Tag: jet engines

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Video answers: ‘Transforming the jet engine’

Here are the answers to last Friday’s video, enjoy!

Suggested ICAO level for video: 5+

  1. They’re loud, use a lot of fuel and aren’t good for the environment.
  2. The problem is that neither the fan at the front, nor the turbine at the back are operating at their most efficient speeds.
  3. His change was to introduce a gearbox into the shaft of the engine which allows the fan to spin more slowly and the turbine more quickly.
  4. It made the engine 15% more fuel efficient and up to 75% quieter.
  5. They’ll save around $1.5M dollars per plane per year.

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Video: ‘Transforming the jet engine’

Fly High English - Video

This week’s video describes a revolution in jet engine design. Watch the video to find out what it is and how it could change jet engines forever.

Try to answer the following questions about the video and come back on Monday for the answers.

Suggested ICAO level for video: 5+

  1. What are some of the disadvantages mentioned in relation to jet engines?
  2. What’s the problem with the design of current jet engines?
  3. What was Mike McCune’s simple, yet radical change to the jet engine?
  4. What effect did the change have on the engine?
  5. How much will the airlines save with this new design?

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Have a great weekend!

This Genius Invention Could Transform Jet Engines

Mike McCune is an engineer with Pratt & Whitney, the airplane manufacturer. After 30 years of development, he’s created a gearbox for a jet engine that makes them 75% quieter and 15% more fuel efficient. That’s a savings of about $1.5 million per airplane each year.