Red engine covers are used for ground protection. The 60th/349th AMW at Travis AFB/CA operate some of the last KC-10s; the pictured aircraft may soon be retired.

This aircraft is wearing a rare retro livery marking heritage USAF symbols—not commonly seen on active C-17s. The 'Air Force Marathon' engine cover signifies its connection to public outreach and historic commemoration e…

The identifier '40070' and 'Martinsburg' tail code indicate it operates with the 167th Airlift Wing of the West Virginia Air National Guard.