INDIANAPOLIS, IN - MAY 27: An Air Force helmet of a crew member for Conor Daly, driver of the #17 Dale Coyne Racing Honda, sits on top of a pit box in the paddock prior to the start of the IndyCar Series Indianapolis 500 on May 27, 2018, at the Indianapolis Motor Speedway in Indianapolis, Indiana. (Photo by Michael Allio/Icon Sportswire)