Mac "Fiddlesticks" is a 1985 Mainship 36 ft. double (aft) cabin. It has twin Crusader (gas) engines, 350 cubic inches and 270 hp each. Our boat will cruise easily on plane at 15 kts but burns about one gallon per statute mile at this speed. We ran on plane in the Gulf, Lake Okeechobee, Delaware Bay, New Jersey offshore, Lake Ontario and other times when the seas were uncomfortable or the weather window was short. But whenever possible we ran on one engine at about 7 kts (plus or minus the current) and 2 statute miles per gallon or better. Our overall average for the loop was 1.5 mpg. We bought 3889 gallons and spent $8672. I'm sure I could have done better but there are times when a little speed is very nice. We generally enjoyed the slower speeds a lot more than faster. BTW gasoline is available everywhere. We had no problems with range. Jim Fidler "Fiddlesticks" (on Texoma) ------------------------------------------------------------------- > Do you have at least an estimate of your fuel usage > per mile? > > D C "Mac" Macdonald _______________________________________________