PteroDynamics said its aircraft, called Transwing, folds and unfolds its wings during flight to achieve different wing configurations, resulting in a smaller ground footprint and more effective ...

A separate Navy contract for its version of the NGAD fighter is still under competition between Northrop Grumman and Boeing.

and folding inward at supersonic speed. The benefits of variable-sweep wings are roughly what you’d expect: they give a plane greater variety. Several prominent military aircraft have ...