Tag: Elevators

I got almost all of the deburring done on the left elevator. I noticed that I had forgotten to prep the edge of the lightening circles on the front spar, so I got that done. I redid some of the fold work on the elevator skins too because it wasn’t to my satisfaction. It still isn’t satisfactory as it’s not a clean fold and has a little bit of a ripple. I still have to deburr the outside edge of the top skin and then deburr all of the bottom skin and it’ll be prepped for dimpling, priming and then assembly.

After I had finished all of the match drilling yesterday, it was time to work on these access panels before it has to be entirely disassembled. I did both the left and right elevator since my missing hardware does not affect me prepping these parts. Getting the nut plate drilled onto the access panel wasn’t too terribly difficult but that steel is harder and dulled two of my bits before it was all said and done. Luckily it only dulled the tip so I can still use that last bit for match drilling. I had a difficult time getting a hole to keep the bit centered. I am going to see if I can find a good notching tool today as my current tool is not really designed for metal.

I moved to the dimpling of these parts which had some of it’s own challenges. First was that I grabbed the wrong nutplates. I accidentally grabbed a K1000-06 thinking I had grabbed a K1100-06. I saw that this would NOT work and I was curious what the heck I did wrong. I posted it to the Facebook group called Van’s Aircraft builders and they VERY quickly spotted I had the wrong part. I went back to check and sure enough my bins for the K1000-06 and K1100-06 are right on top of each other and I must have seen the number but then pulled on the wrong bin. I am glad I caught it though instead of moving forward in my ignorance. It was good to learn the difference between a K1000 and K1100.

The next issue that I encountered was that the access panel would not sit flush to the reinforcement plate. The dimples need to be deeper in the receiving reinforcement skin. One of the guys on the Facebook group mentioned using the deburring tool to massage it. I did some but it didn’t help enough. I’m curious how much material should be removed there. I searched to see if there was a different dimple die for the bottom skin but I didn’t find anything yet. I’ll keep looking because that is going to make the access panel sit proud of the skin when all is said and done.

Everything though is finished at this point and I will start disassembly and deburring this afternoon. This actually spanned last night and into this morning (12/10 to 12/11/2021)

On another note, I decided to secure the parts that I had already built. During the Christmas decorating the boys kept touching and moving the parts and it was making me VERY nervous. I decided to use some of that A/C mounting ribbon to string it from the rafters in the attic. This will work for these parts but I don’t want to do this for the wings and other parts that will be built. So I’m building a shed in the back yard that will be 10′ x 14′ where all of the yard tools and chemicals will go that are taking up a large portion of my garage storage space now.

And a final note, I ordered my wing kit yesterday! I saw that the lead times were up to 10 months now for a kit! Crazy what this pandemic has done to lead times! Either way, fingers crossed that arrives in October or sooner but it looks like I’ll have some downtime between the empennage kit and the wing kit.

I got all of the pieces done and assembled and match drilled up to Page 9-8 Step 3. Even though these are just like the rudder in a way, they have quite a few more pieces in total since you are building two at the same time. I did run into a bit of a snag. While cutting the E-1023 trailing edge wedge pieces from the trailing edge wedge piece, I was literally one hole short on getting all of the trailing edge ready. So I am putting the right elevator to the side for now until the additional piece will show up. For now it is on back order so no telling how long that will take to get in. I also had some interesting times getting the elevator tip piece mated up to the elevator with all the holes lining up. It took some massaging but it finally came together.

I got quite quite a bit of clecoing done today as well as a little bit of the match drilling. The coolest part was doing the tab bends on the E-1001A & B skins. Using the mushroom bit in the rivet gun worked like a champ on getting those bends nice and clean. I did learn that it is best that your work surface have a hard edge to it. My work bench has a bit of a rounded edge so I put a piece of wood that still had a sharp 90 degree edge on it at the end of the bench to clamp the skins onto. That made this function a lot better. I did get one of the tabs off slightly due to the skin slipping some and me not noticing it. We will see how much that affects it down the road. I might have to re-bend that but not sure how well this alclad aluminum will take re-bending.

I spent quite a bit of time going through and deburring all of the elevator pieces minus the large skin edges. That took the most time out of all of this. I then worked on the 903 and 904 pieces to get them straight and level. Mine came pre-fluted but I ended up having to remove the majority of what they put in as it was causing it to bow pretty bad. I then assembled everything and I’ll do the match drilling tomorrow. My ribs for the elevator were already final sized, but the 903 and 904 ribs were not, so that I will finish tomorrow after we’re done shopping for Black Friday.

My son and I found all of the elevator parts in the attic and brought them down to start working on them. I’m not including the searching and inventory time in yesterday’s work. We got all of the protective plastic off of them and I cut the ribs per the instructions. The band saw made quick work of them, but it tends to leave them pretty jagged. I ran all of them through the initial deburring on the wheel and tomorrow I will finish the deburring with the Dremel so that I can get into the tighter areas.