by Darick » Sun Jul 03, 2016 10:04 pm
Yes, I dealt with the same question.. the hole in the rear spar carry through is already 1/4", not 3/16. So I drilled the rear spar up from the existing 3/16 to 1/4 before I started the wing rigging. Then when you rig the rear spar, you line up the 1/4 holes with a bolt (or other 1/4" pin) and transfer that hole location to the rear spar angle (I think that is the name of that piece).
It all works out fine, just read the procedure until you understand every step and what it's meant to accomplish, before starting the wing rigging.
One of the two larger holes you mentioned will line up with elevator push tube, so just build on as you say and it will work out.
Darick Gundy
Sonex #1646
N417DG
Taildragger, Aerovee, center stick, Prince P-Tip Prop
MGL E1, F2, V6 radio, Sandia Xponder, Reserve lift indicator (AOA), iFly 520
First flight! 10/21/2017