Mansfield Kaserne, Straubing, early 1960s (Source: Mike Dolan) AN/USD-1 FALCONER surveillance drone - Series production of the AN/USD-1 for the U.S. Army started in 1959. In June 1963, the USD-1 drone was redesignated as MQM-57. The MQM-57 remained in service until the mid-1970s.