Mark T wrote:
Capt. Hoss wrote:
The formula for this article is xhp * .4lbs / 6lbs or replacing x with boat
horse power
x*.4/6= gals per hour (Top number) x*.45/6=gals per hour (Bottom number)
This gives you a range of gas consumption.
Based on this formula here is a little table for ya.
Gas consumption for boats calculated by engine horse power
300 hp = 20 - 22.5 gallons per hour (gph)
200 hp = 13 - 15 gph
150 hp = 10 - 11.25 gph
100 hp = 6.6 - 7.5 gph
50 hp = 3.3 - 3.75 gph
At $5 per gallon that means
300hp = $100 - $112.50 per hour! For 3-4 hrs of tubing/Skiing = $300 - $450
per day.........PER DAY!!
OUCH!!! When you think of it that way.
Bend over, grab your ankles and say :" Thank you sir, may I have another "
I have an app on my phone to track milage/fuel consumption on car and boat.
My 320HP has been averaging about 5.8 GPH this season. Worst fill up was 7.2 GPH... lots of WOT on that run! Needless to say I find your above equation a little "off". I do also track ALL boating expenses (Gas, insurance, lake pass, registration on boat and trailer, maint, tires and even factor in $150/yr to replace the cover every 5-6 yrs), and divide that by the hrs used per season. With the boat paid off I am at $60/hr (with payments it came out to $167/hr).
As an aside, if anyone would like a copy of that spreadsheet, PM me with your email address.
_________________
Walt B
"Debt-Charged"Black '07 H210SS6.2L Bravo One turning a 21P HIFive
Wakeboard Tower with Perfect Pass Stargazer version
Missouri River; Kansas City, Mo.