icqa Posted February 14, 2008 Report Share Posted February 14, 2008 Frank Nicolas Piasecki, an aviation pioneer who invented the twin-rotor technology that led to development of the widely flown Chinook heavy-lift helicopter, has died. He was 88. http://www.latimes.com/news/obituaries/la-...story?track=rss Quote Link to comment Share on other sites More sharing options...
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