28' sail cat

No argument from me, just stating fact

H 80 Divynycell
http://www.diabgroup.com/europe/products/e_prods_2.html

Corecell
http://www.gurit.com/sector_introdu...recell%99+-+Structural+Core+Materials+from+SP

Are the only ones I would use, but usually you need more glass on a foam core compared to timber as the core has no inherent strength

 

Thank you for the quick response. I was hoping to get a cheap alternative... But I will probably stick to strip planking (if I go for the rounded knuckle). It looks so much better than the hard chined one, and better aerodynamics too. I was reading somewhere that the smaller the wind resistance of the hull the smaller the angle to sail upwind... and it really makes sense.

A small help to upwind performance also seems to be the shifting daggerboards. It complicates the daggerboard and case construction a little bit, but it seems to be worth the effort.

 

No I did not.

1. It CAN BE done.
2. I " changed " nothing.
What I said was IF your`e worried about the weight , strip it.


Mihari , you can also build in plywood using simple female mold stations cut to curves at the knuckle

You can fix your plywood panels to the inside of the mold with screws..and strip plank the knuckle sections only.

Would be cheaper than foam.
Cheaper than all strip also.
Maybe quicker too.

You will need to decide for yourself if that knuckle is worth the cost and work.

What is important to you ?
Building a boat like this is a large commitment.
Time , Money , Work.

Personally , I would want to go sailing sooner than later , so I would just want to get it done.

Peter Snell`s Eazys seem a good compromise between build cost and time , and a nice boat.
They may " only " be plywood , but they do the job.Lots are out there , and the resale value is not too shabby either.

If you want to build a flashy show pony , well , that`s ok too , but a lot harder on the budget and your time.
If that is your main goal , you go for it , anyone that has that sort of commitment has my respect.

If sailing is the attraction , you have to ask yourself :How much lifetime have I got left ?

I do wish you the best of luck and outcome .

 

Sheet ply " knuckle."