How many hours per year do you do?

[Happy1]

Interesting, I was looking at an identical length boat, the Glastron GS279 with a 170hp KAD32, so I guess my speed would dramaticaly drop from 42 knots which I get at present! to perhaps 27 knots max? Perhaps I am still too young to be looking at 170hp single diesels, you only live once /forums/images/icons/laugh.gif So what engines do I need to keep my 42 knots in diesel language or petrol in a 28 footer?

<hr width=100% size=1><font color=purple> "You only see what you recognise, and you only recognise what you know" <font color=purple>

 

[BarryH]

Depends on the hull and a load of other factors.

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[Happy1]

That's the biggest load of nonsense I have heard! Are you trying to tell me Astronaughts are thick and not worried how things work?

What about the difference between a scientist and a salesman. The scientist concocts a potion to kill bugs in fuel, using all his vast knowledge and taking care to do his best and make it work, the bug killer salesman sees an opportunity to get rich quick and just wants to get commission, so tries all the tricks possible to sell it, but doesn't really care how or if it works /forums/images/icons/laugh.gif

<hr width=100% size=1><font color=purple> "You only see what you recognise, and you only recognise what you know" <font color=purple>

 

[BrendanS]

Na, that one don't work. What about salesmen who are scientists?

<hr width=100% size=1>Err, let me know if Depsol enters the forum, I'll go and hide

 

[Moose]

DON'T MAKE ME WORK OUT HOW MUCH MY FUEL COSTS, PLEASE!!!!

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EL MOOSEO

 

[DepSol]

You dont half talk some B*ll*x, specially about things you know nothing about.

I am glad you dont boat round here, they would be picking you off the rocks like another speedboat today off SPP.

The news today.........Boat hit rocks at 42 knots, overloaded with extras and could not get to safety equipment in time. People rescued by local boat who tried to warn the owner but the owner would not listen.

The owner a Happy1 (not so happy now) could only keep muttering "I thought I had researched that area, must do more research, must do more research" was carted off to the hospital where a doctor pronounced him brain dead but not because of the accident. The only identificatin on him was this badge /forums/images/icons/smile.gif which was verified by the members of the Mobo Chat Forum. Story ends /forums/images/icons/smile.gif

<hr width=100% size=1>Dom

Now where is that Brendan hiding?

 

[Solitaire]

Now this is real anorak stuff! I had Solitaire converted to LPG in 2001. My first fill was 168 litres and the log read 1,888 nautical miles, my last fill was 30/5/03 and the log reading was 3,521 so thats 1,633 nm. In that time I've used 5,234 litres of LPG or 1,151 gallons at a cost of £1,714.24. Now, filling up using petrol from cans, i.e. from the petrol station it would have cost me £3,279.08, the "on the water" cost of petrol would have cost me £4,804.72. Now you have to take into account that the conversion cost £3,200, LPG does not give you the same range as petrol. So what does it all mean? Bugger all! it was nice refulleing at with 160 litres and it "only" costing £60. I'm now going to diesel, but the new engine is costing some £6k to get up and running and I'm "excited" about only paying 30p a litre for diesel at say 3 gallons an hour, compared with 6/8 gallons on petrol.But hell, I'm not going to get the boat back untill August at the earliest and I'm in servere withdrawel (can't even spell, it's got so bad/forums/images/icons/wink.gif). My point is, you can end up researching the hell out of things and ending up with so much data you can't see the hull for the weed. Happy, stick with what you've got for a bit, ask all your forum chums to let you "hot seat" and get a feel for what suits YOU and your circumstances, not to mention your budget. Think seriously about buying a new boat - all that VAT you'll have to pay/forums/images/icons/wink.gif and as you've proven, new does not mean all will be well/forums/images/icons/mad.gif. There are loads of boats that are only a few years old with low engine hours and where the VAT has been paid for you.
Anyway, thats my pennies worth!


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[BarryH]

Bad day at work then, was it Dom!

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[Happy1]

Interesting figures, but why part with it now when you are getting near break even point? I see what you mean about the price of diesel, perhaps the 'feel good factor' is paying your lump sum up front for the diesel boat and then thinking, or fooling yourself into thinking you are getting cheaper boating at 30p a ltr.

I have loads of spread sheets working out the pro's con's and ups and downs of a bigger boat, the pro's ad con's of diesel against petrol, and you know what, I keep finding that what I have is perfect, but would be nice if it was twice the size for certain weekends, e.g when SWMBO is on it /forums/images/icons/wink.gif Hence the charter scenario. I could get a good few charters on 28 ft boats for the saving of a £90k initial purchase cost plus trading my present one in, compared to keeping my present one, chartering when and where I want e.g. abroad or UK, plus the benefits of not having to lose on depreciation, deal with slimey boat dealers, pay to moor it, insure it, service and maintain it. The interest on the invested money would pay for a day or so itself. I just don't know the cost of charter.



