What are Ceramic Matrix Composites? Composite materials typically consist of two components: a reinforcement part to provide mechanical strength and a matrix material that holds all the components ...

Small, ultra-fast, primary and “afterburner” secondary combustion events promise to deliver brake thermal efficiency as high as 69 percent. A better mousetrap? Even now, as electrification seems ...

In the years immediately following the Second World War, jet propulsion wrought rapid changes in combat aircraft design. Jet engines promised to push aircraft beyond any speed possible with propeller ...

(Image: Concept image of Lockheed Martin's planned SR-72 hypersonic strike aircraft to serve as a replacement for the SR-71 Blackbird.) It is not yet clear what aircraft DARPA has in mind for the new ...