Hello Crankpin,

It is good to read your reaction, otherswise it feels like a acrobatic show without a safety net.

Like to do the job, but also every solution gives new challenges and insights how to lose the next problem or how to enlarge the accuracy.

After the changes on the construction drawing I consider to do the final measurements again. But in that situation I probably place the construction drawing under the small angle, about 7 degrees, we see the side surface of the fuselage in the crate. I also can copy the curvature of the side surface.
The way to calculate the angle I show you on the picture. These extra corrections gives no complications to do.
I also consider to use my little laser beam and maybe a mask with holes to replace the crate picture.(or holes in the picture himself if I can get a big print-out.)
Another possibility is also probably using a slide projector.
So still a lot of possibilities to enlarge the accuracy.


Second picture is a rev B of the picture of last post.
When I do the job well, I have to project every point in the same/side surface of the fuselage. It also makes the principle more clear.
This does not make the result better, but worse. So this does not change the conclusion!
Cees