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VINTAGRAPH • WPA • WWII • YOU MEAN A WOMAN CAN OPEN IT?

Propellers 101

September 1942. Students at Washington High School in Los Angeles training for specific contributions to the war effort. Instructor Ralph Angar explains propeller characteristics to students in the aeronautics class. View full size. 4x5 Kodachrome transparency by Alfred Palmer, Office of War Information.

September 1942. Students at Washington High School in Los Angeles training for specific contributions to the war effort. Instructor Ralph Angar explains propeller characteristics to students in the aeronautics class. View full size. 4x5 Kodachrome transparency by Alfred Palmer, Office of War Information.

 

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