Diesel is almost twice the price of last year (Ligurian coast)

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prinex

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Went to the pump for a quick 470 lt... 1063 Euro. 2.26 Euro / liter. Was 1.89 4 weeks ago but I still had more than half tanks so... I wonder what will be in August. Last summer it was 1.35 or so in Monaco ? cant really remember.

BTW on the dock bunkering was also the MY Invictus - was loading diesel for a whopping 400.000 Euro bill. Crew told me they burn 800 lt/hour when moving around... well other problems.

At least I get the envious looks on the pier when I casually drop "my Primatist with the damned foots, you know the ones you always bitch they are a sinking waiting to happen ... does 22kn at 70 lt/hour ..." my neighbor with a Fairline 48 chugs 180/lt hours for the same speed. There is a small bay "Latte" that we visit often, 20 miles return - he told me 500 Euro is a bit to steep for a swim which I agree. Plenty of rags around "told you so" look on their face. Also more and more sailing cats, atm they look really interesting once you move in the 600 miles return area (Mallorca / Ibiza , South Sardinia).

Going to Port Cros with the kids + 4 of their friends Tuesday for a short cruise, I foresee plenty of pottling around (7.5 kn at 7lt/hours is 1/3 of planing burn) so I guess I will wake up 05:00 am and by the time the kids emerge from the cave we will be around the destination.

Still when I look at those cats ... you could play volleball on their decks.
 
prinex said:
At least I get the envious looks on the pier when I casually drop "my Primatist with the damned foots, you know the ones you always bitch they are a sinking waiting to happen ... does 22kn at 70 lt/hour ..." my neighbor with a Fairline 48 chugs 180/lt hours for the same speed.
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What boat and engine(s) combo is your primatist?

we use about 50 litres per hour at 30 knots in total - but a relatively small boat (28 foot with single 300 hp outboard), so not too bad , but it still stings a bit at current prices.
 
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Marinas are turning into floating caravan parks here in Ireland, hardly a boat moving but lots of cars in the car parks so obviously people in boats but very few motoring.
Can see a very large scale "for sale" Glut soon, especially by the new covid years owner's who clambered for anything to go holidaying in or on when travel restrictions were in force.
 
just put 255 litres in boat for my trip to holy loch and another 167 litres on saturday at largs 60/40 split worked out at £1.98 litre frightening.
 
€2’21 in Loano .
It only 0.2 C over car diesel .
We get 30 L / hr at 9 knots so not too bad .

We have booked berths Genoa 30 miles , Portofino another 30 ish miles and Porto ven somthing or other ( La Sepzia bay ) next week .
All in all about 160 miles rtn .

planing means 30 knots @ 180 L / hr and each leg is done within a hr .
plotter says Loano - Genoa 3 1/2 hrs at 9 knots ……..so that’s the way to go .
I have driven Ferraris in London , the traffic hardly diminishes the experience it’s still better than AN Other car inho .
Self restraint is good for you someone once said ?

Aside why leave at 10 am and arrive @ 11 am anyhow ?
 
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Portofino said:
€2’21 in Loano .
It only 0.2 C over car diesel .
We get 30 L / hr at 9 knots so not too bad .

We have booked berths Genoa 30 miles , Portofino another 30 ish miles and Porto ven somthing or other ( La Sepzia bay ) next week .
All in all about 160 miles rtn .

planing means 30 knots @ 180 L / hr and each leg is done within a hr .
plotter says Loano - Genoa 3 1/2 hrs at 9 knots ……..so that’s the way to go .
I have driven Ferraris in London , the traffic hardly diminishes the experience it’s still better than AN Other car inho .
Self restraint is good for you someone once said ?

Aside why leave at 10 am and arrive @ 11 am anyhow ?
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In July we are planning to go straight from imperia to La Sepzia, cutting out Genoa.
 
Chris H said:
In July we are planning to go straight from imperia to La Sepzia, cutting out Genoa.
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We are picking up daughter from the airport next door to the marina .
When we are done with La Spezia , Loano s 70 miles as the crow flys so we will probably gun it back .Having said that if it’s calm and air temp roasting then the slow boat back is temping.
The motors run around 50 % load at 770 rpm - 9 knots 15 L / side .MAN recons some 50 % load running is harmless anyhow .
 
prinex said:
This is interesting, 50% load is at 2600 rpm on the volvo or do I misunderstand load here ?
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The figure is from the screen on the dash .
Related to the prop curve , and what when spinning at 775 its asking the injector s as a % of there range to give .
The boats just short of pushing a bow wave in displacement mode .

The eco speed is the fastest D speed with no bow wave , ie its attempts to get up on the plane .

Eg 875 another 100 rpm the loads pushing 65% the fuel burns 36 L per side for an extra knot .= 3 x the 15 L / hr , the fuel burns tripled .It’s pushing a huge bow wave now wasting fuel .
 
