[Spaghetti Man]

I am walking now so I did some measurements and took out my pen and paper.

I could fit the naca 0021 airfoil to the bottom diagram, 60cm wide, 240cm long, 10cm overhang at the front and 40cm overhang at the back.

However the airfoil did not fit well to the above diagram and required stretching. I do not think the airfoil will work quite as well when distorted like this.

How can I improve this design so it is optimally safe and aerodynamically effective?

If I can settle on a design I can make a CAD model and get a quote for cnc routing (if I try to build the mold it'll look like paper mache). I am thinking of using a door rather than cutouts to maximize efficiency.