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darbyshire

Short Shot side deck beam positions?

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Instructions call for 2 front side deck beams of 4'-6".  Cannot find specifics on where to position them.  Do they rest on top of the laminated beam? Do they extend under the coaming? Does coaming rest on the side deck beams? Or the center deck beam? Do the side beams need to be trimmed shorter?

 

Could similarly use guidance on the rear deck side beams.

 

It would be awesome if there were a video walk around of the completed frame... I've been trying to figure it out from glimpses of different boats in different videos.

 

Thanks.

IMG-0945.JPG

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I am TDY so not where I can get to my photos but at the front I cut them just long enough that they end below the skin. Stretch some t-shirt material over the frame and you see where the beam looses contact with the skin. I cut it just past that. 

Yes is goes on top of the lam beam and it is fitted the same way. But it is hard to use the t-shirt method on the coaming.

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Thanks.  I understand the instructions for the front/bow end . 

 

But does coaming rest on the two side beams? The book mentions this for Curlew and Vardo, but I can't figure out how that works here, as it seems to lift the front of coaming really high above laminated beam.  But if the side beams do NOT extend under coaming, their ends will definitely leave hump under fabric between gunnels and coaming.  The most logical solution to me is to notch the side beams and terminate them flush with laminated beam, letting coaming rest on center deck beam. Appreciate the help.

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After much jiggering about it looks like I have 2 options.

 

One is to put all three deck beams ON TOP of laminated beam.  If I do this, I can adjust positions so that coaming rests on all three beam ends.  This puts coaming at a pretty jaunty angle, and center deck beam will have a good bit of curve as it descends toward next frame. Adds a bit of leg room.

 

Alternate is to notch all three beams to tuck under and terminate at the laminated beam.  Coaming would then rest atop the laminated beam at center point.

 

I'm finding it really hard to see how center beam could notch under while side beams go over the laminated beam, especially when sewing seam at coaming.

 

Which is the way to go?

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Coaming restson ONLY on the lam beam and the rear of the boat. It does not tough the side beams. It fits just like those shown in the manual.

Side beams go under the lam beam and are notched to fit. There is your problem.  

 

Is that a kit I made? If so it explains some of the confusion.

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On the plans I included a diagram showing the beam layout and just realized I didn't put it on my shop copy.  I toss it in the box with the kit.  I will get that added to the shop copy so this doesn't come up again. 

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Thanks.  Having now installed them, I suggest you might consider making the notches for the side beams (in the frame in front of the laminated beam) angled a bit outward toward gunnels (rather than vertical) so that where the side beam meets the laminated beam it is perpendicular, for better joint. 

 

I also cut the forward ends of the beams flush with the frame it meets and pegged with dowel through frame.

 

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