#Police

It was the official result of the USAAC’s hyper engine efforts that started in 1932, but never entered widespread production as it was not better than other available engines when it finally matured. In 1939, the I-1430-3 was designated as the engine to power the Curtiss XP-55, an extremely radical (for the time) pusher-engine fighter design that would not reach production. Today this spelling variation is obsolete. Note however, that though most misspellings arise from true pronunciation, some derive from hyper-correction, i. [Read More]