David's RV-10 Build

Just another RV-10 builders log

Category: 21) Ailerons

Week Ending 7/18/26

This week I started off by designing a little jig to hold the VA-140 training wing edge so that I could make sure that I was just working on a nice smooth flat surface. Once I got to the shop, I went straight to town on one of the VA-140s that I had to work on and got that all drilled out.I did pick up that I need to make some modifications to the design because the chips were getting in the way so I’m going to add some holes to this jig for when I do the flaps.After making sure the holes were the correct size and countersinking everything, I used some VAB tape to hold it to the inside of the aileron. This is definitely way easier than using pro-seal.Once I got everything cleco’d, I pretty much ran out of stuff to do because I’m just waiting on things. I decided that I was going to add an outlet near my drill press. That took quite a bit of time but I’m glad that it’s done.

On Monday the mailman quickly dropped off my delivery from Cleveland Tools with the trailing edge squeezer set so I went to town and got the trailing edges of the ailerons all squeezed in. This was a great purchase. I’m really glad I purchased this. I wish I had it when I was working on the elevators and the rudder. While working on the second aileron for some reason, and I don’t know why, the skin would just pop up on the last three rivets. It just wasn’t looking good so I decided to drill out all the rivets and I ended up having to replace this one particular piece of trailing edge. It looks a heck of a lot better than it was originally going to.

Once I had the ailerons done, I started mounting them into their final positions and using the hardware. I was hoping that it would force something away from another spot because I was having rivets that were hitting the inside of the ailerons. I just assumed that it was a washer issue. I ended up pulling up the service bolt for the aileron bracket and discovered I had used the wrong rivets. I ended up having to order some rivets and drill them out and just redo it.

Since I was back to not having anything else that I could do, I decided to extend our airline from the loop over to the drill press so that I can have an air hose over there. This is definitely a nice thing to have right next to the drill press.Later that day I ended up getting a nice box from UPS that said Dynon all over it. I opened that up and had my Dynon heated Pitot and my Autopilot servos had come in. That was nice. I ended up putting Deutsch DT connectors on the servos and the Pitot.

The next day I came back and pretty much didn’t really have much I could do other than trying to figure out the Pitot heater controller situation. Some of the ideas that I was able to come up with were:

  • Installing some 6-32 rib nuts into the main spar but I’m going to have to call Vans to confirm that I can do it
  • I also checked with one of the Facebook groups and some people had suggested using click bond fasteners.
  • I’ve also had suggestions on mounting it to the wing ribs, but I haven’t seen any decent ways that I really liked that I thought would be easy to remove the controller if I ever had to.
  • Some people mentioned mounting it to the access panel, which I’m not sure if I’m a fan of that either but we’ll see how that goes.

I had also developed some 3D printable conduit clips that I printed with PA12-CF. I took some time and installed all the clips and then ran my RF conduit. I ended up discovering after I ran the RF conduit that I put it too close to the top skin and that was going to interfere with some of the control linkage for the ailerons. I was able to move that one clip to the opposite side of the wing rib and it created enough room.

Week ending 7/4/2026

This week I got the first of the bottom skins riveted on the left wing and made a start on the ailerons.

Before riveting the bottom skins I marked up all the rivet callouts with sticky notes and a highlighter so I could tell at a glance which rivet goes where. This made the whole job much easier and I’d recommend it. Riveting went slow at first while I got the hang of it again. I checked every rivet with the gauge until I trusted my technique, then just spot checked each row after. A few had to be drilled out and replaced, and a couple holes earned oops rivets, but overall the first skin came out great. It took several sessions spread over a few days thanks to the heat.

I’m holding off on the outboard skin because my pitot heat controller hasn’t arrived yet, and it mounts right in that area. Getting to it after the skin is on looks like a pain, so that side waits.

When I pulled the skin off the other section, I found my long-lost tape dispenser and a pair of pliers living inside the wing. So that’s where those went. After cleaning everything out, I confirmed the autopilot bracket was already swapped in, so nothing was stopping me from riveting this section.

Then came the big one. While drilling out a rivet I didn’t like, the bit slipped and punctured the skin. Way too big, so that skin is getting replaced. Fortunately I had only done the top row of rivets, and it’s the smaller of the two skins. I also decided to order the quick build fuel tanks this week, so the replacement skin goes on the same order and saves me shipping. I nicked the rear spar getting the rivets back out, I think it’s fine, but I may add a doubler on the back side with longer rivets for peace of mind.

With that on hold, I moved to the ailerons. I tore the right one apart thinking I had skipped steps, but it turns out I just never checked them off in the plans — so I got to reassemble and match drill it all over again. Countersunk the #30 holes in the leading edge and found the counterweight was already prepped from whenever past-me last touched this thing. Then it was the usual wash, acid etch, and prime routine. At 100 degrees outside the primer was drying about as fast as it hit the parts.

A tip for other builders: I got tired of mentally flipping the plans while working on the right aileron, so I downloaded the PDF and mirrored the pages. Now the drawing actually matches the part sitting in front of me. Wish I’d thought of this a long time ago.

I got the ribs riveted to the spar and the top skin riveted on minus one rib I had to drill back off because its tab was facing the wrong way, which I of course noticed only after half the skin was riveted. The last thing standing between me and a finished right aileron is tank sealant, which I can’t order until Monday. I need a batch anyway for when the quick build tanks show up, since I’ll likely be opening those up to sort out the fuel caps and add a return line for my fuel injection.

While waiting on primer to dry I also started a shop upgrade: mounting a cord reel in the corner that has no usable power. There’s still a conduit running back to the panel, so a junction box and a new outlet will finally fix that.

More Aileron Work

Today I started off by scruffing, cleaning, and priming the parts I left off with yesterday. I apparently forgot to take some pictures but not big deal. While those parts were drying, I started the leading edge portion of the ailerons. This was pretty simple, just alot of cleco work. Taking apart and reassembling several times over. I finished up for the night with the drilling of the #30 holes on the leading edge.

 

Bottom Wing Skins 3 / Ailerons Start

Today I came in finished priming the bottom wing skin parts that I had yet to finish. Didn’t have to spend much time here.

Next I decided to go ahead and start working on the ailerons since I have YET to finish the fuel tanks. Might as well keep chugging and keep the motivation train going. I probably spent a good hour here, just looking for parts that were 3 feet away from me. On top of my instruction book. It is amazing how easily things disappear when you look everywhere else. This first page went really quick, I was able to cut, debur, drill, counter sink, sand, & prime pretty quickly.

Once these parts were dry, I quickly riveted them together. I did have a hard time locating the nutplates. I searched through the parts list about 5 times, search on vansairforce to see if anyone else had them. Priced them out on aircraft spruce, and finally sat down to eat my pizza that got delivered and the part # jumped at me on the page that was open. They are in bag 1219 if you run across the same issue I did.

Next I began by cutting the aileron ribs. the ailerons only have 2 on each, one on each end. the rest are actually just stiffeners.

Next I dimpled all the holes I could as requested by the plans. I noticed here that the plan steps do not mentioning dimpling the #30 holes, but one of the figures calls for a 120* dimple. I ended up ordering #30 120* dimple set from Cleveland Aircraft tools. I was ready to call it a night when the plans said I could primer everything. so I cleaned everything up.

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