Airmen from the 820th Intelligence Squadron, Offutt Air Force Base, Nebraska, clean an SR-71 Blackbird Oct. 3, 2017 on display at the Strategic Air Command Aerospace Museum, Ashland, Nebraska. The original pilot of the aircraft recently passed away and the museum no longer has anyone to manage the cleaning schedule. The 820th IS Airmen stepped up to volunteer to clean the aircraft and some other aircraft on display on a quarterly basis. (Courtesy photo)