Ocean crossing in a 25' cruiser

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Gushter

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Dears,

Question for the forum. Is it possible to cross the Atlantic, 3,000 nm, in a small, diesel powered cruiser such as the Jeanneau Leader 805 with the proper modifications and an acceptable level of risk? I understand it is an unusual idea, not the typical experience and there are many risks involved. I have plenty of sailing experience, incl. two Newport to Bermuda races (as crew but in the racing class) and I have some RIB experience in heavy seas (in the Bristol channel, RNLI). We are just talking about something we want to do and say we have done it, then go back to our office jobs. It is partly motivated by the experience, partly by the lack of time to sail across.

The basics, we can take care of: single diesel for efficiency, 2nd small outboard for backup, other safety, dry food, shake in of the boat, etc. We believe we can handle slamming the waves for a week but we will do our best to choose a good weather window, say January 2014 from the Azores and we plan to complete the crossing in 8-10 days.

Now, the tough question: We expect to make 2.5 nmpg @ 20 knots (the boat can do in excess of 35 knots) but if there are significant waves, it would be less. On the other hand, there is always the option to drop to hull speed and extend the voyage, food permitting. Still, we estimate we need around 1,200 gallons of diesel or around 8,500 lbs. The boat dry weight is 6,000 lbs and max weight is around 10,000 lbs. Thus, when we start, we expect to be at around 15,000 lbs at least or 50% above the recommended limit. It will look like a semi-submersible in the beginning. I estimate the design waterline will be 7-8" below the water.

The engine power is enough to maintain the target speed but probably not as efficiently. We have found enough storage space to fit the fuel (aft cabin will be a steel tank, windlass area, cockpit, etc.) but it will be quite messy. The other option is just to build a torpedo like steel tank that we tow behind the boat and then just drop in the ocean but it may be tricky to refuel in bad weather. One unexpected benefit of storing the fuel inside is that the boat will become more or less un-sinkable.

Could it be done? Let's discuss how to make it happen and not why the idea is silly... The key parameters important to us are: we want to use the boat as a weekend boat afterwards, so while we are open to getting a bigger boat, it is not justifiable given the intended use; money is not so much of an issue but time is critical, safety is important but we are not looking at Nordhavn level of comfort or safety. We are willing to take reasonable risks.

Thank you,
Gushter
 
Dears,

Question for the forum. Is it possible to cross the Atlantic, 3,000 nm, in a small, diesel powered cruiser such as the Jeanneau Leader 805 with the proper modifications and an acceptable level of risk? I understand it is an unusual idea, not the typical experience and there are many risks involved. I have plenty of sailing experience, incl. two Newport to Bermuda races (as crew but in the racing class) and I have some RIB experience in heavy seas (in the Bristol channel, RNLI). We are just talking about something we want to do and say we have done it, then go back to our office jobs. It is partly motivated by the experience, partly by the lack of time to sail across.

The basics, we can take care of: single diesel for efficiency, 2nd small outboard for backup, other safety, dry food, shake in of the boat, etc. We believe we can handle slamming the waves for a week but we will do our best to choose a good weather window, say January 2014 from the Azores and we plan to complete the crossing in 8-10 days.

Now, the tough question: We expect to make 2.5 nmpg @ 20 knots (the boat can do in excess of 35 knots) but if there are significant waves, it would be less. On the other hand, there is always the option to drop to hull speed and extend the voyage, food permitting. Still, we estimate we need around 1,200 gallons of diesel or around 8,500 lbs. The boat dry weight is 6,000 lbs and max weight is around 10,000 lbs. Thus, when we start, we expect to be at around 15,000 lbs at least or 50% above the recommended limit. It will look like a semi-submersible in the beginning. I estimate the design waterline will be 7-8" below the water.

The engine power is enough to maintain the target speed but probably not as efficiently. We have found enough storage space to fit the fuel (aft cabin will be a steel tank, windlass area, cockpit, etc.) but it will be quite messy. The other option is just to build a torpedo like steel tank that we tow behind the boat and then just drop in the ocean but it may be tricky to refuel in bad weather. One unexpected benefit of storing the fuel inside is that the boat will become more or less un-sinkable.

