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World 4 · How a Jet Engine Works · 14 min · PRO

Why airliners cruise high

Altitude, Mach and fuel

PRO · Flight School

World 4: How a Jet Engine Works is part of PRO

The first world of Flight School is free. PRO opens the other 23 lessons in 6 worlds — simulations, quizzes and all.

  • Thrust from throwing air back
  • Squeeze, burn, expand
  • Fan first
  • A spinning wing
  • Two sticks
PRO includes
  • All 60 labs — every world, every lesson
  • Practice exams and certificates

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