The Wildcat WW2 fighter like the one Butch O'Hare flew has moved at O'Hare Airport. It was always next to the windows in terminal 2 on the way to terminal 1. It moved to where a security checkpoint was by the terminal lobby. The new position is less prominent and opens up some prime retail space for a restaurant or bar. I hope the airport expands the display with the new space and revenue; the fighter is my favorite feature of ORD. Also Midway airport has a large and interesting display on the Battle of Midway, so maybe a similar display could be added at O'Hare.
Grumman F4F Wildcat Fighter in ORD Terminal 2
Prime Retail Space Where the Wildcat was Displayed