5 Fast Facts On The 4 C-130 Hercules Variants Used By The US Air Force

The Lockheed C-130 Hercules is a four-engine turboprop military transport aircraft designed and developed in the late 1940s. More than seventy years after the first prototype took flight, the C-130 remains in production. The United States Air Force uses four different variants of the aircraft, serving a range of military and humanitarian operations.