In a windswept corner of a military site on Salisbury Plain a small aircraft jet engine is undergoing tests ... it sits securely fastened to a sturdy test rig, while engineers cluster around ...

Cue the development of the 3D printed water jet engine (YouTube link ... After sourcing a series of larger tubs in which to test the device, the engine is finally run up to full throttle and ...

Starting on Oct. 30, engineers with NASA's X-59 Quesst program (Quiet SuperSonic Technology) have been conducting test runs of the jet's engines at the storied Lockheed Martin Skunk Works facility ...