Development and Design
In the mid-to-late 1950s, the Japanese Ministry of International Trade and Industry identified a requirement for a short-haul airliner to replace Douglas DC-3s flying on Japan's domestic routes, and encouraged companies in Japan's aircraft industry to collaborate to develop and produce the new airliner. A joint venture between Mitsubishi Heavy Industries, Kawasaki Heavy Industries, Fuji Heavy Industries (now better known as the parent company of automobile manufacturer Subaru), Shin Meiwa, Showa Aircraft Industry Company and Japan Aircraft Industry Company was set up in 1957, being formalised as the Nihon Aeroplane Manufacturing Company (NAMC) in 1959.
NAMC designed a low-winged twin-turboprop monoplane seating 60 passengers. Although the aircraft was mainly designed and manufactured in Japan, the engines were built by Rolls-Royce, with the 2,275 kW (3,050 ehp) Rolls-Royce Dart RDa.10/1 being selected for the new aircraft. Electronic equipment, avionics, mechanical and fuselage components were supplied either by Japanese companies or foreign suppliers during the YS-11's production lifetime. The twin-engined YS-11 delivered similar operational performance to the four-engined Vickers Viscount, and had 50% more capacity than the similarly configured Fokker F27 Friendship.
The first prototype made its maiden flight from Nagoya Airport on August 30, 1962, with the second prototype flying on December 28, 1962. It received its Japanese Type certificate on August 25, 1964, with American Federal Aviation Administration (FAA) certification following on September 9, 1965.
182 were produced in total, of which 82 were exported to 15 countries.
Read more about this topic: NAMC YS-11
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