bsbarnes10
Active Member
Hi,
I tired searching but didn't find anything on this topic so hopefully someone can enlighten me. I just started an RV-12iS empennage kit and I'm having some issues with LP4-3 rivets (you know, the ones you 12,000 of). My understanding (please correct me if I'm wrong) is that one advantage of the RV-12 is that you don't need to match drill most places because of improved tooling/manufacturing techniques. However, I'm finding many cases where the instructions do not specifically call out to match drill but if I don't, an LP4-3 rivet won't fit through the hole.
Case in point:
I'm working on the Anti Servo Tabs and the instructions tell you to rivet the skins to the spar but do not instruct you to match drill first (they do call out other match drill locations in nearby steps). But if I don't match drill, you can't get the rivet into the hole any deeper than about 0.5 mm. Every hole is clecoed and they're lined up perfectly, i.e. there is no obvious misalignment. I checked with a #30 drill bit and it won't fit either so the holes are not physically large enough for the rivet. I had similar problems on the rudder and vertical stabilizer with 10-25% of the holes too small for a rivet, even when properly aligned.
Is it just unspoken that you have to check and match drill where necessary or and I doing something wrong / missing steps / etc???
Any input would be appreciated!
Bruce
I tired searching but didn't find anything on this topic so hopefully someone can enlighten me. I just started an RV-12iS empennage kit and I'm having some issues with LP4-3 rivets (you know, the ones you 12,000 of). My understanding (please correct me if I'm wrong) is that one advantage of the RV-12 is that you don't need to match drill most places because of improved tooling/manufacturing techniques. However, I'm finding many cases where the instructions do not specifically call out to match drill but if I don't, an LP4-3 rivet won't fit through the hole.
Case in point:
I'm working on the Anti Servo Tabs and the instructions tell you to rivet the skins to the spar but do not instruct you to match drill first (they do call out other match drill locations in nearby steps). But if I don't match drill, you can't get the rivet into the hole any deeper than about 0.5 mm. Every hole is clecoed and they're lined up perfectly, i.e. there is no obvious misalignment. I checked with a #30 drill bit and it won't fit either so the holes are not physically large enough for the rivet. I had similar problems on the rudder and vertical stabilizer with 10-25% of the holes too small for a rivet, even when properly aligned.
Is it just unspoken that you have to check and match drill where necessary or and I doing something wrong / missing steps / etc???
Any input would be appreciated!
Bruce