The first example of an unmanned aircraft is more than a century old: it was studied in 1916, during the First World War, by the British Royal Air Force, and was called Aerial Target.
It was a 20-foot-long monoplane with a 2-cylinder air-cooled engine, devised by Captain Archibald M. Low.
It should have had a double function: that of countering German airships and that of playing the role of an aerial bomb controlled by a piloted aircraft.
It was to be radio driven and 6 prototypes were produced. They all took flight in experimental actions that ended disastrously and the project was shelved.
The outbreak of World War II led to the production of radio-guided unmanned aircraft: these were the RP-1 Radioplane Company models used by the US Artillery as moving targets for exercises.