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Dear all Could I ask for your help in understanding how the deck is drawn in small sailboats. I am not exactly sure what or how to ask as my knowledge and understanding of this is very shallow but I ll try. I think I have understood that the camber of the beams is a parabola and that there are many ways that this can be drawn. My main problem though is the deck centreline. The way I understand it, it is essentially a straight line form the stem to the transom, having chosen a crown height at max beam. Due to the deck furniture and the very visible sheer, this straight deck centreline is hidden from view. However, it seems that most decks are truly curved. 1. Is there a rule of how curved the deck centreline can be? 2. If the centreline is curved, what happens to the king plank that needs to be straight? 3. Suppose I draw a slightly curved centreline that pleases the eye and then arrange the beams using the same way to figure out the camber. Is it likely that the deck planks will sit nicely or will a lot of fairing be needed? 4. Is the crown height measured perpendicular to the horizontal level or to the sheer? In the first case the beams will meet the deck planks at an angle and will need fairing but in the second will sit flat. Or is this not an issue to the relatively small rise of the sheer? 5. Is it better to go for a straight centreline or is it better to have a bit of curve? Apologies if I don't make much sense! Vaddoc
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