Vacuum Test of Pratt & Whitney RL-10 Engine
Lewis engineers examine an Atlas-Centaur model with a Pratt & Whitney RL-10 in the Propulsion Systems Laboratory (PSL) test chamber behind them (1962).
Image Credit: NASA/Martin Brown
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https://www.nasa.gov/image-detail/grc-1962-c-62465/
Image CreditNASA/Martin Brown
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