Could it be done? Let's discuss how to make it happen and not why the idea is silly... The key parameters important to us are: we want to use the boat as a weekend boat afterwards, so while we are open to getting a bigger boat, it is not justifiable given the intended use; money is not so much of an issue but time is critical, safety is important but we are not looking at Nordhavn level of comfort or safety. We are willing to take reasonable risks.

Thank you,
Gushter

Would you use a diesel outboard?
 
Could it be done? Let's discuss how to make it happen and not why the idea is silly... The key parameters important to us are: we want to use the boat as a weekend boat afterwards, so while we are open to getting a bigger boat, it is not justifiable given the intended use; money is not so much of an issue but time is critical, safety is important but we are not looking at Nordhavn level of comfort or safety. We are willing to take reasonable risks.

Thank you,
Gushter


No, you will either flood, overturn, and sink because of the fuel overload, or run out of fuel, drift, and die of thirst or starvation.
 
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Take a Sat phone cos there are folks on this forum who think its ok -if you call the CG ,so they will send the RNLI to tow you in .
Even in flat calm, fine weather no risk to life conditions

I have a feeling you do not need to exaggerate your degree of difficulty
 
I think this is a bad idea. You simply need a bigger boat I'm afraid.

You are overloading such a small vessel by such a large amount I don't think you will get very far. You say you will be able to do 20knots, how can you possibly do that with all that extra weight and having a greater draught.

You said that you are going to store the fuel in the aft cabin and windlass area. Have you not thought about how this will affect the stability of your vessel and the trim that will develop. If your boat has a maximum weight of 10,000 and you are adding another 5,000lb how do you think the hull will stand up to carrying that weight on the Atlantic at 20 knots!

I hope you are joking btw, there is no RNLI in the middle of the Atlantic.
 
Merry Fisher 805 805 805
There's Klingons on the Starboard side starboard side starboard side
But Not as We know it Jim Not as we know it Jim
We Come In Peace we Come in Peace We come in peace
Shoot to kill shoot to kill shoot to kill
Why Jim he is just an 805 , 805, 805?
But as not as we know not as we know it?
Theres Klingons on the starboard bow starboard bow starboard bow
It's Life Jim but not as we know it
It's an 805 Jim but not as we know it
Shoot to kill shoot to kill
(With deference to Wiiliam Shakster?)
There's Klingons on the starboard bow starboard bow starboard bow
Merry Fisher 805 , 805 , 805?
Hellow, Hellow
I here you on Channel 16 this is the Coastgaured
Erm-- you are goin across the Atlantic?
In an 805?
Well, fair enough
:eek:;):D:D:D:D
 
It is a Newbie Mariner,
And he stoppeth on Forum three.
'By thy long grey beard and glittering eye,
Now wherefore stopp'st thou me?

The Forum's doors are opened wide,
And we are next of kin;
The guests are met, the feast is set:
May'st hear the merry din.'

He holds him with his skinny hand,
'There was a Jeanneau Leader 805 with a fuel capacity of 5500 Litres: it crossed the Atlantic', quoth he.
'Hold off! unhand me, grey-beard loon!'
Eftsoons his hand dropt he.

He holds him with his glittering eye—
The Forumite stood still,
And listens like a three years' child:
The Newbie hath his will.
 
I wouldn't step foot on the boat. You would undoubtedly fall apart and die.

For long haul you need to think in terms of most efficient displacement speed. This reduces your biggest challenge fuel. It takes longer but food is much lighter than fuel. You make water as you go.

Look for the Elling e4 trip across the Atlantic. 3 boats, all with 30hp wing engines in addition to the main lump.

If you want to cross the Atlantic on a boat then make your way to Southampton and hop on board a cruise ship.

