arild jensen wrote:Marcos Curiously my own information differs from yours. Because I worked in a naval design office I often had to extract fuel flow data for on board generators. When I bemoaned the lack of full BSFC curves and only got point data for 50% and 100% load data for various gensets the engineer informed me that most of their gensets had essentially linear curves between the two points. And if I was any sort of decent designer I would avoid selecting a genset that operated at less than 50% because of known service issues associated with this. And this also explains why we normally design in two gensets per yacht. Sometimes three.