Composite replacement of a edge glued strip planker

Maybe use the kauri to build a new hull from scratch?
You have the rig etc and many of the internal parts(Joinery etc) could be updated and fitted to the new hull.
You already have the Kauri so perhaps this is the cheapest option?

 

Hi tactic....Go Otago, 'bout time!
Southlands turn next?

"Maybe use the kauri to build a new hull from scratch?"

I build with timber all day.Don't think I have the time.
Glass has got to be quicker and lighter to boot,with better resale.
(Still, not great for Stewarts) Just don't want to make any more mistakes.
I am costing it up, both time and materials.
Currently I am pooring over the ABSS (america bureau of shipping specs for
yachts) as I would like to go epoxy/quadraxial.(glass balsa glass) Foam below
the waterline. Just dont have any idea on the realistic material cost.
Rough guess,34' new at 200k, hull&deck/rest of boat = 20%, .'. Hull&deck=40k
Half labour .'. hull&deck materials = 20k.
What do you think?

 

Hi Roly,
Yes go Otago!
Don't underestimate the value and longevity of a kauri hull.
There are many foam /balsa cored heaps of s#*t around to give those materials a bad name if you look.
I own a 22foot cold moulded kauri hull,its 30 years old and been raced hard its whole life,The hull is as good as the day it was launched.
I wouldn't build the same way as the original was done.Convert your plans to CAD and get the all the station moulds CNC routed on MDF or similar...not much time and money involved there.Strip plank with the Kauri,doesn't have to be perfect.Glass in and out with sutible glass and epoxy.
This is pretty much the easiest and cheapest way to build a boat I know.You will end up with a hull shell that is both strong and resonably light and the timber is sealed from the water.
I work with timber all day as well..so do you .You already have the skill to do this.The work isn't differcult.The CNC moulds take a heap of the work out and really improves the accuracy of the finnished boat. I would even build simple sailing dinghies with CNC frames now instead of drawing and lofting them on the material.
I don't belive that foam or balsa core will be any quicker to build.
My 2 cents
Tactic

 

Regarding cost,
40USD/kg of foam?
10 to 20 USD/kg of glass+epoxy?
So a sandwich with 1kg of foam (12mm x 80kg/m3) + 4kg of glass/epoxy (4x450g glass) will weigh 5kg/m2 and cost 40USD + 4x15USD=100USD/m2.