Thank you for the answer.

For me is difficult to write in English, I=C2=B4m from Brazil. The same way, I´m not even an amateur in kayak construction, but trying is the best way, I think. I decided to begin construction after I did an ocean kayaking course, so I´m really a beginner. You wrote:

"If I felt I had to do a model, I'd look around for some very cheap or even
free used sheets of wall paneling and do a 1/2 or full size model with that..."

Maybe I´ll try to begin with a 1/2 size model, as my brother suggested
too. In this case, I´ll have to unite plywood sheets the same way if I had to built the full size kayak, right? One detail I´m thinking at this moment: the ramp created to united the plywood sheets. Can I handle it using a jig saw? Is this a very special part of the job or it is more scaring as it appears?

PS - I live in the countryside of the state of São Paulo. There is no sea, no ocean, only little artificial lakes. The contacts I´ve been maintaining are only by internet and for me read books and take data from paper to reality is the main job.

: Andre,
: I've never worked with a paper model, but think that the paper may be part of
: the problem - it's very difficult to get things exactly to scale, when the
: medium is so flexible and small errors in layout or cutting can be
: exaggerated. In s&g construction, the 'magic' is in the curves cut into
: the panels - when the hull or deck is laced up, the panels are pulled
: together and the complementary curves match up. I'm always amazed at how
: easily it all comes together, assuming - and this is important - that the
: lofting from a table of offsets or the layout from patterns has been done
: accurately. If I felt I had to do a model, I'd look around for some very
: cheap or even free used sheets of wall paneling and do a 1/2 or full size
: model with that...