During the interwar period, the development and testing of drones continued. In 1935, the British produced several radio-controlled aircraft for use as targets for training purposes. It is believed that the term “drone” began to be used around this time, inspired by the name of one of these models, the DH, 82B Queen Bee. Radio-controlled drones were also manufactured in the United States and were used for shooting and training.
An unmanned aerial vehicle (UAV), commonly known as a drone, is an aircraft without any human pilot, crew, or passengers on board. Unmanned aerial vehicles are a component of an unmanned aircraft system (UAS), which includes the addition of a ground controller and a communications system with the UAV. The flight of unmanned aerial vehicles can operate under the remote control of a human operator, such as remotely piloted aircraft (RPA), or with varying degrees of autonomy, such as autopilot assistance, up to fully autonomous aircraft that do not have human intervention. After founding his company, Denny manufactured target drones for the military and was responsible for numerous innovations in drone technology.
When Northrop Corporation bought the company in 1952, Denny's had produced nearly 70,000 target drones for the United States military. Later, the Americans reverse-engineered the technology, who developed their own unmanned aerial drones powered by Pulsejet, such as the TD2D-1 Katydid and the Curtiss KD2C. Drone advocates would prefer everyone to use the term “UAV”, for unmanned aerial vehicle, or “UAS”, for unmanned aerial system (system) to encompass the entirety of the vehicle that flies, the ground controller and the communications connection that connects them). Called Ruston Proctor Aerial Target, these pilotless military drones used a radio guidance system developed by British engineer Archibald Low.