
In the wings: Dutch airline KLM has agreed to find development of V-shaped aircraft known as the Flying-V, which incorporates the passenger cabin, fuel tanks and cargo hold into the wings.

Aerial efficiency: It's claimed the plane will use 20% less fuel than the Airbus A350-900 while carrying a similar number of passengers -- just over 300.

Better by design: The plane's increased fuel efficiency is largely a result of its aerodynamic design, its creators say, although its reduced weight also contributes.

Testing times: Researchers hope to fly a scale model of the airplane in September and say it could be ready to enter service between 2040 and 2050.


