2018

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1929 Kreider-Reisner Challenger C-2 (Fairchild KR-31)

WAAAM, Hood River 2021