OK then..... I thought you'd never ask.
Seriously, I really AM more interested in what a 175 hp on a 6.5 mtr boat would run…
Anyway, here goes…. And this was even less than I
expected…. But it’s what it is!
The tank was filled to the brim on departure, (Officially it’s a 130 ltr tank but it will actually take more like 150 to the brim). This was with white diesel with the boat on the trailer in a petrol station as its now cheaper than most marinas red stuff at duty paid prices.
From the GPS, the trip to Alderney from Lymington, (With a short detour via the Ortac Channel as I’d never been through it), was 76 N Miles, - 4.33 hours. I took on 33 litres of Maynbrace duty free red diesel in Alderney, (though at the time some of it went into a can as I my tank was frothing a bit). Anyway, 33 litres went on board for the return. Alderney to Lymington the next day was 68.2 N miles - 4.12 hours. Average speed for the trip out, (including a 5 minute stop to look at some dolphins was 18 knots – this includes the slow bit up the river) Average speed for the trip back in slightly rougher seas was 17 knots.
Yesterday I filled the tank back up to the brim with white diesel. It took 65.3 litres. That's a total refill for the whole trip of 98.3 litres
. Total millage 144.2.
Fuel consumption 0.68 litres per mile
. About 16 litres per hour at (mainly) 22 knots.
Now as I say, I really don’t want to gloat or anything…. Having said that, please check my maths
Please, anyone with a 175 ish petrol lump? What did you do?