<hr width=100% size=1><font color=purple> "You only see what you recognise, and you only recognise what you know" <font color=purple>

 

[Solitaire]

'cuase the V8 went tits up/forums/images/icons/mad.gif Water got into the bores etc. A new petrol rig was going to cost +/- £8k and a possibel rebuild was not on the cards. The Sprint is a great little boat and the diesel just drops in. Apart from that I've been told the value has gone up by more than what its costing me to put the new rig in/forums/images/icons/smile.gif


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[Happy1]

What are the performance figures going to be like going to the 170hp diesel from the V8 petrol?

<hr width=100% size=1><font color=purple> "You only see what you recognise, and you only recognise what you know" <font color=purple>

 

[Solitaire]

I'm going to lose top end. But even with the V8 (VP AQ225) it was only about 32 knots. I expect to get around 28/30 but the crusing speed of around 22-26 knots at around 2,5 galls an hour will suit me fine. It means i'll be able to X channel and extend my cruising range at an economical rate. The torque will also get me on the plane quicker as well. I've heard that the 170 diesel will out pull the V8 at the early staqges and only loses out on top end. The Sprints hull is not really up to 40+ knots so what the hell/forums/images/icons/smile.gif, but she is dam good for her length is choppy seas.

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[Happy1]

Sounds great, I wonder if I could fit one in mine /forums/images/icons/wink.gif

<hr width=100% size=1><font color=purple> "You only see what you recognise, and you only recognise what you know" <font color=purple>

 

[Solitaire]

I hear you have joined Pathfinders, there is a member who has a Regal, same length as yours with a (I think?) a Merc diesel. He seems very happy with it. So yes you could and what's more he gets 40 knots +

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[Renegade_Master]

In my first year with Finola I did 1371 nm. If you are gonna get a larger more expensive boat then you might as well spend a bit more money and use the thing.
There used to be another Crown on the same pontoon as mine at Brighton, never saw it go out, though the owners were on it some weekends.

<hr width=100% size=1><A target="_blank" HREF=http://www.suncoastmarine.co.uk>Sun Coast Sea School & Charter</A>

 

[terryw]

Pete,
I have a 28 footer with twin diesels. Top speed to date 45 knots (GPS) with some revs to spare. Cruise at 30 knots @ 2500 RPM using approx 50 litres per hour (@25p = £12.50). It may take 10 seconds more to get over the hump than my previous 5.0 litre petrol in a 25 footer, but once on the plane no noticable difference (apart from the extra noise and vibration). The petrol did 27 knots @ 3500 RPM using 40 litres per hour @ 90p ish = £ 36.00.
I used the same argument last year regarding the purchase price difference between petrol and diesel, and also came to the conclusion it would take 10 years to break-even. However, with the average 2 hour buzz costing approx £70 in fuel, and availability (even on the South Coast), we started assessing the worth of the journey. This year we have already done more engine hours than last year, and the "season" is only halfway through.

Terry

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[Happy1]

Terry, your thinking is similar to mine, and your figures seem to have the 'feel good factor' of running at £12.50 per hour. I think the answer is to write off the initial cost of the boat and smile as you fill with diesel /forums/images/icons/wink.gif What is interesting is that whatever way I do my calculations, it seems that I could convince myself that any of the combinations are correct, so is there something about boating that lets you deceive your mind. I just think it is scary how this can happen, funny thing is SWMBO doesn't have the same problem /forums/images/icons/laugh.gif she can see straight through the carefuly massaged figures that have convinced me that the choice I really want is the best. Does anyone else suffer from this?

<hr width=100% size=1><font color=purple> "You only see what you recognise, and you only recognise what you know" <font color=purple>

 

[tcm]

I take it you mean "engine hours". We did 250 hours in the first year with this boat, probably will do 120 hours year 2.

If you have midweek access to your boat, and it's trailerable, keep it like that perhaps. With some qualifications you can charter abroad too.

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[Deleted User YDKXO]

Since you analyse everything to death, I'm surprised you have'nt considered other factors in favour of diesel. Apart from the obvious one of fuel cost (the red diesel concession is likely to remain for several years yet), consider these
Economy - diesel engines consume less fuel than petrol engines and therefore your range will be greater
Availability - marine diesel is far more widely available than marine petrol
Safety - diesel is far less flammable than petrol
Resale - a diesel boat is always going to be easier to resell
As to hours the average is supposed to be 100hrs per year

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[mainshiptom]

Pete

I have a heavy slow boat with twin diesel but big tanks so get the diesel Cheap around 20p a liter but also own a smallish rib for this quick buzz of speed an burn some petrol, I tow the rib to most places if its come ! And also sometime just go out on the rib as a laugh !

I find that as a really good option,

My engine hours are roughly 60 hours per annum which would work out at over 100 pounds for an hour engine running but to be honest we spend more time on the boat with the engines switched off !

Tom

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