What quality is common among all of Ingersoll's positions held within the Navy?

Stuart Howe Ingersoll (June 3, 1898 – January 29, 1983)[1] was a vice admiral of the United States Navy. He was a naval aviator whose career included service as an aircraft carrier commander during World War II and tours as commander-in-chief of the United States Seventh Fleet, President of the Naval War College, and Commandant of Midshipmen at the United States Naval Academy.

Although Ingersoll held many positions within the U.S. Navy, he was first and foremost a naval aviator.