But is it safe to run diesels (in particular modern VP common rails) at low rpm for long period of time?
Sorry if this subject has already been discussed in the past, but I think this will be a hot topic this season...unfortunately.
 
This season has so far been poor with only 377nm travelled at 65 hrs on the helm according to the Axiom captain's profile. That's a 5.8knt average for a 350 litre burn for £600 on a split. It's been a bad year weatherwise or would be worse. However, I am finding a new joy in kicking back in watch letting the autopilot do it's thing at dawdle speeds. Also with a change to a lighter prop set I am finding that sweet spot right right after transition mode to be about 14 knts @ 2500 rpm which turns out to be a great speed to travel at when things get a bit bumpy while still being very economical. (with higher pitched props it was too easy to fall off the plane at this speed)

images.png

EDIT i.e. no more supercharger whine kicking in and out
 
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marcochi76 said:
But is it safe to run diesels (in particular modern VP common rails) at low rpm for long period of time?
Sorry if this subject has already been discussed in the past, but I think this will be a hot topic this season...unfortunately.
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It's safe to do so but they don't really like it in the sense that they tend to get carbon buildup in the likes of the turbo, etc.. Look at how many boats with big engines chug up and down rivers for years. Brooms, Princess and so forth. That said, I would far rather have a S/H boat with a diesel that has worked fairly hard than a river run one. Just designed and better to be run at say 70-80% load. Work a diesel hard but not flogging it.
 
BruceK said:
This season has so far been poor with only 377nm travelled at 65 hrs on the helm according to the Axiom captain's profile. That's a 5.8knt average for a 350 litre burn for £600 on a split. It's been a bad year weatherwise or would be worse. However, I am finding a new joy in kicking back in watch letting the autopilot do it's thing at dawdle speeds. Also with a change to a lighter prop set I am finding that sweet spot right right after transition mode to be about 14 knts @ 2500 rpm which turns out to be a great speed to travel at when things get a bit bumpy while still being very economical. (with higher pitched props it was too easy to fall off the plane at this speed)

View attachment 137639

EDIT i.e. no more supercharger whine kicking in and out
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We're also enjoying throttling back sufficiently to disengage the supercharger the pootle along. Probably getting 3+ MPG. As you say, set the auto pilot and enjoy the view.

Never has it been more important to have nice anchorages within spitting distance.
 
marcochi76 said:
But is it safe to run diesels (in particular modern VP common rails) at low rpm for long period of time?
Sorry if this subject has already been discussed in the past, but I think this will be a hot topic this season...unfortunately.
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It has been discussed before briefly, it depends .
Modern CR are the most ok as the myriad of electrotwackery that comes with CR reduces the diesel squirt to suit the lower cylinder temps / pressures of pootling along at D speed .

Horror stories of cylinder glazing and carbon ing up the injector tips are from ancient motors mostly mech ( read sans electronic/ electrotwackery) motors .They have primitive albeit ultimately more reliable injectors and with out the said electrotwackery just squirt away at low rpm often too much ie over fuelled = excess carbon , cylinder washing , glazing and everything else that shortens there life .

Is said a good Italian tune up every few hrs to blow out and clean etc might help ?

The rest circa yr 2000 upwards are in between electronic injectors with some sensors can alter the fuel ing and they can run at say 50 - 65 % loads for prolonged periods .Having said that consult the engine manufacturers manual they often state the yearly hrs and load ratios .
That depends on the state of tune .Most Mo Bo s gave the highest state of tune ( Hp ) and lowest annual hrs .
Mines the highest ( in its day ) rated for 1000 hrs/ Pa , 20 % full load , 50 % under 1/2 and the other 30 I can’t quite remember .
So I will comfortable at part load 50 % .Even so there always a bit of 80 % load in my trips anyhow, which equates to 30-32 knots depending on fluids carries .

Another factor is correct oil and upping the change Fq .
look carefully at the year / genre and choose the right oil mineral vs synthetic.RTFM !
Change it annually .Forget “ it’s only done 50 hrs ( 1000 miles or what ever ) a lot of slow running gobbles up the additive package .Older motors were made to less strick tolerances with piston skirts for thicker mineral oils .Newer stuff are tighter better suited to synthetic. Get it wrong and you multiply the carbon build up .The rings can’t expand and seal as well at lower cylinder T+P s .Thiner oil will get past quicker and contribute to the potentially to the harm at running at slow speeds .
 
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Portofino said:
We are picking up daughter from the airport next door to the marina .
When we are done with La Spezia , Loano s 70 miles as the crow flys so we will probably gun it back .Having said that if it’s calm and air temp roasting then the slow boat back is temping.
The motors run around 50 % load at 770 rpm - 9 knots 15 L / side .MAN recons some 50 % load running is harmless anyhow .
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Five years ago did Pisa direct to Loano, 12 hours @8kn if i remember right. Lovely voyage, very little traffic, peaceful
 
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