Will you satisfy new emission rules?

Well, on a boat they might as well consider using the black tank content as an additive for the SCR process.... :D
Now, where are the patents experts when you need them? :cool:

I think that is taking the pi55!

On a serious note, engines can only realistically be certified on full load power curve.

However I am pretty sure I could write an algorithm tonight which would recognise engine running on a specific propeller law curve and not full load power curve which engine will NEVER SEE in marine environment allowing it to run an the advanced timing tables.

Gis a job!
 
In jrudge's case, I believe he did a Grand Tour of the Med this year which is why he used 25000 litres of fuel http://www.ybw.com/forums/showthread.php?440405-Trip-Report-Mallorca-Cote-D-Azur-Corsica-Sardina-Menorca-Mallorca&highlight=

To put that into perspective, I've put about 10000 litres into my 63 footer this season and last which I think is much nearer the average for a Med based boat

I assume that your boat has at least 3,000lt tanks, that is roughly 3 fills in a season very economical, so assuming an average of 10lt/nm, that's about 1,000nm and at say 20kt about 50hrs.....on average looking at used boats they seem to have 100hrs per annum. Reasonable use in the Med I would think is maybe 10 weeks, boat out of marina 3 days/week, thats 30 days actual use, 50 hrs would indicate that the boat is only on the move about 1.6hr/day.... that's a trip to the nearest bay and back!

Fuel is good % of the cost of running the boat, but a +60ft mooring, maintenance & depreciation probably takes 70-80% of the real cost, there are plenty of 60ft boats for sale, 7-10 years old selling for about 1/2 the new price (today), so assuming replacing with new it's about £100k pa depreciation (over that period), fuel cost is not really that relevant when considering a new buy, more about the amount of discount!!
 
Trucks have been running SCR since 2006 to say they have been a headache is an understatement!
Early ones (euro4) were quite simple then 2007/8 (euro5) they got more complicated and now euro6 very very complicated.
Cars now seem to be getting the same tech, enjoy:courage:
 
I assume that your boat has at least 3,000lt tanks, that is roughly 3 fills in a season very economical, so assuming an average of 10lt/nm, that's about 1,000nm and at say 20kt about 50hrs.....on average looking at used boats they seem to have 100hrs per annum. Reasonable use in the Med I would think is maybe 10 weeks, boat out of marina 3 days/week, thats 30 days actual use, 50 hrs would indicate that the boat is only on the move about 1.6hr/day.... that's a trip to the nearest bay and back!

Well actually, I tend to fill up 1000-2000 litres at time because it costs me more fuel to carry full tanks around so maybe I'm filling up 6-8 times per season. Then I don't go everywhere at 20kts; in fact very few Med based boats above say 50ft do that. Most people are happy to pootle for a while to save a few Euros in fuel and enjoy the sea. We've been in the Med about 12 yrs now and we consistently do about 40-45 days on board per season of which perhaps 35-40 days are spent at sea. Typically we will do 70-100hrs per season and yes around 1000nm

Fuel is good % of the cost of running the boat, but a +60ft mooring, maintenance & depreciation probably takes 70-80% of the real cost, there are plenty of 60ft boats for sale, 7-10 years old selling for about 1/2 the new price (today), so assuming replacing with new it's about £100k pa depreciation (over that period), fuel cost is not really that relevant when considering a new buy, more about the amount of discount!!

All agreed. Depreciation is by far the biggest cost of boating although having said that most of us buy secondhand boats so the depreciation is going to be a lot less than for a new boat. I don't know what my secondhand 63 footer is going to cost me in depreciation per year but if I were to guess, maybe £30k pa. But depreciation is a cost you don't see on your credit card every month like fuel costs which is probably why there tends to be more focus on fuel cost. As for my other costs, my berthing at the moment costs me less than I spend on fuel and my maintenance costs are about the same as I spend on fuel so actually fuel is my equal second biggest cost. SW Sardinia is a cheap place to moor and maintain a boat!

Now if fuel did go up to more than say £2/litre, then it would become my second biggest cost after depreciation and therefore significant to me. It might not be significant still to a new boat buyer but every new boat needs a string of secondhand buyers to own it after the new buyer has finished with it. And if secondhand boat buyers baulk at the cost of fuelling their boats and baulk at buying them as a result, then new boats can't be sold
 
Fuel is good % of the cost of running the boat, but a +60ft mooring, maintenance & depreciation probably takes 70-80% of the real cost, there are plenty of 60ft boats for sale, 7-10 years old selling for about 1/2 the new price (today), so assuming replacing with new it's about £100k pa depreciation (over that period), fuel cost is not really that relevant when considering a new buy, more about the amount of discount!!

I'm looking at 10 year old boats that are more like 20% of their new cost today (2004 Princess V42 @ £75) but I'm hoping that ongoing depreciation is minimal.

Big discounts on new boats are a false economy these days and as you'll feel it at resale. The only important number is the difference between your purchase and selling price.
 
Big discounts on new boats are a false economy these days and as you'll feel it at resale.
Yes and no. Whats important at least in terms of used values is that every new buyer gets the same discount. If somebody is clever enough to negotiate a big discount and the next bloke is not so clever and only gets a small discount, he's the one that's going to killed the most by depreciation come resale time. This goes back to henryf's thread from a while back. It would be better for all new buyers if the manufacturers just published a realistic pricelist with selling prices that they stuck to rather than an artificial pricelist which is heavily discounted depending on how clever the buyer is at finessing the dealer. I know some people will say thats part of the game but it does leave some less clever buyers disgruntled when it comes to resale time and that does the industry no good in the long run
 
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