I have the downloaded xl plans and am the process of building the rib jig. My downloaded plans printed out in their original form very small, about 1/4 page. I printed the ones for the the rib and made new copies of them at +210% and got what appears to be very close to the correct size. My measurements are 7 1/8 high at the front spar 7 7/8 at the thickest point and 46 3/4 overall length. I am curious as to what some of you have determined the measurements should be.
For a 200 mph wing, we would worry about some dimension differences, for this wing, probably all are within tolerances that might not even be able to be measured.
Much of this would also depend on exactly where your starting and stopping with your measurements. These alone could be a difference of .250"
That being said,
I have 46.227" from aft of the front spar to the aft edge of the wing rib
from nose tip to above aft edge 54.213"
max height if bottom of wing is dead level, 7.716"
of course rounding the above to one decimal is No problem. Results may vary, a few have mentioned that building so that the nose rib, spar and rear (center section) all flow nicely is the real key. I agree.
Best of success