First flight of the Piasecki H-25A Army Mule
Wednesday, March 31, 1948
Description
Note: Only the month and year of this milestone are known - March 31 has been chosen as an approximate but conservate date Source: "US Army Rotary Wing Training & Test Aircraft 1940s – 1960s", Paul, Fardink, AHS 2018 VTOL History Calendar - April
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