At full speed I wonder how many gallons to the mile.

[Concerto]

Sunseeker launches 100 Yacht in Poole - Marine Industry News

 

[Chiara’s slave]

2600 hp, so the rule of thumb says 260 gallons per hour, 29 knots. Not as bad as I’d have guessed, but so far beyond my pay grade it might as well be powered by a Saturn V.

 

[oldgit]

......and at about £ 1.50 a litre (inc EVA) for marine diesel in the " Med" thats about £5 K an hour ?
Curiously a return flight down there using a few thousand litres of Jet 1 is only £30.00. No VAT on that fuel of course.

 

[Stemar]

My good lady and I often see a lovely house on a busy road and think, If we could afford to live there, we wouldn't. Same thing - If I could afford to sail that, I wouldn't. I find that sort of motorboat utterly fugly.

I wonder who the customers are - Russian oligarchs who've had their willies cut down to size and need something smaller to wave?

 

[LONG_KEELER]

"owners’ private terrace on the sea.”

I've got one of those too. I call it the cockpit lounging area.

 

[Laysula]

2600 hp, so the rule of thumb says 260 gallons per hour, 29 knots. Not as bad as I’d have guessed, but so far beyond my pay grade it might as well be powered by a Saturn V.

And probably a lot more if the bottom is dirty.

 

[Supine Being]

 

[CAPTAIN FANTASTIC]

This is a nice motor yacht if you can afford it. The Med is full of these type of yachts and only a very small minority are Russian oligarchs.

 

[john_morris_uk]

This is a nice motor yacht if you can afford it. The Med is full of these type of yachts and only a very small minority are Russian oligarchs.

Indeed.
(And it’s far too small for an oligarch anyway).

 

[AntarcticPilot]

2600 hp, so the rule of thumb says 260 gallons per hour, 29 knots. Not as bad as I’d have guessed, but so far beyond my pay grade it might as well be powered by a Saturn V.

I guess that Saturn V is about the same mpg. It carries around 600,000 gallons of fuel (not counting oxidizer, to be comparable). It does around 600,000 miles to the moon and back and a few times round the moon. So, it's about a mile a gallon - much the same!

 

[johnalison]

I guess that Saturn V is about the same mpg. It carries around 600,000 gallons of fuel (not counting oxidizer, to be comparable). It does around 600,000 miles to the moon and back and a few times round the moon. So, it's about a mile a gallon - much the same!

Going from #2 the Sunseeker would be doing +/- 9 gallons per mile, but maybe a nought slipped in somewhere.

 

[andy59]

Bear in mind that something that big will probably spend a lot of time at displacement speed quite comfortably and not using anything like the numbers quoted, anyway horrible thing, who would own a stinkpot eh ?

 

[AntarcticPilot]

Going from #2 the Sunseeker would be doing +/- 9 gallons per mile, but maybe a nought slipped in somewhere.

Duh! Missed a 0. So, actually, it's cheaper to run a Saturn V!

 

[john_morris_uk]

Duh! Missed a 0. So, actually, it's cheaper to run a Saturn V!

The capital cost and once only use stings a bit though.

 

[V1701]

For that sort of money I'd have a Nordhavn 96 which is a proper boat and not a toy...

 

[colhel]

For that sort of money I'd have a Nordhavn 96 which is a proper boat and not a toy...

If its not a toy I don't want to it ?

 

[davidej]

2600 hp, so the rule of thumb says 260 gallons per hour, 29 knots. Not as bad as I’d have guessed, but so far beyond my pay grade it might as well be powered by a Saturn V.

I thought that the rule of thumb is one litre per hour per ten hp, not one gallon.

that works for my MD2020 which cruising at about 70% of peak revs uses approx two liters an hour.

 

[penfold]

Duh! Missed a 0. So, actually, it's cheaper to run a Saturn V!

That's unlikely, Saturn V 1st stage burnt ~12 tonnes a second; RP1 is near enough paraffin but LOX is quite pricey.

 

[AntarcticPilot]

That's unlikely, Saturn V 1st stage burnt ~12 tonnes a second; RP1 is near enough paraffin but LOX is quite pricey.

I didn't count oxidizer; if I did I'd have to work out an equivalent for atmospheric oxygen. And I took the fuel volumes from a technical account, so they're about right. Yes, it burnt a lot, but not for very long!

 

[Greemble]

I thought that the rule of thumb is one litre per hour per ten hp, not one gallon.

that works for my MD2020 which cruising at about 70% of peak revs uses approx two liters an hour.

So... around two gallons per mile