THE RAMJET as a Supersonic Propulsion Plant 480228
THE ramjet excels all other powerplants for sustained propulsion at supersonic speeds. Ramjets feature high power per unit frontal area and per unit weight and high specific impulse.
In compensation for mechanical simplicity, the ramjet presents a number of aerodynamic and thermodynamic problems. Because supplying air-streams for studying these problems with full-scale models would require enormous amounts of power, their solution must be found through improved understanding of the fundamentals of the process.