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Old 26-12-2010, 15:50   #46
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So, beau--are you the guy-- can't remember the thread title.
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Old 26-12-2010, 15:54   #47
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Attached is the latest US navy ship built by Austal (Australian Design) in Mobile Alabama.
Fast, displacement.
So then, Beau, if that naval vessel is just like yours, just ask the Navy where they got their outboard props...

Seems to me that the Navies of the world are quite experienced with fast displacement vessels. They are often called destroyers!

But they are not trying to get by with marginal outboards... they use LOTS of horsepower. Maybe that's where you should be heading???

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Old 26-12-2010, 16:00   #48
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Look guys, I am trying to do thinks a little different Ok.
I have had a lot of support from this forum.
There has only been a couple of negatives comments and that is only because they do not understand or have not followed the concept.

I am not trying to selll anything.

The design is working for what I intended.
Naval architects drew up the structural plans and it was professionally manufactured in Aluminium


I have owned my own boatbuilding business and had 14 boats to date, mono and multi's.
This is a boat i have designed for my cruising use.
All the accom. is in the center hull, the outriggers are for stability only.

It fits inside a 40 ft Shipping container
It has a draft of 1 ft.
It has a large sail for downwind sailing.
It has 2 X 90 tohatsu outboards which I only use one at a time for an economical cruising speed of 8 knots under one motor,
With two motors it has a top speed of 15 knots plus.
The motors lift clear so I can beach.
A range of 500 miles under one motor only (8 knots)

It is designed as a two person live aboard, with large shower/toilet, Fridge and freezer. three 200watt solar panels and a desalinator.

And it cost less the half the cost of a similiar size catamaran.

We plan to leave Australia after the cyclone season heading for Indonesia/phillipines
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Old 26-12-2010, 16:02   #49
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Forum-- Multihull sailboats-- thread title, beau's boat date 2007 beau--you the guy?
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Old 26-12-2010, 18:43   #50
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Followed the concept?

I thought this started out as a
complaint!
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Old 26-12-2010, 19:34   #51
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Beau,

does your purchase contract say anything in particular about dealer supplied props to match the outboards to the boat?
does your warranty say anything about re-propping to allow the engine to operate at proper RPM?
I'm following you on this, it's a simple concept. In small diesels, no matter size of boat, a 2 cyl engine should be able to acheive max rpm in gear. Even if that involves pushing the QE II at .025knots.
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Old 26-12-2010, 19:36   #52
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Beau want's his Tohatsu dealer to give him a Chevy part and cover it under warranty
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Old 26-12-2010, 20:52   #53
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Beau want's his Tohatsu dealer to give him a Chevy part and cover it under warranty

I'm torn here, if the dealer did the install and the recomendation of the engine based on veiwing the vessel.........do we have all the information?
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Old 26-12-2010, 21:26   #54
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I'm torn here, if the dealer did the install and the recomendation of the engine based on veiwing the vessel.........do we have all the information?
i don't think so
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Old 26-12-2010, 22:11   #55
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I looked at the picture.....looks like a homebuilt contraption.

I enquired as to the make....no answer
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Old 26-12-2010, 22:23   #56
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You should have gone for the High Thrust Yamaha outboards, used a lot down here to push Salmon Farm barges around, made for diplacement situations, proven to be very reliable, come in 30, 60 and 100hp I think
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