Boeing builds experimental aircraft to test the limits of the jet and collect data on new technologies — particularly the 777X's folding wingtips. A closeup of the plane's folded wingtips.

Boeing's newest widebody aircraft, the 777X, is the world's largest twin-engine plane in production. The jet is expected to enter service in 2025, though the timeline is years behind schedule. I ...

Boeing's newest widebody aircraft, the 777X, is the world's largest twin-engine plane in production. The jet is expected to enter service in 2025, though the timeline is years behind schedule. I ...

If you saw Top Gun, then you saw the F-14 Tomcat and likely wonder if its wings really fold like that. The answer is yes, but the reason may surprise you.

Three decades later, variable-sweep wings became the distinguishing feature of a new aircraft to be flown by both the U.S. Air Force and Navy, the General Dynamics F-111 Aardvark fighter-bomber.

If we put an aircraft into service that has really long wings and then it can’t fit into those airport gates, that’s just not practical. “We cannot expect the whole world to adapt its airports.

Boeing and NASA will pause work on the X-66 Sustainable Flight Demonstrator, an experimental plane design featuring long, thin wings meant to make the plane more fuel efficient.

The experimental XB-1 aircraft, made by US company Boom Supersonic, flew faster than the speed of sound on 28 January. The achievement is the first time any civil aircraft has gone supersonic over ...

Boeing's newest widebody aircraft, the 777X, is the world's largest twin-engine plane in production. The jet is expected to enter service in 2025, though the timeline is years behind schedule. I ...

If you saw Top Gun, then you saw the F-14 Tomcat and likely wonder if its wings really fold like that. The answer is yes, but the reason may surprise you.