Sea Sled madness. It’s in my brain.

I bought a finger jointer bit for my router, and build a simple jig on the wall to hold planks. Screwed a block of wood to the bottom of one of my skill saws so I can rip ⅝ strips from whatever 2* stock I find, after I finger joint the ends. So I can make a couple planks a minute now. I found that using a backing block I can glue the jointed ends and screw the plank to the bulkheads without waiting for the glue to dry. Except at the bow. Curvature is extreme at the bow. No joints forward of station 3.

 

Sounds like you will be going full steam ahead (again) now - excellent!
Do you have any more photos to show us please?

 

Re the twin engine at wide centers,
You can check out Aspen Catamarans, there was a 2 issue story about the owner of Aspen, Larry Graf perhaps? that took one of their boats down the McKenzie River, 1700 kms, in
Pacific Yachting, the engines are 200 hp stbd and about 70 port. Originally the cat came with a single engine and the hulls were asymmetrical. The addition of course gives them a get
home engine

 

200 and 70? That is remarkable! Okay. Maximum spread it is.

 

Cool.
So, how'd the finger jointer work out?

 

It's pretty good actually. More than adequate for planks aft of 7'. There's very little shape once you leave the bows. Fingerjoints keep everything aligned, and the 60oz of glass and epoxy between the inside and outside will tie it all together adequately.

 

So I've learned a few things with the first few planks. With all sections being strictly straight lines, plank alignment is easy enough. But I designed too much twist in the forward sections of the non-tripping chine. Fortunately I can still cut down B1 and B2 easily enough to ease the twist a little. And B4 is 3mm low. Also an easy fix at this stage. I'm 29 years out of practice. But it's coming back.

 

Can you make the strips narrower in that area to accommodate the twist?
It'd be a shame to change the lines of the hull.

Was B4 the station in question, pages back, for being out of alignment?

 

Yes, in my shuffle, I placed it slightly off.

 

It's getting a lot easier. After the first few, they were stiff enough, collectively, to really provide support for ones that came next.

 

Moving forward again.

 

I've tried some planks at the outside edge of the tunnel. The curvature and twist there are too extreme. Planks kept breaking. I'll keep going as far as I can. By then I'll have figured out a workaround. Or more likely, someone on here with experience of the same issue will tell me how to proceed.

 

How wide and thick are the planks that you are using? They do not look very wide at all in the photos above. Would it be possible to make them even more narrow?
Re your curvature and twist being so extreme, did it 'look ok' when you lofted the lines out on the wall? Ie everything was nicely fair there?

 

If I may answer in John's absence, he's ripping 5/8" strips off 2 x 4's, 6's, 10's, 12's... whatever he gets from work.
So, 5/8" x 1 1/2"

 

I had suggested the same thing, narrow them down.
But then realized, this wouldn't really make them that much easier to twist.
I suggested thinning them by half and doubling up with staggered seams.
He's got 30 degrees twist between B2 and B3... or is it B1 and B2...
You can see it in post #33, the first pic.
John: clarification please.