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Interstate TDR
The Interstate TDR was an early unmanned combat aerial vehicle — referred to at the time as an "assault drone" — developed by the Interstate Aircraft and Engineering Corporation during the Second World War for use by the United States Navy. Capable of being armed with bombs or torpedoes, 2000 aircraft were ordered, but only around 200 were built. The type saw some service in the Pacific Theater against the Japanese, but continuing developmental issues affecting the aircraft, along with the success of operations using more conventional weapons, led to the decision being made to cancel the assault drone program in October 1944.
==Design and development==
In 1936, Lieutenant Commander Delmar S. Fahrney proposed that unpiloted, remotely controlled aircraft had potential for use by the United States Navy in combat operations.〔 Due to the limitations of the technology of the time, development of the "assault drone" project was given a low priority, but by the early 1940s the development of the radar altimeter and television made the project more feasible,〔 and following trials using converted manned aircraft, the first operational test of a drone against a naval target was conducted in April 1942.〔 That same month, following trials of the Naval Aircraft Factory TDN assault drone, Interstate Aircraft received a contract from the Navy for two prototype and 100 production aircraft to a simplified and improved design, to be designated TDR-1.〔
Control of the TDR-1 would be conducted from either a control aircraft, usually a TBF Avenger, with the operator viewing a tv screen showing the view from a camera mounted aboard the drone, and with the radar altimeter's readout also displayed.〔 Powered by two Lycoming O-435 engines of each, the TDR-1 used a remarkably simple design, with a steel-tube frame constructed by the Schwinn bicycle company covered with a molded wood skin,〔Goebel 2010〕 thus making little use of strategic materials so as not to impede production of higher priority aircraft.〔 Capable of being optionally piloted for test flights, an aerodynamic fairing was used to cover the cockpit area during operational missions.〔 The TDR-1 was equipped with a fixed tricycle landing gear, that on operations would be jettisoned following takeoff for improved performance.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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