Litres per hour approx

[Akapeterc]

I have just purchased a 2003 hunter 44DS which I will fly to soon to sail home approx 600nm. I am planning my journey allowing an estimate of 6nm/hour but there is a section of nearly 40nm were I will probably have to motor. Can any one give me an estimate of how much diesel fuel per hour that a Yanmar 56hp motor will use. Thank you

[atoll]

3-4l/per hour depending on conditions

[stevensuf]

drop down to 5kn and youll be closer to 2-3 l per hour, makes a huge difference to your range when motoring long distance

[Akapeterc]

Thanks for the info guys

[MarkJ]

On the 264 litre fuel tank of the DS44 you should be able to just make the whole 640nms at 5 kts.

The 4JH3e is quite a fuel miser.

[stevensuf]

yeah if the bottom is very clean and the sea very flat and the boat very empty, dirty bottom, medium seas and full boat, prob about 500nm with a small reserve, we are about 13 metric ton laden .

13 ton boat with 280 l of fuel and 4jh3e= 500nm doing 5kn,6kn=400nm,4kn=almost a 1000nm with slightly dirty hull, a very clean hull and glassy sea add 30%, rough seas and headwind subtract 40%.

We have used a tank (280l) going less than 250nm motoring into f7-f8 and 5-7m seas at 4-6kn but we have also gotten 800+nm motoring slowly in calm conditions.

So factor 1NM per litre in the worst conditions and 4NM per litre in the best conditions

[Jim Cate]

FWIW, planning a time constrained voyage on being able to maintain a specific and fairly high speed is problematical IMO.

From your location in the Lake, I assume that the delivery is either from Qld southward or possibly Tassie or Victoria northward. Both of those routes are subject to periods of adverse winds/seas, and keeping up a 6 knot average under those conditions is pretty difficult. Yes, your boat can go that fast under most conditions, but with a new to you boat (unknown possible flaws) I suspect that it may be harder than you think.

You might tell us just what route you are going to use... might be able to offer useful suggestions.

Cheers,

Jim

[Akapeterc]

Hi Jim, I am going from Bundaberg, thru sandy straights, Mooloolaba, Morton Bay, that's as far as I have planned so far then thru to lake Macquarie. Planning on just day sailing stopping each night. Any advise much appreciated Cheers

[zeehag]

my perkins 4-108 in my formosa 41, at 28000 pounds displacement , runs using 3 litres per hour, with a dirty bottom, that is 3 kts per hour, so 3 litres every hour makes 3 kts i am able to go on 3 litres, or 3/4 gallon, as 1.06 liters to quart or qt to litre is damnearsame.


i know there is something sneaky in this math, but i didnt find it yet....