Lemmingman
Well Known Member
After a 4 month forced hiatus, I got back to the plane today. I got it moved into the driveway and fit the wings. I was planning to get wing incidence set and such, but never made it that far.
The wings went on easily enough with some Tractor Supply 7/16" bolts. A really quick measurement from the tip of the outboard aileron bracket to the rear of the fuse showed about 3/16" difference between the wings.
We setup the plumbobs and it was clear that the wings both had some slight forward sweep. However I dont understand how to get rid of it. The rear spar attach might have 1/16" before it touches the round headed rivet. We wiggled...pushed and cursed at it and could not get the wing to move even a mm. With those main spar bolts in there I have no idea how it is supposed to move at all. The instructions don't make it any easier.
I guess the line is a moot point until I can figure out how to adjust the wing to make the distance from the tips to the tail equal and remove any sweep from the wings.
Any guidance or ideas you might have had would be most helpful.
The wings went on easily enough with some Tractor Supply 7/16" bolts. A really quick measurement from the tip of the outboard aileron bracket to the rear of the fuse showed about 3/16" difference between the wings.
We setup the plumbobs and it was clear that the wings both had some slight forward sweep. However I dont understand how to get rid of it. The rear spar attach might have 1/16" before it touches the round headed rivet. We wiggled...pushed and cursed at it and could not get the wing to move even a mm. With those main spar bolts in there I have no idea how it is supposed to move at all. The instructions don't make it any easier.
It then proceeds to tell you how to check with plumb lines. Then we get this confusing sentance:Equate these distances at the same time checking that the wings have no forward or aft sweep
What am I marking? Why? I can under stand the rear spar, but why am I marking the center section...it's already bolted to the wings? I've read ahead and in the next 3 pages this mark is never mentioned again. Is this a line that tells me where to drill the hole? What is this line telling me on the center section?Mark this position with a vertical line at the rear spar attach, on both rear spar and center section.
I guess the line is a moot point until I can figure out how to adjust the wing to make the distance from the tips to the tail equal and remove any sweep from the wings.
Any guidance or ideas you might have had would be most helpful.