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Insectothopter : ウィキペディア英語版 | Insectothopter
The Insectothopter was a miniature unmanned aerial vehicle developed by the United States Central Intelligence Agency's research and development office in the 1970s. The Insectothopter was the size of a dragonfly, and was hand-painted to look like one. It was powered by a miniature fluidic oscillator to propel the wings up and down at the proper rate to provide both lift and thrust. A small amount of propellant produced gas to drive the oscillator, and extra thrust came from the excess gas vented out the rear.〔 https://www.cia.gov/library/video-center/video-transcripts/insectothopter-the-bug-carrying-bug.html 〕 The project was abandoned when the Insectothopter was found to be too difficult to control in crosswinds.〔Shrader, Katherine: (New Agency IARPA Develops Spy Tools ), ''The Washington Post'', May 31, 2007.〕 ==See also==
*Ornithopter
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