The Lockheed L-100 Hercules was the Lockheed Corporation's less successful civilian variant of the prolific C-130 military transport aircraft. Its first flight occurred in 1964 with certification the following year. Slow sales led to the development two new versions, the L-100-20 and L-100-30, both of which were larger and more economical than the original model. Total deliveries only amounted to 114, with production ending in 1992. An L-100J variant of the updated C-130J was cancelled in 2000.
In August 2006 a total of 39 Lockheed L-100 Hercules aircraft remain in airline service. Major operators include: Libyan Arab Air Cargo, Safair and Transafrik. Some 11 other airlines also still operate smaller numbers of the type.