WinGD Validates Further Progress in Ammonia Engine Development with Latest FAT in International Shipping News , Shipping: Emission Possible 22/05/2026 Swiss marine power company WinGD has successfully completed another Factory Acceptance Testing (FAT) for its ammonia-fuelled two-stroke marine engine, further advancing the development and commercial readiness of ammonia-fuelled propulsion for zero-carbon shipping. The latest FAT follows the successful completion of both Type Approval Testing (TAT) and the first FAT of WinGD’s ammonia-fuelled engine platform in South Korea earlier this year, marking continued progress in the validation and deployment of ammonia propulsion technology. The X52DF-A-1.0 engine, built by Yuchai Marine Power Co., Ltd (YCMP) underwent testing in April 2026, in the presence of China Classification Society. The engine will be installed on the first vessel for Tianjin Southwest Maritime in a series of four LPG/ammonia carriers currently under construction at CSSC Huangpu Wenchong Shipbuilding Company Limited in China. The project represents a further step in the commercial deployment of ammonia-fuelled two-stroke propulsion for this vessel type, supporting the industry’s transition towards low- and zero-carbon fuels. The WinGD X52DF-A-1.0 engine, built by Yuchai Marine Power Co., Ltd (YCMP)completed FAT in April 2026. Peter Krähenbühl, VP Product Center at WinGD, said: “The successful completion of Factory Acceptance Testing in China provides further validation of our X-DF-A platform across key performance and safety parameters. The results demonstrate continued progress in the development and validation of ammonia-fuelled engine technology ” The testing programme, which took place on the 52-bore engine to be installed on a 25,000m³ LPG/ammonia carrier, demonstrated stable engine performance and encouraging emissions results. NOx emissions during ammonia operation were significantly lower than those from conventional fuels, while N₂O emissions