视频加载中...
视频加载失败，请稍后重试或选择其他线路
<p>DocumentaryaboutthedevelopmentoftheBoeing747jumbojet.The747wasagamechanger;theairlinerthatrevolutionisedmass,cheapairtravel.Butthefirst,wide-bodiedplanewas(originally)intendedasastopgaptoBoeing’snow-abandonedsupersonicjet.Thisistheremarkable,untoldstoryofthejumbo,abillion-dollargamblethatpushed1960stechnologytothelimitstocreatetheworld’smostrecognisableplane.</p>