Hey everyone, we are within a week of starting our second flats boat build and after the great response we got from the last flats boat build we figured we would start a build thread on this one as well. This boat will be a little bigger at 19' with an 8' beam but we will be using a lot of light weight composite materials to keep the weight way down. The complete hull, bulkheads, sole, deck, console, and much more will be built using a divinycell core rather than the wood core we use in our traditional cold molded builds. Other than size, this boat will hold a lot of similarities to the 17' be built. It will have a custom console with custom switch panels, custom poling platform, pop up cleats, extensive LED lighting package, carbon fiber push pole, Atlas jack plate, Garmin Electronics, Fusion Stereo, etc. We will also be going with a real teak floor and toe rail on this build unlike the 17' where we used the synthetic teak. The deck layout will also be a little different this time with both a forward and rear livewell setup. We will also have some great dry storage incorporated as well as a nice big access area to the bilge like the last boat had.
We received a lot of great feedback on the last build and also had a lot of great ideas and thoughts thrown out there as well. Our purpose in building a "larger than normal" flats boat is to try to make it a little more comfortable for three people and have the option to occasionally take a fourth angler. At the same time, keeping it light without compromising the ride will be top priority. Through out the build we would love to get feedback from people about what you would like to see as far as livewell setups, rod holders and storage, deck layouts, electronics placement, etc. Thanks again and we hope you enjoy this build. We will start posting some pictures as soon as the jig goes up in the next few days!
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So, let me get this straight. This one is also going to be cold molded construction, but you guys are utilizing d.cell for the planking in place of wood?
What density and thickness? Whats the plan for a layup schedule over the d.cell?
Has anyone done this before?
You guys rock.
You are correct. What you see here so far is about the extent of wood that will go in the boat, minus the jig obviously. The rest of the boat will be made of composite materials including divinycell like you mentioned. We feel that the structural components like the keel, stringers, chines, etc being built like they are and like you see in traditional cold molded builds is one of the major contributors to the nice solid ride that you get with a cold molded boat. We didn't want to sacrifice the ride that our 17' flats boat had using that process so we duplicated what we feel is the leading contributor and now will build the rest with a bunch of lightweight composite materials.
The hull will be planked with 1/2" divinycell and then have another layer of 1/2" divinycell vacuum bagged on the inside between the rib bands to form a nice flat and smooth surface. As far as lamination schedules, we are not there yet. We are still contemplating between glass, Kevlar, or carbon and that decision will hinge the laminations. Either way we will still continue to strictly use epoxy resins on the boat and no polyester or vinyl ester resins. Thanks for your interest!
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Any resin between the sandwiched sheets of d.cell? What density is the d.cell y'all are using...H80?
Any concerns with the different coefficiencies of the two core materials relating to transferring stresses on the transom?
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so you're gonna do something like knee braces on the interior of the transom then?
Look forward to seeing what you guys choose for your layup schedule...Actually, I look forward to the whole 9 yards
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"Prediction is very difficult, especially if it's about the future." Niels Bohr
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Tonight we routed our recess for the trim tabs and planked the sides. Spray rails next then glass!!
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1982Mako: The green is H80 divinycell and the light gray is H100 divinycell (different density), the drank gray area for the jack plate is coosa, which is a high density, fiberglass reinforced, polyurethane foam.
I'm sure the OP can go into greater detail than me.
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We were able to make some more progress over the weekend. We glassed the entire boat with two layers of 1708 biaxial glass and peal ply. We also started the fairing process using alexseal products. We dry fit the spray rails and should have them on and glassed in the next few days.
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