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Why can't a ramjet engine start an airplane moving from a standstill?

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  1. It has no fuel tank
  2. It needs forward speed to ram air in
  3. It only works underwater

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References

  1. Ramjet Propulsion, NASA Glenn Beginner's Guide to Aeronautics www.grc.nasa.gov/www/k-12/airplane/ramjet.html Checked 2026-10-10.

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