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Cow Milked While Flying in an Airplane Day celebrates Elsworth W. Bunce’s cow, Elm Farm Ollie, the first cow to be flown and milked in an airplane. On February 18, 1930, a Guernsey cow named Nellie Jay, sometimes known as Elm Farm Ollie, was flown from Bismarck, Missouri, on a Ford Trimotor plane to the International Aviation Exhibition in St. Louis as part of a scientific effort to study whether heights affect cows’ ability to produce milk. Ollie was known as a high milk-producing cow and was chosen entirely because of her calm nature. Proceeding the milking process on the 72-mile flight over Missouri, milk cartons (made of paper) on parachutes were let down to spectators to create publicity. Also, the trip was meant to show the ability of the new Ford Trimotor aircraft that had only just begun shipping after its production began in 1925. According to historians, the purpose of the trip was to prove to farmers that farm animals can be flown from one place to another and be milked en route.
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