Supersonic X-plane Takes Next Step

----
Supersonic X-plane Takes Next Step // Aviation Week
http://aviationweek.com/awindefense/supersonic-x-plane-takes-next-step

NASA has issued a draft request for proposals for development of its Quiet Supersonic Transport low-boom flight demonstrator, starting the clock ticking toward first flight of the new X-plane in early 2021.

read more


----

Read in my feedly.com