Ammonia-fueled engine completed for use on commercial vessel

Developed as part of the Green Innovation Fund Project under NEDO’s “Next-Generation Ship Development” initiative, the engine is a 7-cylinder, 50 cm bore dual-fuel design capable of operating on both ammonia and heavy fuel oil. Official test runs conducted from August 27–30, 2025, under the supervision of NYK Line, NSY, JMU, and ClassNK, confirmed its performance, environmental compliance, and safety, including leak prevention measures, with certification granted by ClassNK.