So I think i finally understand the ratio entry in the moduleengineFX, and its use with ISP. However, does anyone know of a way to easily calculate what the values should be if i want to, say, add a small amount of ablator/metal (from CRP) consumption to the engine? I don't know the exact amounts yet, waiting of copies of research papers, but is there any way i could input the maxthrust, isp, and ratios and get out the actual amount of resources per seconds? (Or some other combination) Just wondering if any other modders already have their own scripts so I don't go reinvent the wheel.