🚀 Turbojet, Ramjet, Scramjet – How We Push the Speed Limits in Aviation ✈️ Ever wondered how engineers make aircraft go faster and faster? It all comes down to the engine: Turbojet: Uses compressors and turbines to pressurize incoming air. Combustion happens at subsonic speeds. Works well across many speeds but struggles at extreme velocities. Ramjet: No moving compressors. The aircraft’s speed and shock waves slow air to subsonic speeds for stable combustion. Efficient above Mach 3, but can’t

The X-43A was a tiny unmanned test aircraft designed by NASA to do one thing: go absurdly fast. It was part of the Hyper-X program, built to prove that a scramjet could work in real flight rather than just in a wind tunnel. To get it into the thin upper atmosphere, the X-43A wasn’t launched from a runway. A B-52 carried it to altitude, then a Pegasus booster rocket fired and pushed it to several thousand miles per hour. Only after the booster fell away did the X-43A ignite its own engine. That e