Mach Mania: The 10 Fastest Jets in the World

Page 9 of 10

No. 2 X-43A Scramjet

Speed: 7,000 mph

Number two on the list is NASA’s X-43A Scramjet, an aircraft which crosses the barrier of sound. Furthermore, its engine called scramjet (supersonic-combustion-ramjet), which doesn’t rely on oxygen, allows the plane to achieve its top speed of 7,000 mph in about 10 seconds.

Page 9 of 10