Finally I will start to find the shapes for some bulkheads. I know that I will want bulkheads at the three points where the deck level changes, so those seem like good ones to start with.
I start by making the inboard profile image visible, since it shows the internal structure. Via the construction menu, I create an offset plane at the point where the forecastle deck drops down to the main deck. It’s 52.7 mm back from the forward perpendicular.
The next thing I need to figure out is the exact placement of the decks and the deck camber. I bring up the inboard profile image. Starting a sketch in the centerline plane, I trace the lines along the underside of the planking on each deck. The lines for the two innermost decks (main deck? and quarter deck?) are very slightly curved. The other two are just straight lines. The sketch continues alone the rabbet and back to the start. I’ll be using this sketch for the false keel laser cut piece. Notches for bulkheads will be added to it later.
The sketching of lines continues with finding intersection points and then sketching fit point splines through those points. Here are the intersection points for the two waterlines, with the waterline planes visible.
Now I’ll create sketches of the various hull curves.
For the topmost line, I will create a curve following one of the bulwark lines on the plan. To ensure correct placement, I create a construction point at the tip of the bow, which will be used as a starting point for the curve. A fit point spline is created in a horizontal plane following the curve as viewed from above.