The following note came with the German set of plans:

"Correction:

In the blueprint "Minare" is slip in us unfortunately a small mistake, ask we for consideration:

The thereon visibility of the deceit area is in the noses strip area, in which middle extendr drawn, around 12 mm. The drawing should be changed therefore correspondingly de sketch.

The rib outlines are however correct, therefore the width of the wing automatically correctly must fall out in the assembly of the deceit area and/or in the cutting of the Styroporkerns.

Sketch:
"
See the attached jpeg.

I'm not sure of the 11-12 mm difference which the note referes to, I measured the two sets of airfoils on the German plans. The German plans show a foam root and tip airfoil sketch and a built up sketch. Both roots measure approximately 315mm, and the tips 217 mm. The wing planform in which the note refers to measures 324 mm at the root, and 217 at the tip. Canada went metric over twenty years ago. It makes for more precise measurements.

I don't measure a 12 mm difference, but only 9 mm.

So do you split the difference between the root and tip widths for the plan layout or do you take the angle at the trailing edege on the planform. Which in this case is 2 degrees taper on this set of plans.

Does make things any clearer?