Calvin Coolidge Says, August 7, 1930

December 10, 2020

Date: August 7, 1930 Location: Plymouth, VT (Original document available here) The successful flight of the R-100 again challenges our progress in aviation. Notwithstanding our original discoveries, our efforts to build military planes during the war were feverish but, owing perhaps to the limited time, were not highly successful. These experiments, however, did produce plant […]

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