11/15/2014. Remarks by Johan Visschedijk: "Powered by the same 3,250 hp Wright 872TC-18DA-l Turbo-Cyclone engines as the Model 1049Cs, four convertible passenger/cargo aircraft (registered N6501C to 6504C, c/n 1049D-4163 to 1049D-4166) were built for Seaboard & Western Airlines in 1954. They were fitted with reinforced flooring and had maindeck cargo loading doors on the port side of the fuselage, fore and aft of the wings. They could carry either 36,000 lb (16,329 kg) of freight or up to 104 passengers, and had a maximum take off weight of 135,400 lb (61,416 kg) and a maximum landing weight of 113,000 lb (51,256 kg)."