What we are after is the ease and low cost of carvel planking but the potection of epoxy. I have quite a bit of sailing experience and an engineering background. The scantlings aren't the problem so much as the technique for applying the planks. Scantling wise, we need 2.25" of planking. We could do this with dimensional lumber.
We'd like a 48' motor sailer. We like how fast and inexpensive to build the Bolger advanced sharpies are and we like the Benford dories. Either one could take some seriously WIDE planks and be planked quickly because of the flat sides. The expense of building up layers of ply is getting to us, however, and we can't find the technique for using planks and epoxy. The scantlings are easy to find in many books, but the technique isn't.
So, what is the technique? Do we need to coat each plank and the frames with epoxy first or can we just epoxy-glue and coat it all later? Do we use fillets like we would with ply? Do we need fiberglass inside and out? What are the scantling rules for fiberglass?
Happy to provide more info if it is needed. This is a one-off design based on scantling rules and what I have learned over the years of motor and sail boats.
Thanks so much!
We'd like a 48' motor sailer. We like how fast and inexpensive to build the Bolger advanced sharpies are and we like the Benford dories. Either one could take some seriously WIDE planks and be planked quickly because of the flat sides. The expense of building up layers of ply is getting to us, however, and we can't find the technique for using planks and epoxy. The scantlings are easy to find in many books, but the technique isn't.
So, what is the technique? Do we need to coat each plank and the frames with epoxy first or can we just epoxy-glue and coat it all later? Do we use fillets like we would with ply? Do we need fiberglass inside and out? What are the scantling rules for fiberglass?
Happy to provide more info if it is needed. This is a one-off design based on scantling rules and what I have learned over the years of motor and sail boats.
Thanks so much!