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Sentry
S-TEC · Reconnaissance · United States · Cold War (1970–1991)
The S-TEC Sentry is a reconnaissance unmanned aerial vehicle (UAV), developed in the United States in the 1980s. Built by S-TEC systems of Texas, it is a battlefield mini-UAV in roughly the same class as the BAI Dragon drone. In fact, the Sentry looks something like an Exdrone with a twin-boom raised tail. It is built of carbon composition and Kevlar, and powered by a 19.5 kW (26 hp) piston engine in a tractor configuration.