The scramjet theory was put to the test at 3:42 p.m. Saturday, when a modified B-52 took off from Edwards Air Force Base and carried the X-43A and its booster rocket to an altitude of 40,000 feet.

A jet engine is any engine that can propel an aircraft of some kind via rearward expulsion of a jet of fluid, typically a hot exhaust gas that the engine generates by drawing in fuel from the ...

at least in theory, that it almost seems too good to be true. So then why are we still struggling to develop a practical version? The problem is that a scramjet engine doesn’t actually work ...

A scramjet can therefore match rocket velocities, but unlike a rocket, it uses the air’s oxygen and so doesn’t have to carry tanks of oxidizer. The result, in theory, is a lighter (and ...

But in China, development of scramjet concepts has continued, too. Even so, lead researcher Jiang Zonglin grew frustrated with scramjets and decided to go his own way, based on a theory published ...

The heart of the 1.8-m (5.9-ft) Scramspace is a hypersonic scramjet. A standard jet engine ... that disguises some sophisticated engineering theory. In a ramjet, the air is compressed, but ...

Building a jet engine yourself likely wouldn't be very easy, but the basic principle of how a jet engine works is fairly simple. Your average jet engine uses a series of fans to inhale air.

Will DeVerter, a graduate research assistant in the Purdue Applied Research Institute’s Hypersonics Advanced Manufacturing Technology Center (HAMTC), prepares his team’s 3D printed scramjet for ...