Unlike most home jet engine builds, this one doesn’t use a turbocharger or go with a simpler pulse jet design – though [Integza] has built those, too. This is a proper radial-flow turbojet design.

There are a lot of different aircraft, and they all use a variety of engines from different engine manufacturers. Two of the more commonly used engines are turbofan and turbojet engines.

The air-breathing monster behind the powerful SR-71 is a Pratt & Whitney J58 turbojet engine, which maxes out at speeds around Mach 3. In Hermeus’s hypersonic design, a ramjet, which can only ...

Today, we’re aware of at least three American-based efforts to develop and field such an engine. Hermeus’s Chimera is a turbojet/ramjet design, though the firm has plans to field a larger and ...