Operation Windmill Expedition Member with Penguin, by Unknown, 1947-1948, Smithsonian Archives - History Div, Image of an Operation Windmill expedition member standing near a penguin in Antarctica. Behind them is the Icebreaker USS Burton Island (AG-88), one of the two Icebreakers used during the expedition. Operation Windmill (1947-1948) was an expedition established by the Chief of Naval Operations to train personnel, test equipment, and reaffirm American interests in Antarctica..