Henry :)
 
I think you're all a bunch of kill-joys and cynics - I was looking forward to one day crossing the North Sea and visiting the Fjords in our 14' Fletcher... :p

Seriously; I know people have crossed the Atlantic in all sorts, but a boat that overloaded seems like a guaranteed disaster to me and I wouldn't contemplate the channel in it on a calm day let alone a F4+ which you ARE going to encounter in the Atlantic! The size of boat would be a challenge not overloaded. 20kts also seems very optimistic and 6-10kts would be my bet for 80% of the trip - if you get that far!
 
Really there is nothing to say that you couldn't cross the Atlantic in that type of vessel. However, you can't overload the boat in that manner as you won't make it past the harbour wall. If you had a mothership to give you a top up of fuel as you went then perhaps it could become a realistic possibility. There are many reasons that overloading is bad, there are even more reasons why overloading with fuel is worse. As you use the fuel the swell of the sea will cause the the fuel to start to move about. This free surface effect will induce some serious rolling. To combat this you would have to baffle your tanks which of course would reduce your fuel capacity more.
If there is a speed at which you could travel where by the fuel you could carry in standard fit would be enough to get you between stages then as long as the weather is ok I don't see why it couldn't be done.
Going to sea is always an educated risk, however in this case I think I am a bit to educated to take that risk!
 
Dears,

Question for the forum. Is it possible to cross the Atlantic, 3,000 nm, in a small, diesel powered cruiser such as the Jeanneau Leader 805 with the proper modifications and an acceptable level of risk? I understand it is an unusual idea, not the typical experience and there are many risks involved. I have plenty of sailing experience, incl. two Newport to Bermuda races (as crew but in the racing class) and I have some RIB experience in heavy seas (in the Bristol channel, RNLI). We are just talking about something we want to do and say we have done it, then go back to our office jobs. It is partly motivated by the experience, partly by the lack of time to sail across.

The basics, we can take care of: single diesel for efficiency, 2nd small outboard for backup, other safety, dry food, shake in of the boat, etc. We believe we can handle slamming the waves for a week but we will do our best to choose a good weather window, say January 2014 from the Azores and we plan to complete the crossing in 8-10 days.

Now, the tough question: We expect to make 2.5 nmpg @ 20 knots (the boat can do in excess of 35 knots) but if there are significant waves, it would be less. On the other hand, there is always the option to drop to hull speed and extend the voyage, food permitting. Still, we estimate we need around 1,200 gallons of diesel or around 8,500 lbs. The boat dry weight is 6,000 lbs and max weight is around 10,000 lbs. Thus, when we start, we expect to be at around 15,000 lbs at least or 50% above the recommended limit. It will look like a semi-submersible in the beginning. I estimate the design waterline will be 7-8" below the water.

The engine power is enough to maintain the target speed but probably not as efficiently. We have found enough storage space to fit the fuel (aft cabin will be a steel tank, windlass area, cockpit, etc.) but it will be quite messy. The other option is just to build a torpedo like steel tank that we tow behind the boat and then just drop in the ocean but it may be tricky to refuel in bad weather. One unexpected benefit of storing the fuel inside is that the boat will become more or less un-sinkable.

Could it be done? Let's discuss how to make it happen and not why the idea is silly... The key parameters important to us are: we want to use the boat as a weekend boat afterwards, so while we are open to getting a bigger boat, it is not justifiable given the intended use; money is not so much of an issue but time is critical, safety is important but we are not looking at Nordhavn level of comfort or safety. We are willing to take reasonable risks.

Thank you,
Gushter

Have you crossed the Atlantic, in any small boat yet?
 
Take less fuel and a kitesurf kite.

Whenever the wind is good, get the kite out and switch off the motor.

(This may require practice).
 
Take less fuel and a kitesurf kite.

Whenever the wind is good, get the kite out and switch off the motor.

Take the next logical step - put some kind of pole in the middle of the boat, and hang some big pieces of cloth from it :D

Lots of 25' sailing boats have crossed the Atlantic, not many motorboats that size.

Actually, wasn't there that crazy Japanese guy who motored from Switzerland (via canals!) to New York in a tiny boat with a 2.5hp Tohatsu on the back?

Pete
 
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