NASA's revolutionary X-59 jet is steadily progressing toward its first flight test after completing a set of engine run tests at the storied Lockheed Martin Skunk Works facility in California.

A try called Quesst Vid The aircraft NASA hopes will usher in a new generation of transport that's supersonic but also relatively quiet has fired up its engines for the first time as a test.… The X-59 Quiet Supersonic Technology (Quesst) airplane has been designed to generate what the agency refers to as a shaped sonic boom,