by falvarez » Fri Jul 18, 2014 2:49 pm
I just wrapped up my wing rigging today. It wasn't fun at all; however, my wing spar holes came out great! I used a slightly different approach than others...it was based on a piloted reamer that I got from an estate sale of a builder of numerous aircraft.
The reamer is .3725 with a .3565 pilot. Once everything was aligned, I updrilled the main holes to 5/16, then 11/32, then 23/64 (the size of the pilot on the reamer). The final pass with the reamer was like going through butter and the holes are very round and the bolts need to be lightly tapped to seat them...a perfect fit.
If anyone wants to try out this method, I'd be happy to loan you the reamer as long as you return it when done so I can loan it to the next person.
Frank Alvarez
Sonex #800, Aerovee 2.1
Scratch Building (working on Cowl)