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Digital Exhibits: Teenage engineer MacCready

Teenage engineer MacCready

Photo ID PBM1.1-4

By the age of 15, Caltech alumnus Paul MacCready (PhD 1952) was already winning laurels in gas-powered model airplane competitions. He poses here with his model “Topper,” circa 1940, which won trophies in two weight classes by swapping out two engines on the same plane.