Recent status on development of the turbofan engine in Japan

Efforts to design and develop new jet engines have been made in Japan since 1953. One family of propulsion engine (J3) succeeded in getting into production to be installed on two models of Japanese developed aircraft (T1B and P2J). Another family of lift engine (JR) has been successfully used for overall VTOL system studies. Based on these experiences, studies on a new fan engine for main propulsion are being carried out. This new engine (FJR-710) is a high bypass front engine developed for low noise generation and low smoke emission. The interim goal for the engine is an exhaust smoke density below AIA 25. A combustor of the air-swirl atomizer type has been adopted which can successfully reduce smoke.