9. Turbojet/Turbofan

Gemini Sparkle

Key Takeaways:

  • Jet engine concepts were independently developed by Frank Whittle (England) and Hans von Ohain (Germany) by the mid-1930s, leading to the rapid obsolescence of piston-engine fighters post-WWII.
  • By the 1950s, jet-powered airliners, such as the de Havilland Comet, revolutionized air travel by offering higher, faster, and more reliable flight.
  • The introduction of turbofan engines significantly enhanced jet engines, making them orders of magnitude quieter and more fuel efficient, and establishing them as the standard for modern air transportation.
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In some ways, these are two separate breakthroughs. By the mid-1930s, designs that incorporated all major concepts and components of modern turbojet engines were being developed independently by Frank Whittle in England and Hans von Ohain in Germany. Before the end of the war, there were a handful of jet aircraft that entered production, but only the Me 262 was produced in any numbers. But by the war’s end in 1945, jet engine design had come so far that just a few years after the end of the conflict, the fastest piston-engine fighters in the world were obsolete. By the 1950s, with the introduction of the de Havilland Comet, the jet-powered airliners could fly higher, faster and with far greater engine reliability. The introduction of the turbofan engine—ubiquitous in today’s air transportation world—improved jet engines in numerous ways, making them orders of magnitude quieter and more fuel efficient than their turbojet predecessors.A modern turbofan engine

Aviation Breakthroughs: Aviation Lasts

Isabel Goyer

A commercial pilot, Isabel Goyer has been flying for more than 40 years, with hundreds of different aircraft in her logbook and thousands of hours. An award-winning aviation writer, photographer and editor, Ms. Goyer led teams at Sport Pilot, Air Progress and Flying before coming to Plane & Pilot in 2015.
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