https://www.prnewswire.com/news-releases/team-gamera-ii-sets-unofficial-world-record-for-human-powered-helicopter-flight-duration-at-50-seconds--a-400-percent-improvement-on-their-earlier-record-160121295.html
/PRNewswire-USNewswire/ -- Students from the University of Maryland's A. James Clark School of Engineering set an unofficial world record of 50 seconds for...
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