Lt. Col. John Lesho, right, receives the 339th Flight Test Squadron guidon from Col. Christopher Zidek, 413th Flight Test Group commander, during a change of commander ceremony Sep. 21, 2018, at the Museum of Aviation, Warner Robins, Ga. By accepting the guidon, Lesho officially became the commander of the 339th FLTS.

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Photo credit: © David Wa / Alamy / Afripics
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