Ahead of the Curve: Novel morphing wing may reduce aircraft’s fuel use

Airplane designers have long admired how birds reshape their wings for soaring, diving, and maneuvering. Now, a prototype aircraft wing has demonstrated in its first flight tests that its morphing might save fuel.

HANGING OUT. A silver-colored wing prototype, mounted vertically beneath a jet, has a morphing trailing edge. Its developers completed flight tests of the novel wing last week.