NASA is studying a range of configuration options for its next large-scale X-plane as it awards contracts to four companies to develop system requirements for proposed ultra-efficient subsonic transport (UEST) flight demonstrators. Funding permitting, the agency plans a series of manned X-planes to follow the X-57 Maxwell distributed electric propulsion demonstrator now under construction and the Quiet Supersonic Transport (QueSST) low-boom X-plane in preliminary design at Lockheed Martin ...


"NASA Studies Subsonic X-plane Options, Costs" is part of Aviation Week & Space Technology’s subscription package. Click “subscribe now” below to view your options.  


Current Aviation Week & Space Technology magazine subscribers: simply use your subscriber email to log in to your account (or contact us for assistance in updating your account).
Current Aviation Week Intelligence Network (AWIN) enterprise and individual members: please go to for access.

Already registered? here.