Read more Zephyr stories on Newserhttp://www.newser.com/taggrid/12169/zephyr.htmlhttp://img1-cdn.newser.com/images/newser-black250x40.gifhttp://www.newser.com/2012 - Newseren-usNewser Feed GeneratorMon, 21 May 2012 09:17:57 CDThttp://www.newser.com/story/7262/solar-plane-beats-world-record.htmlCaroline Zimmerman<img src='http://img2-cdn.newser.com/getimage.aspx?mediaid=25903&width=45&height=45&crop=Y&updateddate=20110401032242' border='0' />A lightweight, solar-powered plane has broken the world record for the longest unmanned flight by a whole day. The Zephyr, built by a British security firm, flew for 54 hours during a test flight, beating the US Air Force's record for a similar vehicle by 24 hours. But it's not..."This aeroplane is going to go a lot higher and a lot further," Chris Kelleher, Zephyr's technical director and "pilot", told reporters. "You ain't seen nothing yet."http://www.newser.com/story/7262/solar-plane-beats-world-record.htmlMon, 10 Sep 2007 11:23:18 CDT