# Thinking of buying a 40 foot boat w/twin Volvo Penta Diesels, and a 190 gal. tank. Does this boat have the range to cross the atlantic?

Fiberglass hull.

### 9 Answers

- Anonymous3 weeks ago
No.

Of course not.

Use some simple mathematics.

Fuel per hour or fuel per mile.

What is the fuel consumption for a sensible cruising speed of your proposed water craft?

New York City, NY to London, England (just a general distance idea) is around 3500 miles.

If you went a mile on a gallon, that would be around 3500 gallons. At $2 per gallon, $7000.

So start from my rough estimate and fine tune it to reality.

In addition, weather on the ocean can be unbelievably bad.

Maybe fly to your destination and rent locally!

- Anonymous1 month ago
Carry on thining whilst the Nurse ups your meds!

No way would that be capable of crossing the pond!

But as your not going to buy a toy boat let alone a forty foot long boat why should we waste our time bothering about it!

- StarryskyLv 71 month ago
Only if you pack it onto a yacht transporting ship. Then you will have plenty of fuel still when the ship gets to the destination port and your boat is unloaded. Might be same or cheaper than all that diesel, even if you could get it mid-trip.

- fuzzyLv 61 month ago
nowhere near enough fuel. Consumption on a boat is measured in gallons/hour. (That's severaL gallons/hour minimum) At economical cruising speed (ie furthest distance travelled/gllon) you'll probably get 12 miles & use (say) 3 gallons each (being very kind) your 190 gallons give a run time of 30 hours ie a distance of 360 miles. How wide is the Atlantic?

Look up the specs on the manufacturer's web site for the hull you're thinking of & the engines - do your own arithmetic with some real figures.

THIS is why all smallish trans ocean vessels are primarily sail powered.

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- Anonymous1 month ago
That would depend if your boat has sails too? Without that, no.

- Anonymous1 month ago
No, not even close, but you haven't provided enough information. Inboard Volvo Penta dieselscome in sizes ranging from 110 hp to about 600 hp each. Different hull designs have different "best range" speeds and we have no data about the boat in question. .

.

You can roughly calculate the range by multiplying the combined horsepower of both engines by 0.4 and dividing by 7.2 to get a rough fuel burn in gallons per hour. For example, let's say the boat has twin 150-hp diesels, or 300 hp total. At top speed, the numbers are GPH = (0.4 x 300)/ 7.2 = 120/7.2 = 16.6 GPH. Divide 190 gallons by that and you've only got 11.4 hours of fuel.

.

Guessing a speed of no better than 14 knots, that's a range of only 160 miles. Even at 1/3 throttle in displacement motoring at 5 knots burning 5.5 gph that's 34 hours of fuel, giving a range of 170 miles which would barely get you from Miami to the Bahamas . And that's assuming calm seas and no wind.

.

Plug in your own numbers and you'll see that you're dreaming.

- Ian KLv 71 month ago
Let's figure she burns 25 gallons per hour...

That gives you 7.6 hours runtime with zero reserve.

Which means that unless the boat does 455 mph, you aren't making it ;).

- Judy and CharlieLv 71 month ago
Probably not. Diesels guzzle a lot of gas and you have two of them.

Depending on the diesel engines and what size each is, you can estimate using only one motor on your journey and not both at the same time.

But if you are considering buying this, why not ask the seller about how far she goes on a tank of gas. The seller should tell you that.

And how long is this voyage across the Atlantic? Are you going from Greenland to Ireland?

You have some plans to make. How many sea miles do you need on that one tank of gas and what kind of sea miles does each engine get to the gallon of gas?