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US engineers winterized WWII aircraft in Minnesota to prevent engine freezing.
During World War II, the U.S. government established a top-secret facility in St. Paul, Minnesota, to solve the problem of bomber engines freezing in Arctic conditions.
Engineers from Northwest Airlines and the military collaborated to "winterize" aircraft, testing de-icing systems in extreme winter storms to ensure safe flight.
Their innovations enabled safe operations in sub-zero temperatures and contributed significantly to Allied success, with over 3,000 aircraft processed before the war ended.
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Los ingenieros estadounidenses invernaron aviones de la Segunda Guerra Mundial en Minnesota para evitar el congelamiento del motor.