The Lockheed L-100 Hercules is the civilian variant of the prolific C-130 Hercules military transport aircraft made by the Lockheed Corporation. Its first flight occurred in 1964. Longer L-100-20 and L-100-30 versions were developed, despite this, L-100 production ended in 1992 with 114 aircraft delivered. An updated variant of the model, LM-100J, completed its first flight in Marietta, Georgia on 25 May 2017, and started production in 2019. L-100 and LM-100J aircraft can be distinguished from the C-130 and C-130J military versions by the absence of side and forward windows underneath the main windshield.