Propulsion Systems Laboratory (PSL) No. 1’s primary cooler
Propulsion Systems Laboratory (PSL) No. 1’s primary cooler cooled the hot exhaust gas from the engine being tested in the test chamber. (9/24/1952)
Image Credit: NASA
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https://www.nasa.gov/image-detail/grc-1952-c-30769/
Image CreditNASA
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