DARPA has awarded Aurora Flight Sciences a phase 2 contract for its CRANE (Control of Revolutionary Aircraft with Novel Effectors) program, following wind tunnel testing of a small-scale X-plane that ...

Learning the basics can ease loop tuning frustration and ensure stability. During plant operations, it seems that tuning control loops is an ongoing task, which can be a continual frustration to ...

Aurora Flight Sciences is quietly turning a radical research sketch into metal, bolting on 30 ft wings that will help prove whether a jet can steer with air instead of moving parts. The X-65, built ...

Compressible fluid flow through control valves will inevitably cause some form of flow-induced vibration in the fluid system. Identifying the type and cause of the vibration requires detective work.

Moving thousands of tons of coal per hour at high speeds through a complex handling system is a main cause of airborne coal dust in a coal-fired plant. Depending upon the coal’s characteristics, that ...