I decided to buy a set of Simplex plans for myself to study. The plans are certainly not the easiest to read. I’ve decided to try and plot the frames on a computer.
It’s very frustrating at the lack of detail for some dimensions. The radius at the front and two at the rear of the frame I found very annoying. The centre point of the radii are not indicated, leading to much supposition of the exact location. As I had almost finished plotting out the frame I realised a mistake I had made. The last part of the frame is not square, it’s slightly tapered!