The Falconer was similar in appearance to the Shelduck, but had a slightly longer and stockier fuselage. It had an autopilot system with radio-control backup, and could carry cameras, as well as illumination flares for night reconnaissance. Equipment was loaded through a hump in the back between the wings. Although it only had an endurance of a little more than a half-hour, making it of limited use, about 1,500 Falconers were built and the type was used internationally with several different military forces, remaining in service into the 1970s. Over 73,000 BTT targets were built in all, and the type was used by at least 18 nations. Some may still be lingering in service. Operators British Army Surviving aircraft Australia N10-53152 – KD2R-5 on display at the South Australian Aviation Museum in Port Adelaide, South Australia. Netherlands KL-110 – KD2R-5 on display at the Nationaal Militair Museum in Soesterberg, Utrecht. Sweden On display at the Kolmårdens Djurpark outside of Norrköping, Östergötland. United Kingdom XR346/XV383/XW578 – D.1 on display at the Bournemouth Aviation Museum in Hurn, Dorset. XT581 – SD-1 on display at the Imperial War Museum Duxford in Duxford, Cambridgeshire. It was given to the museum in 1978 by the British Army and was restored in the 1990s. United States KD2R on display at the Aviation Unmanned Vehicle Museum in Caddo Mills, Texas. It includes the complete communications hardware. KD2R-5 on display at the Western Museum of Flight in Torrance, California. MQM-33 on display at the Estrella Warbirds Museum in Paso Robles, California. MQM-33 on display at the U.S. Veterans Memorial Museum in Huntsville, Alabama. MQM-33 on display at the Canadian Museum of Flight in Langley, British Columbia. MQM-57 on display at the National Museum of the United States Air Force in Dayton, Ohio. OQ-19 fuselage in storage at the National Air and Space Museum in Washington, D.C. OQ-19 on display at the National Model Airplane Museum in Muncie, Indiana. OQ-19A on display at the Air Victory Museum in Lumberton, New Jersey. OQ-19B on display at the Alaska Aviation Museum in Anchorage, Alaska. OQ-19D on display at the National Museum of the United States Air Force in Dayton, Ohio. OQ-19D on display at the Alaska Veterans Museum in Anchorage, Alaska. OQ-19D on display at the Pima Air & Space Museum in Tucson, Arizona. OQ-19D on display at the Minnesota Wing of the Commemorative Air Force in South St. Paul, Minnesota.