03-29-2007, 01:41 PM
I can help with that. [cool]
8 250hp outboard motors is about 5500 pounds of weight alone. The boat probably adds another 8000, so were looking at 13500 pounds worth of boat (dry weight). Now, lets say it has a 300 gallon tank at 6 pounds a gallon, add another 1800 pounds of weight. Now were up to 15300 pounds. Now, add people, drugs, and gear, might as well add another 2000 pounds. We've got a total of 17300 pounds. The average outboard in that size range gets around 2.5 miles a gallon when matched on a light boat. You're probably looking at about a gallon a mile per outboard based on the weight and the extreme drag a boat like that would have. So, based on my limited knowledge, i'd bet it's safe to say it spends about 8 gallons of gas a mile, depending on how the boat is driven. It might get better than that depending on the spec's of the boat. Considering the fact of all that horsepower, those motors don't have to work very hard to move the boat, based on that theory, it might get better gas mileage than I think. I might get excellent gas mileage, something like 4 gallons per mile. A half gallon per motor per mile.
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8 250hp outboard motors is about 5500 pounds of weight alone. The boat probably adds another 8000, so were looking at 13500 pounds worth of boat (dry weight). Now, lets say it has a 300 gallon tank at 6 pounds a gallon, add another 1800 pounds of weight. Now were up to 15300 pounds. Now, add people, drugs, and gear, might as well add another 2000 pounds. We've got a total of 17300 pounds. The average outboard in that size range gets around 2.5 miles a gallon when matched on a light boat. You're probably looking at about a gallon a mile per outboard based on the weight and the extreme drag a boat like that would have. So, based on my limited knowledge, i'd bet it's safe to say it spends about 8 gallons of gas a mile, depending on how the boat is driven. It might get better than that depending on the spec's of the boat. Considering the fact of all that horsepower, those motors don't have to work very hard to move the boat, based on that theory, it might get better gas mileage than I think. I might get excellent gas mileage, something like 4 gallons per mile. A half gallon per motor per mile.
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