Category: Empennage

  • Rudder Finished!

    Rudder Finished!

    I didn’t take many pictures of the finishing process, but it took me quite a bit of time on Saturday to get it done. I got all of the front edges rolled first. Luckily, the tool that I saw on the internet worked really well. It was just a bedroom clothes hanger pole and some 7/8″ sockets epoxied to the inside. It worked really well and I bet I’ll be using this same tool quite a bit in the future with other rolled edges.

    Edge-rolling Tool

    The front edge forming was actually easy to do but just time consuming. I luckily hit the predrilled hole in the counterbalance weight but that also was easier to do by drawing a line in-between the two screw holes and then splitting the difference in the length between them both and it was right smack dab in the middle of the pre-drilled hole. It turned out pretty good though!

    Front edge of rudder covering the counter-balance weight
    The finished rudder!
  • Rudder Trailing Edge Riveted

    Rudder Trailing Edge Riveted

    Before all of the travel we had planned for the Mother’s Day weekend, I decided to button up the trailing edge of the rudder as well as get the spar riveted. I was able to use the squeezer for most of the spar, but there were a few places that I didn’t have enough depth to the yoke I’m currently using so I had to break out the rivet gun and bucking bar for those. I tried to use my trailing edge squeezer set but I tried it once and it was creating some odd looking rivets so I decided just to do the backriveting the way they explained it in the manual. There were a few places where I attempted to rivet it too much and created some circle indentions from the backrivet bottoming out against the rudder. I tried to keep that to a minimum but I kept trying to get my rivets perfectly flush instead of just enough. Either way, it was a long and tedious day but the rudder trailing edge looks awesome for my first time if I do say so myself!

    Trailing edge and spar riveted in place!
    Some of the marring I was talking about. I thought it wasn’t flush so I tried a few more hits and ended up with these beauties.
    First attempt at rolling the front edge. I’ll have to get some better tape because it kept either letting go or tearing.
  • Rudder Trailing Edge Sealed!

    Rudder Trailing Edge Sealed!

    I finally had enough contiguous time to get the rudder internal stiffeners and sheer clips riveted together and the trailing edge sealed. Now just to wait a few days for it to cure and I can finish the riveting and button this up finally!

    All the sheer clips and stiffners riveted
    All set and ready to wait and cure!
    This crap gets everywhere! I kept finding fresh spots on me and my clothes for an hour afterwards.

  • Rudder Riveting and Setting up a Jig

    Rudder Riveting and Setting up a Jig

    I spent most of this weekend getting stuff put together on the rudder to make sure things lined up, etc. I noticed that the trailing edge of the rudder wasn’t super flat so I decided to follow the route that quite a few others have done which is to setup an angle iron jig. I got that done this weekend and now I have just a few small places where I think the counter sinking isn’t 100% but I’ll get that cleaned up here soon and get this thing closed up. I wasn’t 100% happy with the rivets on the stiffners…. The rivets kept wanting to fold over doing the back-riveting. I tried my absolute darndest to keep that rivet gun 100% vertical, but that’s impossible with out a level on the backside of it. I would just give a few taps with the rivet gun and then check. Do a few more and check again. But usually once it started folding over it was a do-over. Oh well…

    I also had to spend a bit of time redoing the lights in the garage. The original ones were already burned out. I couldn’t believe it. I got a different brand this time which required me to remount these.

    This was probably the best I could do with the rivets. It kept spreading the rivet holes too much and created an odd head.
    Overhead view of rivet
    Angle view of the rivet
    It 100% together just to check fitment and look
    The rudder now ready to get glued and on the jig
    Much better now with it being straight.
    Some of the countersinking I will have to go back and check.
  • Almost Back to the Previous Step

    Almost Back to the Previous Step

    I spent some time today getting these parts deburred, dimpled, and primed so that I can start riveting when I get back after the funeral tomorrow. Luckily these were final sized hole pieces which made it much quicker in getting back to where I was before the rudder fell.

    Me in PPE just finished up the priming
    Just the parts. It’s odd that the paint looks uneven in the photo but not in person. I must need to work on my spraying technique
  • Rudder Hangar-Rash

    Rudder Hangar-Rash

    I finally got some time to cut the new rudder ribs and sheer clips as well as rivet them to the new skin I had ordered. I went ahead and put the entire rudder together again just to see how it looked, fit, etc. I was short on table space (first error) and decided to keep working with the rudder in a precarious position (second error). As I went around to get another few clecos I bumped the table and the rudder fell to the ground.

