SAM OGDEN / SCIENCE PHOTO LIBRARY SAM OGDEN / SCIENCE PHOTO LIBRARY
Jet engine. Model of part of an aircraft's jet engine, with the casing cut away to show the internal components. This compressor unit draws air into the engine from the left. The compressor has sets of blades which increase the pressure of the air before it enters a combustion chamber (not seen here). Photograph of a Pratt & Whitney engine.
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