Lockheed AQM 60 Kingfisher

The AQM-60 Kingfisher, originally designated XQ-5, was a target drone version of the USAF's X-7 test aircraft built by the Lockheed Corporation. The aircraft was designed by Kelly Johnson, the designer who later went on to create the Lockheed SR-71 Blackbird and its relatives, such as the Lockheed A-12 and Lockheed YF-12.

The X-7's development began in 1946 after a request from the USAF for a Mach 3 unmanned aerial vehicle for test purposes. This unmanned test craft eventually evolved into the Kingfisher when the need arose for a target to test anti-missile systems such as the MIM-3 Nike Ajax, SAM-A-25/MIM-14 Nike Hercules, and IM-99/CIM-10.

The Kingfisher was capable of evading the vast majority of weapons systems it was used to test, despite the systems being designed to destroy hypersonic missiles in flight. This created a significant amount of embarrassment at the USAF, resulting in considerable political fallout, which led to the eventual discontinuation of production in 1959 and the cancellation of the project entirely in the mid-1960s.