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Roy........
"what speed/RPM is that?"
It's an average fuel consumption.
Worked out in much the same way as for my Car really, I know the car does about 30mpg but I'm buggered if I know how much it uses at 30mph, 20mph 70mph, 2000 rpm etc etc etc, nor do I want to know.
However....if I drive it like I stole it....I use loads of fuel, If I drive It like my Gran I use less.
The boat does Speeds between 0 knots to 42.8 knts
RPM from Idle to About 6000
It's the usual mixture of pootling and blasting.
I keep tabs on how much petrol goes in, how many miles I get out. Divide one into the other every now and again and I get the above averages.
I don't need any more than that.
Hope that helps.
Probably explains why I didn't fit the fuel flow meter after buying it too! DOH!
Best fuel flow meter for me is my bank statement!!
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