SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/aero-jet-core-sequence

Which sequence follows air through a basic jet engine core?

Compress, burn, expand through turbine.

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  1. Burn, compress, cool
  2. Expand, store, compress
  3. Compress, burn, drive turbine ✔

Why: The compressor raises the air pressure. Fuel burns in that compressed air, and the hot gases expand through a turbine before leaving the engine.

Huh, didn't know that: The compressor and turbine are linked by a central shaft.

The dad joke
The jet engine followed directions because it liked going with the flow.
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References

Answer: Compress, burn, drive turbine. The compressor raises the air pressure. Fuel burns in that compressed air, and the hot gases expand through a turbine before leaving the engine.

  1. Aerospace Dimensions Module 2: Aircraft Systems and Airports akwg.cap.gov/media/cms/Module_2__Aircraft_Systems_and_Airp_1A4CD2C6AF085_eae81.pdf
    Air is pulled in through the fan section and gets compressed in the compressor section. Fuel is sprayed into the burner section and ignited.
    Checked 2026-10-10.

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