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The General Atomics MQ-1 Predator is an unmanned aerial vehicle (UAV) built by General Atomics and used primarily by the United States Air Force (USAF) and Central Intelligence Agency (CIA). Initially conceived in the early 1990s for aerial reconnaissance and forward observation roles, the Predator carries cameras and other sensors but has been modified and upgraded to carry and fire two AGM-114 Hellfire missiles or other munitions (Unmanned combat aerial vehicle). The aircraft, in use since 1995, has seen combat over Afghanistan, Pakistan, Bosnia, Serbia, Iraq, Yemen, Libya, Syria, and Somalia. The USAF describes the Predator as a "Tier II" MALE UAS (medium-altitude, long-endurance unmanned aircraft system). The UAS consists of four aircraft or "air vehicles" with sensors, a ground control station (GCS), and a primary satellite link communication suite.〔 Powered by a Rotax engine and driven by a propeller, the air vehicle can fly up to to a target, loiter overhead for 14 hours, then return to its base. Following 2001, the RQ-1 Predator became the primary unmanned aircraft used for offensive operations by the USAF and the CIA in Afghanistan and the Pakistani tribal areas; it has also been deployed elsewhere. Because offensive uses of the Predator are classified, U.S. military officials have reported an appreciation for the intelligence and reconnaissance-gathering abilities of UAVs but declined to publicly discuss their offensive use.〔 Civilian applications have included border enforcement and scientific studies, and to monitor wind direction and other characteristics of large forest fires (such as the one that was used by the California Air National Guard in the August 2013 Rim Fire).〔 ==Development== The Central Intelligence Agency (CIA) and the Pentagon began experimenting with unmanned reconnaissance aircraft (drones) in the early 1980s. The CIA preferred small, lightweight, unobtrusive drones, in contrast to the United States Air Force (USAF). In the early 1990s, the CIA became interested in the "Amber", a drone developed by Leading Systems, Inc.〔 The company's owner, Abraham Karem, was the former chief designer for the Israeli Air Force, and had emigrated to the U.S. in the late 1970s. Karem's company had since gone bankrupt and been bought up by a U.S. defense contractor, from whom the CIA secretly bought five drones (now called the "GNAT"). Karem agreed to produce a quiet engine for the vehicle, which had until then sounded like "a lawnmower in the sky". The new development became known as the "Predator".〔〔 General Atomics Aeronautical Systems (GA) was awarded a contract to develop the Predator in January 1994, and the initial Advanced Concept Technology Demonstration (ACTD) phase lasted from January 1994 to June 1996. First flight took place on 3 July 1994 at the El Mirage airfield in the Mojave Desert. The aircraft itself was a derivative of the GA Gnat 750. During the ACTD phase, three systems were purchased from GA, comprising twelve aircraft and three ground control stations.〔 From April through May 1995, the Predator ACTD aircraft were flown as a part of the Roving Sands 1995 exercises in the U.S. The exercise operations were successful, and this led to the decision to deploy the system to the Balkans later in the summer of 1995.〔 During the ACTD, Predators were operated by a combined Army/Navy team managed by the Navy's Joint Program Office for Unmanned Aerial Vehicles (JPO-UAV) and first deployed to Gjader, Albania, for operations in the Former Yugoslavia in spring 1995.〔 By the start of the United States Afghan campaign in 2001, the USAF had acquired 60 Predators, and said it had lost 20 of them in action. Few if any of the losses were from enemy action, the worst problem apparently being foul weather, particularly icy conditions. Some critics within the Pentagon saw the high loss rate as a sign of poor operational procedures. In response to the losses caused by cold weather conditions, a few of the later USAF Predators were fitted with de-icing systems, along with an uprated turbocharged engine and improved avionics. This improved "Block 1" version was referred to as the "RQ-1B", or the "MQ-1B" if it carried munitions; the corresponding air vehicle designation was "RQ-1L" or "MQ-1L". The Predator system was initially designated the RQ-1 Predator. The "R" is the United States Department of Defense designation for reconnaissance and the "Q" refers to an unmanned aircraft system.〔 The "1" describes it as being the first of a series of aircraft systems built for unmanned reconnaissance. Pre-production systems were designated as RQ-1A, while the RQ-1B (not to be confused with the RQ-1 Predator B, which became the MQ-9 Reaper) denotes the baseline production configuration. These are designations of the ''system'' as a unit. The actual aircraft themselves were designated RQ-1K for pre-production models, and RQ-1L for production models.〔 In 2002, the USAF officially changed the designation to MQ-1 ("M" for multi-role) to reflect its growing use as an armed aircraft.〔 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「General Atomics MQ-1 Predator」の詳細全文を読む スポンサード リンク
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