On June 23, 1931, Post and the Australian navigator Harold Gatty, left Roosevelt Field on Long Island, New York, in the "Winnie Mae" with a flight plan that would take them around the world, stopping at Harbour Grace, Flintshire, Hanover twice, Berlin, Moscow, Novosibirsk, Irkutsk, Blagoveshchensk, Khabarovsk, Nome, where his propeller had to be repaired, Fairbanks where the propeller was replaced, Edmonton, and Cleveland before returning to Roosevelt Field.