Hi,

Suppose You have a vintage andbuilt pattern plane that has no drawings (anymore) and You want to make a drawing now so it is possibleto build it again now andin future.
I need photos of course, from side, top, underside, front, rear etc.

But how is the root and tip airfoil best and easiest made, assuming you have access to the airplane? Same goes for the stab root and tip airfoil. And fuselage outside shape.

My plan is to use high resolution photos taken from some good distanceof the fuselage side, top and underside and then load it into a CAD program and resize it to known measured lengths. Same procedure with wing and stab. I have access to whole Autodesk arsenal of CAD software so it should be possible to get reasonable result.

But best method to get wing root and tip airfoil I have not figured out.

How would You do to get as exact replication of the actual model into a drawing with reasonable effort?

If You are interested it is this model below I plan to make a drawing on, it's name is "Bumling" and it placed 22 (of 60)in F3A World Championship 1971 in Doylestown USA. It flew also in World Championship 1973 in Gorizia Italy. Ihave established contact with the person that flew Bumling in those two World Championship, he has preserved his model in all the years after this. Two photos of Bumlingen below (not so goodquality but that is what I have for the moment). I will get better pictures later.

/Bo