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'Morphing' winglets make for greener aircraft

作者:司空堋    发布时间:2019-03-09 08:18:09    

By Paul Marks AIRLINE passengers gazing out of their cabin windows could soon be met with an unfamiliar sight – their aircraft’s wing tips changing shape mid-flight. That is because aircraft makers Boeing and Airbus are developing moveable winglets – the fins at the end of a wing – in a bid to build greener, quieter planes. The US military has been exploring morphing wings for its uncrewed aircraft for five years. In such planes, a long, high-lift wing useful for loitering can quickly be transformed into a sharp delta wing to dive towards a target,

 

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