It’s also been designated as the X-66A within US aviation circles. In development since 2010, the concept involves a plane with an ultra-thin, high aspect ratio wing, supported by a truss ...

There are three active X-plane programs at NASA, including the new X-66A. Here's where each one stands. By Rob Verger. ... The trusses it will have are visible beneath the wings.

As a subsonic concept cruising at around Mach 0.70 to 0.75 (519 to 556 mph, 835 to 895 km/h), Boeing estimated these braced-wing airliners could burn 50% less fuel than a regular plane.

The new X-plane seeks to enable a potential new generation of more sustainable single-aisle aircraft – the workhorse of passenger airlines around the world. Working with NASA, Boeing will build, test, ...

This design, known as transonic truss-braced wing (TTBW), could in theory allow the plane to generate more lift, thus reducing the amount of fuel it needs for certain portions of the flight.

I'm talking about something called the transonic truss-braced wing (TTBW). It's a design that doesn't stray all that much from the current way of making a plane's main wings, but does make them ...

If widely adopted, the truss-winged design could transform sustainable air travel as we know it. The new X-66A is also the first X-plane designed specifically to achieve the goal of net-zero ...

In the case of the X-66A, the X-plane status recognizes the design's Transonic Truss-Braced Wing configuration that, in combination with advancements in propulsion systems, and materials, could ...

In short order Boeing will begin modifications to a McDonnell Douglas MD-90 to test the Transonic Truss-Braced Wing (TTBW) configuration as part of NASA’s Sustainable Flight Demonstrator project.