It was that company's largest twin piston-engined aircraft at the time of its development in the 1970s. Its US military designation is C-28, and Swedish Air Force designation Tp 87. The Cessna 404 was a development of the Cessna 402 with an enlarged vertical tail and other changes. The prototype first flew on 26 February 1975. It is powered by two 375 hp/280 kW turbocharged Continental Motors GTSIO-520 piston engines. Two versions were offered originally; the Titan Ambassador passenger aircraft for ten passengers, and the Titan Courier utility aircraft for passengers or cargo. By early 1982 seven different variants were available, including a pure cargo version, the Titan Freighter. The Freighter was fitted with a strengthened floor, cargo doors, and its interior walls and ceiling were made from impact-resistant polycarbonate materials to minimize damage in the event of cargo breaking free in-flight. Variants Titan Ambassador – Basic 10-seat passenger aircraft. Titan Ambassador II – Ambassador with factory fitted avionics. Titan Ambassador III – Ambassador with factory fitted avionics. Titan Courier – Convertible passenger/cargo version. Titan Courier II – Courier with factory fitted avionics. Titan Freighter – Cargo version. Titan Freighter II – Freighter with factory fitted avionics. C-28A Titan – Designation given to two aircraft purchased by the United States Navy.
