South Korea introduced its first indigenous private aircraft Wednesday in a ceremony also marking the first flight of the light passenger plane, named "Naraon." The plane was unveiled by Korea Aerospace Industries Ltd. (KAI) in Sacheon, 437 kilometers southeast of Seoul. It is the first non-military aircraft developed and built by South Korea, according to the Ministry of Land, Transport and Maritime Affairs. The country began developing the four-seat, single-engine propeller aircraft in 2008 to become the world's 28th nation to build and fly an indigenous plane.