Wooden Hull RIB

Christopher · 24 August 2007, 16:49

We have just finished putting tubes on a wooden hull RIB. The builder of the hull has produced a real masterpiece and it is made with Cedar Strip and Carbon/Kevlar and a finish of Brazilian Mahogany with a clear Awlgrip finish on the hull. Burma Teak decks. He claims that the hull is four times stronger than GRP from tests carried out by Southampton Uni.

Limey Linda · 24 August 2007, 17:20

I have a good hunch on who built that hull. They are old friends of mine.
Care to tell us who? Outstanding job.

T.

Cypman · 24 August 2007, 17:47

Chris

Not a word anybody on the eastern side of the Atlantic Ocean should normally use but that hull is awesome. Reminds me of the beautiful lightweight racing sailing dinghies that were lovingly made in the seventies, God am I getting old!!! It would be great if we get to see the completed boat.

BogMonster · 24 August 2007, 17:52

Very smart

That third photo is really odd, when you first look at it, it looks like the boat is about 100 metres long...

jwalker · 24 August 2007, 18:22

Very good. I do like that. I had plans to do a similar job a few years ago; it's nice to see it has been done and I'll be interested to hear about it's performance on the water.

Christopher · 27 August 2007, 18:25

Quote:

Originally Posted by Limey Linda

I have a good hunch on who built that hull. They are old friends of mine.
Care to tell us who? Outstanding job.

T.

Not certain that the builder would want me to publish his name, but will check with him. However, will send you a PM

codprawn · 28 August 2007, 03:23

Nothing wrong with wood - still used on F1 powerboats. Absorbs vibration and shock better than anything!!!

Bigmuz7 · 28 August 2007, 10:54

That looks amazing, but I bet it weighs a fair bit. Also I'd be interested to see how the transom is joined with the deck/hull without glass for support

Matt · 28 August 2007, 14:31

It shouldn't. Correctly used wood is incredibly strong for it's weight - it's a natural unidirectional composite.

Here you go.
3 tonnes half laden - on a par with a glass boat. http://www.vandamwoodcraft.com/frames/alphaz.html
http://www.vandamwoodcraft.com/frames/zgallery1.html

And here: http://www.glen-l.com/designs/inboard/bandido.html
Wooden weight within the GRP range. Don't kid yerself that a typical glass boat falls within the lightest possible range - unless it's exotic materials & vacuum bagged it won't be.

Quote:

Originally Posted by Bigmuz7

...but I bet it weighs a fair bit.

HoveRuss · 28 August 2007, 15:59

A 'Ribiera' - very nice!

fast fred · 28 August 2007, 16:18

ya thats Nice, that MoHog transom is smokin , a 572 with a charger and a number 6 drive, maybe jet drive.

jyasaki · 28 August 2007, 16:24

Man, that is pretty. Make sure you post pics when the build is complete.

jky

CJL · 29 August 2007, 12:57

Seems a shame to drill holes through that transom, its gorgeous!

What are you going to do for a console? A matching bespoke wooden job must be order of the day??

Chris

Christopher · 29 August 2007, 17:05

Quote:

Originally Posted by Bigmuz7

That looks amazing, but I bet it weighs a fair bit.

Having checked with the builder I quote from his response:

One comment I saw on ribnet I would like to answer, is that the boat hull is LIGHTER than fibreglass, [and 4x stronger] (the actual hull when I turned it over - by hand - was only about 175 to 200 kilos that is around 3.5 to 4cwt in old English and I could pick up the bow with one hand easily above my head.) The whole boat with teak decks, ss/tank and bulkheads weighed approx 650 kilos (approx 13 cwt)

The builders web site is www.cachetmarine.com, and he can be contacted through the site for anyone interested.

Bigmuz7 · 29 August 2007, 20:43

Quote:

Originally Posted by Christopher

the boat hull is LIGHTER than fibreglass, [and 4x stronger] (the actual hull when I turned it over - by hand - was only about 175 to 200 kilos that is around 3.5 to 4cwt in old English and I could pick up the bow with one hand easily above my head.) The whole boat with teak decks, ss/tank and bulkheads weighed approx 650 kilos (approx 13 cwt)[/I]

Ok that's impressive factually, and it should mean it will require a much smaller engine then, but, what about the weight after fit out ? lb for lb, unless its grp (which might not be so silly, since some mfrs put in a wood floor on a grp hull, and that looks good IMO) the advantage may be lost & my main concern is about the loading on the transom, because as strong as I know wood is, joining it at such a massively loaded area and making it reliable, cant be easy, with the anticipated pounding it will receive. But it sure looks nice

jyasaki · 30 August 2007, 06:32

Quote:

Originally Posted by Christopher

(the actual hull when I turned it over - by hand - was only about 175 to 200 kilos that is around 3.5 to 4cwt in old English

LOL. You tell em, bud...

jky

Channel Ribs · 30 August 2007, 07:48

Gorgeous!

Cookee · 04 September 2007, 15:06

Quote:

Originally Posted by Christopher

Having checked with the builder I quote from his response:

One comment I saw on ribnet I would like to answer, is that the boat hull is LIGHTER than fibreglass, [and 4x stronger] (the actual hull when I turned it over - by hand - was only about 175 to 200 kilos that is around 3.5 to 4cwt in old English and I could pick up the bow with one hand easily above my head.) The whole boat with teak decks, ss/tank and bulkheads weighed approx 650 kilos (approx 13 cwt)

The builders web site is www.cachetmarine.com, and he can be contacted through the site for anyone interested.

A boat that light will make interesting handling in anything other than flat calm - the advantage is you can build the weight in where you need it!

Matt · 04 September 2007, 15:24

Is that why Chaudrons are faster in the rough?

Cookee · 04 September 2007, 15:52

Quote:

Originally Posted by Matt

Is that why Chaudrons are faster in the rough?