Lockheed Martin SR-72

Aircraft Engines Part 2: The Jet Age

In the 1920s an RAF cadet by the name of Frank Whittle wrote a short paper entitled Speculation which detailed the shortcomings of reciprocating engines but also showed how an aircraft could be powered by an engine which drew in air, heated it and then expelled it at high speed. Published in the RAF college journal, he also published the basic thermodynamic equations for this type of propulsion. Continue reading Aircraft Engines Part 2: The Jet Age