eatenbyagrue
Active Member
Hi All,
I could use advice regarding the fit on my QB bottom wing skin. Basically, I've got nearly the whole skin riveted on and am finding the row of holes on the forward spar are all about 1/32" off, enough to not quite let a rivet be pushed in.
When I fit the skin, I had a similar issue. I worked around it by changing my cleco pattern, until I could get cleco's into every few holes. Thinking I had it lined up, I then drilled, deburred etc and and started riveting.
Now I've got the skin almost fully riveted, starting from the trailing edge, and things aren't pulling together again like they did clecoing. The weird thing is, the entire rear spar and ALL the rib holes line up just fine, the only misalignment is with the forward spar. I'm thinking that that bases of the wing ribs weren't quite fluted enough during the QB build, increasing the gap between the "foot" of the rib and the spar.
So, the question is, what now? The holes aren't very far off... my inclination is to redrill the holes to #40 (slightly enlarging them,) and then using the next length rivet in the holes to allow them to swell up a bit. I suppose my next thought would be to drill them all out to #30 and use AD4's, but, that seems like overkill. Thoughts from the VAF?
Thanks much,
Josh (very frustrated)
I could use advice regarding the fit on my QB bottom wing skin. Basically, I've got nearly the whole skin riveted on and am finding the row of holes on the forward spar are all about 1/32" off, enough to not quite let a rivet be pushed in.
When I fit the skin, I had a similar issue. I worked around it by changing my cleco pattern, until I could get cleco's into every few holes. Thinking I had it lined up, I then drilled, deburred etc and and started riveting.
Now I've got the skin almost fully riveted, starting from the trailing edge, and things aren't pulling together again like they did clecoing. The weird thing is, the entire rear spar and ALL the rib holes line up just fine, the only misalignment is with the forward spar. I'm thinking that that bases of the wing ribs weren't quite fluted enough during the QB build, increasing the gap between the "foot" of the rib and the spar.
So, the question is, what now? The holes aren't very far off... my inclination is to redrill the holes to #40 (slightly enlarging them,) and then using the next length rivet in the holes to allow them to swell up a bit. I suppose my next thought would be to drill them all out to #30 and use AD4's, but, that seems like overkill. Thoughts from the VAF?
Thanks much,
Josh (very frustrated)