article_snippet.sent: a flexible wing is able to morph a flexible wing like that of a bird to provide the same functionality as normal flaps, but with much less weight.
article_snippet.sent: a flexible wing can also reportedly be used to increase fuel efficiency and even reduce noise on take-off and landing.
article_snippet.sent: Nasa has been testing a flexible wing on a plane in California (shown).
article_snippet.sent: a flexible wing can bend from -2
article_snippet.sent: a flexible wing means that regular flaps aren't needed - and a flexible wing is much lighter.
article_snippet.sent: a flexible wing is able to ‘bend’ through angles from -2 degrees up to 30 degrees.
article_snippet.sent: Test pilots have described a flexible wing as being ‘very smooth’, while a flexible wing can also deal with hard banking manoeuvres and extreme temperatures.
article_snippet.sent: For all the flights so far, a flexible wing has flown in a fixed position on a Gulfstream III jet between these two extremes, to ensure risk is minimal.
article_snippet.sent: But for future flights, the wings will be able to change angles while in the air.
article_snippet.sent: a flexible wing is shown above bending through a flexible wing two extremes. 
highlights_snippet.sent: Nasa has been testing a flexible wing on a plane in California .
  
highlights_snippet.sent: a flexible wing can bend from -2