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The Pyros, previously referred to as the Small Tactical Munition (STM), is a weapon developed by Raytheon, designed to be used by UAVs.〔(【引用サイトリンク】accessdate=2010-12-19 )〕〔(【引用サイトリンク】accessdate=2010-12-19 )〕〔(【引用サイトリンク】accessdate=2010-12-19 )〕 Raytheon successfully conducted flight tests in October 2010, and it may be used to arm the AAI RQ-7 Shadow.〔(【引用サイトリンク】accessdate=2010-12-19 )〕 It weighs , and originally had a warhead.〔(【引用サイトリンク】accessdate=2010-12-19 )〕 On April 18, 2011, Raytheon successfully tested a new warhead for the weapon. Though lighter, the new warhead has a significantly improved blast-fragment capability.〔(New Warhead Reduces Size of Small Tactical Munition ) - Deagel.com, April 19, 2011〕 Designed for low collateral damage, its lethal radius is only , with non-lethal effects extending further but lethality dropping dramatically.〔(Raytheon's New Collateral Damage Minimizing Munition ) - Forbes.com, 10 August 2012〕 In July 2012, Raytheon claimed the STM could be "months" away from fielding.〔(Tiny 2-Foot Missile Could Be ‘Months’ Away From Drone War ) - Wired.com, July 13, 2012〕 In early August 2012, Raytheon renamed the munition Pyros and completed the first end-to-end test of the bomb.〔(AUVSI: Raytheon completes end-to-end testing of Pyros bomb ) - Flightglobal.com, August 7, 2012〕 The test validated the weapon's guidance modes, height-of-burst sensor, electronic safe and arm device, and multi-effects warhead.〔(Raytheon Small Tactical Munition Scores Direct Hit In First Guided Flight Test ) - Reuters.com, August 7, 2012〕 On 18 July 2014, Raytheon conducted the first live-fire test of the Pyros. The munition targeted a simulated group of insurgents planting a roadside bomb and used its height-of-burst sensor to detonate several feet above the ground.〔(Tiny Guided Bomb Scores a Direct Hit on Arizona Test Range ) - Raytheon news release, 21 August 2014〕 Dropped from an altitude of , the Pyros takes 35-40 seconds to reach the ground.〔(Raytheon promotes Pyros for Middle East UAV operators ) - Flightglobal.com, 17 November 2013〕 ==References== 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「Pyros (bomb)」の詳細全文を読む スポンサード リンク
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