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Japan tests Mach 5 engine for two-hour Tokyo-LA flights

Japan successfully tests Mach 5 ramjet engine that could cut Tokyo-LA flights from 12 hours to 2 hours, with passenger ...
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The Lockheed X-7: Mach 4 Ramjet

In the years following World War II, the American aviation industry and the military anticipated revolutionary changes in flight. The war had been fought largely with aircraft powered by reciprocating ...
American Machinist

GE, Lockheed Test New Hypersonic Engine

The rotating detonation ramjet engine provides a more compact, lightweight design than standard engine designs, and uses a continuous, self-sustaining detonation wave. GE Aerospace and Lockheed Martin ...

What China is building for its future fighters sounds almost unreal: one engine from takeoff to hypersonic flight, with no handoff in between

A Chinese lab tests a next-generation engine designed to push aircraft from takeoff to hypersonic speeds in one system.