Lock Crowther 1962 Kraken 25 trimaran build and rebuild log

Lookin' good Corley. It should turn out much lighter than the original.

 

Great to see you're making progress! Can't wait to see her sail.... The boat impressed me from a young age.

 

Looks good! Nice to see ya cracking at it. And you can never have enough clamps! Haha as I'm finishing up some home projects round here everytime my saw is out I whip out some clamp parts. I hunted round for the easiest plans and settled on the kind where you just whip out matching vices that fit on simple cheap metal conduit, and a simple cam wedge cinch. That way they can be big and small as you can make it, can even make them double ended or even a triple. Even came up with my own mod where by I spot weld a compression connection( I know don't breath it in when you do this!) on one end of conduit and after cinch down you can wrench some serious clamping force into the setup. Anyway thanks for the inspiration looking good!


Barry

 

I saw this in smalltrimarans.com, some one is also looking for plans

http://smalltrimarans.com/blog/?p=12412#more-12412

 

I fitted the first section of Oregon gunwale strip over the weekend. I intend to scarph it in situ to another length that will run to the bow settled on an 8 to 1 scarph which should be adequate for this situation.

 

Looking good!


Barry

 

A little update I've set and scarphed both gunnel strips now and trimmed the veneers flush. The inside of the hull has been sanded to remove the epoxy blobs from the molding. The next job is to fit the deck jig and join the hulls on the inside with thickened epoxy and double bias glass.

 

Coming along! After pour what toes together points of two pieces there up front?


Barry

 

The strips actually don't join they are just tapered back from the bow. the deck holds that section together. I'll just laminate some timber in that area and epoxy it together to form a backing for the forestay fitting. I like the look of the sheerline coming to a point there than tapering back down just an aesthetic rather than a practical choice.

 

Makes sense to me! Nice clean edge is always cleaner looking and tends to get snubbed less on things(docks, tree's, other boats!) Just wasn't sure if it was a case of a poured keel still needs a mock up part there or something, or if you were planning a extension of some kind for stay or future prodder or something. Also I wouldn't like the look of it, but thinking as I write, a small front section of keel would offer beach protection. But then so would some metal I suppose.


Barry

 

The original had a bronze strip nailed into the keelson. I wont do that though I'm thinking some sort of low profile sacrificial fiberglass strip glued to the surface of the hull with polyurethane sealer/adhesive that can be removed and replaced when it wears out. The floats don't really need any protection since the main hull is so much deeper.

 

You could always capture some brass inserts in pour? And yeah anything outside that's throw away. Buddy used to just get cheap aluminum angle that was beat flatter to fit canoe for dragging. Aluminm not ideal but he could swap it out every 6 months as cheap as it is

 

The aluminium sounds like a good idea I'm going to use a trolley to move the boat on the beach and certainly wont be beaching hard with this boat.

 

Corley, looks great! You must be starting to get excited?

 

I'm getting excited, I'll do a mockup of the hulls and crossbeams when the main hull is structurally complete. That will be cool