Aircraft program
X-plane specifically aimed at helping the United States achieve the goal of net-zero greenhouse gas emissions by 2050 for the Sustainable Flight Demonstrator program. Long, thin wings with engines mounted underneath and set of aerodynamic trusses. Development indefinitely paused.
The aircraft as engineered: what it is built from, the systems it flies with, and its configuration — each box a theme.
Notable technologies — each tag names a technology on our research record for this aircraft, with its fitting status: Primary, Standard, Option or Planned.
+ 1 technology researched and confirmed absent from this program.
Technical reference compiled with AI research; a value appears only where two independent research passes and a web fact-check agree. Gaps are deliberate.
Supplier geography and market analysis for this program — with an Analytics subscription.
Subscribe| Variant | Launch / first flight | Production end | Notes |
|---|---|---|---|
| Boeing X-66A | / | Experimental airliner under development by Boeing in collaboration with NASA and its Sustainable Flight Demonstrator. |
| Boeing Commercial Airplanes | News |
The program’s dated history — milestones, contracts, supplier selections and facilities, each linked to its source. Log in to view.
Information on this page is compiled from a variety of published sources; links do not necessarily imply recommendation or confirmation by the airframe manufacturer.
Corrections go straight to the editorial team that maintains this directory.