Fuel consumption, what to buy

DutchDan

DutchDan

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Hello, I'm planning to buy a new boat. I had a Fairline 33 Targa, Princess 60 (lived on that for 4 years) and currently a RIB.
Planning to go around the Meds with it. Don't want a fuel burner anymore.

Looking for around 34 ft. Was thinking of the Fairline Targa 34, but saw it uses around 50 liters per hour when cruising. That's too much for me.

Any good suggestions? What boat is comfortable on sea, can cruise around 20kts and doesn't use to much diesel?

All suggestions are welcome.

Thanks.

Dan
 
what is an acceptable fuel burn?
whats the boat budget?
might be better going bigger boat with a slower cruise.
 
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I think you need to think about speed.

SC35 uses 60L/hr at 22kts, but much much less if you trundle along at 6kts.
(the mpg figure is waay higher at 6kts)

How fast do you need to go?

.
 
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If you want to go at 20 kts then the only material thing that will impact your fuel burn is the size of the boat.

Will Hulls make a difference? Engines? Etc. Compared to the size of the boat - no not really.

If the figures that come out dont work for you then there is only one option - and that is to slow down to displacement / hull speed.

If that is your intention then get a displacement boat. In a flat sea you can plod in a planning hull boat, but it is not meant for it and a displacement will do it better.
 
OP says 20 knots .
Which ever way you look at it a thirty something boat is going to be planing at that speed .
There’s some equations re the energy required to move x kg,s with Y hull friction at 20 knots .
It needs a certain amount of fuel burnt to release the energy to do this .
If it’s 50/60 L hr then that’s it .
If you want to burn less , then yield less energy the things gonna slow down .
If it turns out his budget can’t feed a 20 knot mobo touring the Med or he can only afford to go 6 knots at D speed then I suggest buy a sail boat .
 
My marina neighbor and friend has a sealine sc29. It’s incredible on fuel with its stepped hull and twin D3 190.
Even manages 43 mph top end. What a boat.
 
QBhoy said:
My marina neighbor and friend has a sealine sc29. It’s incredible on fuel with its stepped hull and twin D3 190.
Even manages 43 mph top end. What a boat.
Click to expand...

As incredible as he claims, it will still only do 2-3 nmpg at cruising speeds. You simply cannot go fast in a boat without using lots of fuel unless you stick with very small day boats with something like a 30-50hp outboard on the back, where you will see something around 10mpg at cruising speeds.
 
MartynG said:
Marex 320 acc
Single engine shaft drive.
Click to expand...

Single engine would be a great help, but stern drive would be better. I suspect the marex may return around 3mpg at 20ish knots while a single sterndrive would push 4mpg, maybe a little more.
 
A Fairline Targa 34 does about 2.5/7 lp-nm with 230 kad 42 is was 2.5 with 44s it is 2.7. Not many boats do better then that in 10 meters.

I think we have a fundamental problem if really one cannot afford 2.5 - 3 liter per mile, I'd say forget the boat and the dream.
Fuel consumption is the least problems on these boats. A Fairline Targa 34 depending also on location needs about 8-10000 euros a year in upkeep costs.
A sail boat if though it will consume much less needs the same. Sails need servicing and this is like having an extra engine.
 
PowerYachtBlog said:
A Fairline Targa 34 does about 2.5/7 lp-nm with 230 kad 42 is was 2.5 with 44s it is 2.7. Not many boats do better then that in 10 meters.

I think we have a fundamental problem if really one cannot afford 2.5 - 3 liter per mile, I'd say forget the boat and the dream.
Fuel consumption is the least problems on these boats. A Fairline Targa 34 depending also on location needs about 8-10000 euros a year in upkeep costs.
A sail boat if though it will consume much less needs the same. Sails need servicing and this is like having an extra engine.
Click to expand...

I wish we could run our T34 for 8-10k per year!

W, what would it cost to moor a T34 in a decent marina in Malta?
 
10 meters is about 4k a year. I pay 3.5k a year and about 100 euros a year in electricity water, but I am in Ta Xbiex the most safe and competitive marina on the island.
Lift up is 2k and since I go in an inland year that is a year cost including lifting and launching. I have left BV from two months up to six months on land depends the year and work.
Then you have parts upgrade and the rest, and sometimes always breaks. That is why I quote 8 to 10k a year. Yes I do imagine that some marinas are more expensive then others.

To be fair the South Coast of Sicily, as Ragusa, Scoglitti, Pozzallo, and Licata has even more competitive rates.
The problem in these areas that shot trip cruising grounds a bit flat, with the exception of 50-60nm Malta down South, and or the East as the Syracuse - Marzamemi - Capo Passero area.
Anyways if you want to change location let me know I can give you a help.
 
How about getting a hybrid? So you save money going very slow but without cost. That money can then be used when you want to go fast. Perhaps a Greenline.
 
All the boats suggested bely the fact that the fuel bill is too expensive. If a chap can buy a quarter million boat he's not going to throw a wobbly over fuel bills.
 
A cat may be your best option for a large boat with low fuel consumption. If you need the speed and economy with a mono hull you would need to look at probably sub 30 feet.
 
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