Jessen RV-10 Builder's Log
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Problems pages are devoted to building or plans issues I've run into, either those of my doing, or those of Van's.  Tim Olson has been trying to keep track of issues on his web site that others have fed him, so you might go there to get a more complete list.   

Problem Type: Countersinking Technique
Where Found: HS - Riveting skins to spars and stringers.
Description: Skins not pulling together tightly to the spar upon riveting
Solution: Drill out rivets; fix countersinks

My skins were not sitting flush against the front spar flanges in some areas.  I'd noticed this, and was somewhat concerned, but for some reason kept going, driven perhaps by the "get there itis" of riveting and building.  I wanted to mount this HS sucker on the wall and declare another major piece done.  Besides, I was really getting into the swing of things.  I had that riveting rhythm going and didn't want to stop.  Progress was being made.  Silver clecos were flying off those skins. 

Well, I'm now drilling out about 75 rivets and learning a new skill.  I'm also sending away for a chip chaser and screw-type clecos to help pull the skin dimples into the spar countersinks.  Doesn't really look all that hard to do. 

If not fixed, there would be a bevy of smoking rivets in a hundred flying hours or so, and more than likely had to either use pop rivets after drilling them out, or build a new HS.  The gap was never more than 1/32nd.  I've discovered that drilling out rivets isn't that hard.  It has a rhythm of its own.  This will set me back only a day or two.  Given the time to build one of these planes, that's not all that much. 



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