NASA compressor rotor balancing. Full caption: "20 INCH COMPRESSOR ROTOR WHILE ON BALANCE MACHINE IN MACHINE SHOP"
Fullsize image: https://diqn32j8nouaz.cloudfront.net...r_fullsize.jpg
Previously:
1951 NACA 20-inch compressor in lathe - photo
1956 NACA magnaflux inspection - photo
1954 NASA chemist - photo
1963 NASA clean room tig welder - photo
1964 NASA tensile machine crack toughness test - photo
1944 metallurgy supercharger - photo
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