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The RQ-7 Shadow unmanned aerial vehicle (UAV) is used by the United States Army, Marine Corps, Australian Army and Swedish Army for reconnaissance, surveillance, target acquisition and battle damage assessment. Launched from a trailer-mounted pneumatic catapult, it is recovered with the aid of arresting gear similar to jets on an aircraft carrier. Its gimbal-mounted, digitally stabilized, liquid nitrogen-cooled electro-optical/infrared (EO/IR) camera relays video in real time via a C-band line-of-sight data link to the ground control station (GCS). In the US, the Army's 2nd Battalion, 13th Aviation Regiment at Fort Huachuca, AZ, trains soldiers, Marines, and civilians in the operation and maintenance of the Shadow UAV. ==Design== The RQ-7 Shadow 200 unmanned aerial vehicle is of a high-wing, constant chord pusher configuration with a twin-tailboom empennage and an inverted v-tail elerudder. The aircraft is powered by a AR741-1101 Wankel engine designed and manufactured by UAV Engines Ltd in the United Kingdom.〔(【引用サイトリンク】publisher=UAV Engines Ltd. )〕〔US Army Technical Manual 9-5895-YYY-10 Shadow 200 TUAV System, 22 October 2004.〕 Onboard electrical systems are powered by a GEC/Plessey 28 volt, direct current, 2,000 W generator.〔〔 Currently, the primary payload for the aircraft is the Israeli Aircraft Industries POP300 Plug-in Optical Payload which consists of a forward-looking infrared camera, a daytime TV camera with a selectable near-infrared filter and a laser pointer.〔〔(【引用サイトリンク】title=Pop Family )〕 The aircraft has fixed tricycle landing gear. Takeoffs are assisted by a trailer-mounted pneumatic launcher which can accelerate the 375 pound aircraft to in .〔 Landings are guided by a Tactical Automatic Landing System, developed by the Sierra Nevada Corporation, which consists of a ground-based micro-millimeter wavelength radar and a transponder carried on the aircraft.〔〔(Sierra Nevada Corporation Web Site )〕 Once on the ground, a tailhook mounted on the aircraft catches an arresting wire connected to two disk brake drums which can stop the aircraft in less than .〔 The aircraft is part of a larger system which currently uses the M1152-series of Humvees for ground transport of all ground and air equipment. A Shadow 200 system consists of four aircraft, three of which are transported in the Air Vehicle Transporter (AVT). The fourth is transported in a specially designed storage container to be used as a spare. The AVT also tows the launcher. The AVT Support Vehicle and trailer contain extra equipment to launch and recover the aircraft, such as the Tactical Automatic Landing System. Maintenance equipment for the aircraft is stored in the Maintenance Section Multifunctional (MSM) vehicle and trailer as well as the M1165 MSM Support Vehicle and its associated trailer. Two Humvee-mounted Ground Control Stations (GCS), also part of the Shadow 200 system, control the aircraft in flight. Each station has an associated Ground Data Terminal (GDT), which takes commands generated by the GCS and modulates them into radio waves received by the aircraft in flight. The GDT receives video imagery from the payload, as well as telemetry from the aircraft, and sends this information to the GCS. A trailer, towed by the M1165 GCS support vehicle, carries the GDT and houses a 10 kW Tactical Quiet Generator to provide power for its associated GCS. The Shadow 200 system also includes a Portable Ground Control Station (PGCS) and Portable Ground Data Terminal (PGDT), which are stripped-down versions of the GCS and GDT designed as a backup to the two GCSs.〔 A fielded Shadow 200 system requires 22 soldiers to operate it. Army modelling indicates that crew workload is highest at takeoff, and second-highest at landing.〔Hunn & Heuckeroth. (A Shadow Unmanned Aerial Vehicle (UAV) Improved Performance Research Integration Tool (IMPRINT) Model Supporting Future Combat Systems ) pp12+14 ''Army Research Laboratory'', February 2006. Retrieved 26 November 2011.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「AAI RQ-7 Shadow」の詳細全文を読む スポンサード リンク
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