Air-Speed Record
| posted by Heath RowAn experimental NASA jet dubbed the X-43A established a new world speed record when it accelerated to about 7,000 miles per hour -- 10 times the speed of sound. The jet's supersonic combustion ramjet, or scramjet, uses the bottom of a plane's body to collect and compress air. Traditional jet engines use rotating fan blades to compress air for combustion. Congratulations to all involved!
