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Project CHLOE
:''For other uses of this name or title, see Chloe (disambiguation).''
Project CHLOE is a research and development program of the Department of Homeland Security (DHS) to explore technology-based unmanned aerial vehicle (UAV) mounted defenses for airports and airliners against the threat of infrared man-portable anti-aircraft missiles. The project's name refers to the character Chloe O'Brian on the television show ''24'', which is Former Homeland Security Secretary Michael Chertoff's favorite show.〔(Hall, Mimi, "Drones could defend airports", ''USA Today'' March 23, 2007 )〕〔
==Concept==
The primary concept being explored by Project CHLOE is to have a UAV circling at above a major airport which is equipped for the dual role of detecting and defeating a heat-seeking missile launched against an airliner.〔〔 Other systems, such as the Northrop Grumman Guardian, CAMPS and Flight Guard have been developed which would be mounted on individual commercial aircraft, but such systems can cost upwards of US$1 million per plane, and airlines would prefer a more workable and affordable solution over using equipment that they have to both pay for and then maintain.〔 The program is the result of a congressional directive to the DHS to explore technology options parallel with the development of aircraft-mounted systems.〔
The proposed UAVs would have a long loiter time, up to 24 hours per flight, so that there would be a "perpetual orbit",〔 of an aircraft above an airport. The system would have all-weather capabilities〔 to scan a threat envelope of a radius around the airport, and air traffic up to an altitude of , plus standard approach and departure corridors up to from airports.〔(La Franchi, Peter, "USA plans trial of civilian aircraft Manpads protection using high-altitude UAVs", ''Flightglobal.com'' March 28, 2007 )〕〔 The system would be required to respond to a threat within three to ten seconds.〔 It would also have to be unaffected by ground clutter which could mimic the signature of a missile launch.〔 "One of these devices flying above would cover all of the commercial airports in the L.A. County area," said Admiral Jay M. Cohen, DHS' technology chief.〔(Barrie, Allison, "Eye in the Sky: New Flying Laser Will Stop Heat-Seeking Missiles" ''Fox News'' May 22, 2008 )〕
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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