洛克希德为应对民用版“大力神”飞机滞销而推出的加长版 L-100-20 货机在停机坪。（The L-100-20 featured an extended cargo box, which was lengthened by 100 inches (8.3 feet) using a 60-inch plug ahead of the mid fuselage and a 40-inch plug aft of the mid-fuselage. This aircraft carried seven pallets. All total, 27 L-100-20 models were produced and delivered.）