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Production. Pratt and Whitney airplane engines. Engineers working at the control panel of a test stand at a large Eastern…
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Production. Pratt and Whitney airplane engines. Engineers working at the control panel of a test stand at a large Eastern plant study the performance of a new Pratt and Whitney airplane motor. Each engine must meet rigid Air Force requirements before it is shipped to one of our huge aircraft factories. Pratt and Whitney Aircraft. Sourced from the Library of Congress.

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Production. Pratt and Whitney airplane engines. Engineers working at the control panel of a test stand at a large Eastern plant study the performance of a new Pratt and Whitney airplane motor. Each engine must meet rigid Air Force requirements before it is shipped to one of our huge aircraft factories. Pratt and Whitney Aircraft. Sourced from the Library of Congress.

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