Tag Archives: scramjet

Ramjets: Making Mock of Mach

1946 ramjet test. Image courtesy NASA.

The faster you go, the less inclined the air becomes to get out of your way. This simple fact, which stood for years as an impediment to breaking the sound barrier, can also be ingeniously harnessed to create an engine capable of zipping along at supersonic speeds without the fuel weight required by rockets.

In this article, I trace the history, science and engineering behind this revolutionary “flying stovepipe,” from its theoretical birth during the biplane era to its modern military and commercial offshoots. By the time we’re done, you’ll understand…

How Ramjets Work

Hypersonic: Don’t believe the hype

Falcon program’s Hypersonic Cruise Vehicle
The DARPA Falcon Project’s Hypersonic Cruise Vehicle

Imagine a Mach-20 aircraft capable of flying coast to coast in less time than it takes a passenger to clear security; now imagine the jet lag to follow. If the idea still sounds appealing, bear in mind that the most recent attempt at such a plane flew right out of its own skin before ditching into the Pacific.

Welcome to the world of hypersonic flight.

Of course, that was a military weapons platform; contrary to what some aircraft manufacturers’ flacks would have us believe, passenger planes are likely to remain subsonic or supersonic for the foreseeable future – and for good reason.

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