Swiss marine power company WinGD has completed what it says is the world’s first type approval (TAT) and factory acceptance testing (FAT) for an ammonia-fuelled two-stroke marine engine.

Both TAT and FAT programs were completed last month, with testing of the X52DF-A-1.0 engine carried out at the HD Hyundai Heavy Industries’ Engine & Machinery (HHI-EMD) facility in South Korea, witnessed by classification society Lloyd’s Register (LR), with representatives from all major classification societies, supervised by Belgian shipping company EXMAR.