Saving some gas

alexander38 · Post by **alexander38** » Sun Jan 30, 2011 6:48 pm

naw what he is say I think is if it takes 8 hrs at 8 knots, and 4 hrs at 16 it's the same burn rate.

which can be true at times. With my hull if I go over hull speed just a little or if I'm heading in to the chop I might as well get her up on plane and 14.

I think that was his point...

Captain Blast Off · Post by **Captain Blast Off** » Sun Jan 30, 2011 7:04 pm

I run my old boat at about 1300 rpm and about two beers per hour (depending on the heat)

; don't have to worry about fuel; do have to worry about beer

!

alexander38 · Post by **alexander38** » Sun Jan 30, 2011 7:55 pm

then that would be 2 p.b.r.p.h.

foofer b · Post by **foofer b** » Mon Jan 31, 2011 10:10 am

alexander38 wrote:naw what he is say I think is if it takes 8 hrs at 8 knots, and 4 hrs at 16 it's the same burn rate. which can be true at times. With my hull if I go over hull speed just a little or if I'm heading in to the chop I might as well get her up on plane and 14. I think that was his point...

Your example only works if the cruising speed burn rate is double/or less the hull speed rate of fuel consumption.

Mine burns around four times as much (at least) at 3000 rpm as at 1400. So it takes about twice as much fuel to get there in half the time.

I geuss if you factor in the PBRPH rate it is a wash!!!

prowlersfish · Post by **prowlersfish** » Mon Jan 31, 2011 10:44 am

as do most boats

alexander38 · Post by **alexander38** » Mon Jan 31, 2011 7:45 pm

I was just trying to make since of what I was reading. You all read it and tell me what he was tryin to say. And every boat on this site is going to have different burn rates. I was giving generality..