Here is a shot of the forward apron during the dry run. When cutting the sides to shape, I had relied on Rhino (the CAD software I use) to convert the 3D part to a 2D shape, and then added an extra 50mm all round – or so I thought. Because the ply is somewhat tortured each end, I couldn’t treat the side as a developable surface and simply ask Rhino to unroll it – instead I had to use its ‘smash’ command. This is not a command I normally use, so you might have thought I would read the instructions. Perhaps if I had, I would have seen that this does not automatically result in a correct shape in all directions. In this case I lost the curvature at each end, so far from ending up with 50mm spare, I ended up with absolutely nothing at all! It was sheer dumb luck that it was not too short.
The second side followed without incident, though as with the first we had to get it very accurately placed to avoid running out of ply each end.