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Old 09-01-2012, 17:25   #61
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Re: Powerboat Circumnavigation Possible ?

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Originally Posted by boatpoker View Post
Sorry if someone has already mentioned this, it was done 35yrs ago by Robert Beebe in a single engine, 50' wooden powerboat named Passagemaker. Google those details and you'll get lots of hits
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Beebe's famed Passagemaker for sale

Before he died in 1988, Robert Beebe designed more than 150 vessels, none more famed than his 67th design which he built for himself and named Passagemaker.

The voyages Beebe made with Passagemaker proved his theory that the oceans of the world could be explored in a proper powerboat with greater comfort and dispatch than in a sailboat. The book Beebe wrote—Voyaging Under Power—launched the modern-day trawler yacht era and still serves as its bible today.
Famed Passagemaker for sale on Trawlers & Trawlering
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Old 10-01-2012, 10:15   #62
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Re: Powerboat Circumnavigation Possible ?

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+1 Said and done.
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Old 10-01-2012, 13:25   #63
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Re: Powerboat Circumnavigation Possible ?

I think it is doable.

I think one of the big elements will be fuel costs and these are driven by: speed, displacement and shape of the hull(s). Thus, I would go 'slow' in a big light cat and spend the balance on drinks and fun.

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Old 10-01-2012, 18:01   #64
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Re: Powerboat Circumnavigation Possible ?

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I think it is doable.

I think one of the big elements will be fuel costs and these are driven by: speed, displacement and shape of the hull(s). Thus, I would go 'slow' in a big light cat and spend the balance on drinks and fun.

b.
Sounds exactly like cat-man-do only his slow will be faster than most mono sail vessels.
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Old 11-01-2012, 13:38   #65
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Re: Powerboat Circumnavigation Possible ?

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Sounds exactly like cat-man-do only his slow will be faster than most mono sail vessels.
I bet it will.

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Old 01-09-2012, 18:49   #66
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Re: Powerboat Circumnavigation Possible ?

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Quote from Eric on a Nordhavn 43

On a rebuilt fishing boat, 63', 70 tons, we carry 2000 gallons of fresh water, a 20k Northernlights genset, a 10 k backup, a FULL size washer dryer, a full size kitchen with commercial 6 burner stove, 2 bay deep SS sink, and SS preptables, 7 cu ft freezer and 7 cu ft refer, a 5 ton AC unit, a full 36" by 36" shower stall in a standard size bathroom, and about 1,000 sq ft of living space with 8' ceilings and 1,000 sq ft of deck space.
We looked at a Nordhavn when we were boat shopping and they are most certainly luxurious and comfortable, but for us just too small to live on as a home. The one we were looking at was 40' at 350k, so it was affordable. We had to build our boat for a year and a half and ended spending maybe 100k less. I really like the size and heft of a large steel vessel.
Good on you Lorenzo, I'm thinking buying a fishing boat (A Trawler but not as big as yours) and converting it to my needs is the way to go.
How many hands do you need to safely berth your boat in a mariena and what were the all-up costs for your boat?
I, and others I'm sure, would like to see a few/lot of pictures of your trawler, if you have them, before and after pictures would be good

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Old 02-09-2012, 08:15   #67
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Chaco out Lorenzo's blog.

http://lorenzoscow.blogspot.com/2008_04_01_archive.html

Normally it is just him and his wife, no help needed.


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Old 02-09-2012, 08:29   #68
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Re: Powerboat Circumnavigation Possible ?

Wow, love Strathbelle! How's the rebuild coming along? Is this is the oldest boat on CF?
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Old 02-09-2012, 08:43   #69
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Thanks, she is coming along very, very slow.

I think she is probably the oldest on cf.
At 85 ft I think she could be the longest.
Drawing 8.5 ft she could be the deepest.
The 62"x57"x5 blade prop is probably the largest as well.

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Old 28-09-2012, 11:25   #70
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Re: Powerboat Circumnavigation Possible ?

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Motoring around the world is quite an accomplishment, and the Nordhaven is a great boat for doing it. That being said, you could have bought the Hylas and motored around the world, never putting the sails up, and using half the fuel at the same speed.

I'm shopping for powerboats and can't believe how inefficient their hull shapes are compared to sailboats under power.
Average cost of mast rigging, winches, furlers, sails, spi, cleats, etc.. for a 48ft 150 000 $.
Cost of fuel (here in South Africa) 1,3 $ per liter thus with 150000/1.3= 115 384 ltrs.
Consumption passagemakerlite: 4,9 ltr/hr (1,3 US gallon) at 6,5 knots thus about 1 ltr/mile (0,26 US gallon) or 115 384 miles before I could have got any economical advantage of a sail rig. By then of course there would not be much left of my sails or rigging.

The most expensive way from A to B is with free energy.

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Old 28-09-2012, 21:17   #71
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Re: Powerboat Circumnavigation Possible ?

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Originally Posted by Ataraxia View Post
Average cost of mast rigging, winches, furlers, sails, spi, cleats, etc.. for a 48ft 150 000 $.
Cost of fuel (here in South Africa) 1,3 $ per liter thus with 150000/1.3= 115 384 ltrs.
Consumption passagemakerlite: 4,9 ltr/hr (1,3 US gallon) at 6,5 knots thus about 1 ltr/mile (0,26 US gallon) or 115 384 miles before I could have got any economical advantage of a sail rig. By then of course there would not be much left of my sails or rigging.

The most expensive way from A to B is with free energy.

Ataraxia
www.passagemaker.co.za
I like the look of those passagemakerlite/s, the passagemakerlite 39 would suit my needs to a T but alas, I'm not in the market for a new boat, nor do I have the time to build, so I guess I'll keep searching for a suitable older power cruiser.
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Old 29-09-2012, 01:24   #72
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Re: Powerboat Circumnavigation Possible ?

“Start by doing what’s necessary; then do what’s possible; and suddenly you are doing the impossible.”
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Old 29-09-2012, 18:14   #73
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Re: Powerboat Circumnavigation Possible ?

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“Start by doing what’s necessary; then do what’s possible; and suddenly you are doing the impossible.”
I fully agree with you. After reading your blog: www.passagemaker.co.za I see you are doing what you preach. May I send you a PM with some specs on a boat I'm looking at?

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Old 01-10-2012, 01:33   #74
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Re: Powerboat Circumnavigation Possible ?

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I fully agree with you. After reading your blog: www.passagemaker.co.za I see you are doing what you preach. May I send you a PM with some specs on a boat I'm looking at?

Bill
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Sure please do so.
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Old 31-12-2012, 16:32   #75
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Re: Powerboat Circumnavigation Possible ?

I have enjoyed reading this thread from the beginning. I landed on it from doing a search on Nordhavn because some friends just arrived in Panama today on their 43'.

On to a different concept, diesel-electric-solar hybrid.

If you don't mind a slow passage at 3.9 kt, then the 6 kw of panels will allow it with no consumption of diesel. There is a pair of ultra efficient Steyr 75 hp diesels for a more conventional speed.
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