US Naval Air Station Grosse Ile In 1927, the US Navy floated a small tin hanger down the Detroit River, planting it on a grass airfield at the southern tip of Grosse Ile, Michigan. This established one of the nation"s largest and most important bases for training young officers in the art of flight. Nestled among farms and lavish estates, Naval Air Station Grosse Ile (NAS GI) was home to thousands of Navy officers earning their ... Full description