I don't have any of the specific engines mentioned, but I can tell you that an 800 cc (27 oz) tank is at least double what you need for 12-15 minute flights with an FPE 3.2 (52 cc) on a WM 27% Extra. I used the tank that came with the plane, but that tank was supposed to feed the design-intended engine, an O.S. 1.60 glow 2-stroke. I will most likely be replacing the tank; a 16 oz would seem about right. It appears the 52 cc FPE uses less than an ounce per minute while flying aerobatics, to include some WOT (vertical) maneuvers. My first gasser... live and learn.