C-130H Hercules aircraft perform four-ship formation
A C-130H Hercules aircraft assigned to the 182nd Airlift Wing, Illinois Air National Guard, takes off in a four-plane formation training during drill weekend in Peoria, Ill., May 6, 2017. The C-130 is capable of airdropping troops and equipment into hostile areas while operating in inclement terrain. (U.S. Air National Guard photo by Tech. Sgt. Lealan Buehrer)