    Side view of the damage
    Looking down on the damage

    After bending the damage out (I don’t have a picture of the damage after it dropped) I noticed that it had creased the skin and the bottom of the spar and they had a fine crack in them. With a huge sigh I went back to my desk and ordered the replacement skin and spar and put it to the side to cool off.

    I finally got some time tonight to get out in the garage and disassemble the work I had just done. Luckily this time I was much better at getting the rivets off without enlarging the holes. So I didn’t have to order any new stiffeners. The new spar is my next step to prep and then the skin after that and I’ll get it all riveted back together. I hope to get some time to do that tomorrow but I have quite a few church activities to attend to. I also won’t have time on Monday or Tuesday as we will be holding the funeral for my grandfather-in-law. Here’s the aftermath of all the rivet drilling, or at least some of it. I had swept some of it to the ground already.

    A small amount of the rivet drilling carnage

    Luckily I’m not discourage still. I enjoy working on this and I’m learning lessons all along the way. I have gotten better at removing rivets like I stated and I’m also getting a little bit better at priming the parts. Still loving this 🙂

  • Rudder Rework & Snow

    Rudder Rework & Snow

    I spent a good 2 hours getting the new rudder skin deburred, dimpled and riveting the stiffeners on. I am kind of at a stand still now as I’m waiting for parts to come in which might be a bit longer with all of the snow going on here. Crazy snow and temperatures have covered Oklahoma over the past 5 days. I have been working from home for the past week with the ice that came before the snow. Luckily I’m catching up on some reading and cleaning up the garage so that it’s ready to redo the stiffener work and then getting the rudder put together. I’m super excited to get the parts in!

    Our community pond frozen over! Enough to where it held my weight

    I also found a really nice and simple paint job for the plane! I really like this simple idea and it’s actually a fairly normal paint scheme as well, but it’s the silver, metallic, blue that they have that also makes it look really nice.

  • Match Drilling Spar & Spar Caps

    Match Drilling Spar & Spar Caps

    February 1, 2021

    Page 8-5: Step 1 & 2

    This took alot of time doing these steps. Alot of deburring due to the lightening holes in the spar and a ton of drilling due to the length of these spar caps. But it looks and feels great! Glad to have this done so I can move on tomorrow.

    Almost can’t fit it in frame. Super long spar!

    I also had a tool arrive today, which was the small size torque wrench. It had good reviews on Amazon and it was only $50. I hope I didn’t waste $50…

    Case
    Torque Wrench
  • HS Spar Caps and Stringer Cutting & Deburring

    HS Spar Caps and Stringer Cutting & Deburring

    January 31, 2021

    Page 8-3: Step 3, Page 8-4: Step 1

    While I’m waiting on some rivets to show up as well as a torque wrench for the low end torque ranges to show up, I decided to soldier on. I started with step 3 of page 8-3. I started measuring out and cutting the figure to the top left, but neglected to notice that you needed to cut down the flanges to a specific size first which is in the bottom right diagram in the picture below. Seriously? Why can’t that be the first diagram? You will have to make those cuts first before you make the cuts in the top left diagram. And of course I didn’t notice it until I had already cut out both. So I had to reorder the AA6-187 x 2 x 2 1/2 x 5 which luckily wasn’t that bad and hopefully they’ll wrap it up in the same order I made yesterday for the rudder skin and a few other parts.

    With that all screwed up (lol) I moved on to the next part. I started on page 8-4: step 1 which was cutting some angles off of the spar caps and stringers. Luckily that was something I was well familiar with from the VS so that went smoothly and without any issues. It does take a while to get the cuts done right and then deburring the entire piece, but it’s done and ready to go on to the next step!

    Caps and Strings cut & deburred!
  • HS Spar Work

    HS Spar Work

    January 30th, 2021

    Page 8-2: Steps 5-6, Page 8-3: Steps 1-2

    I had time to speak with one of our local EAA Technical Advisors, Stephen Muehlberg. He gave me a ton of awesome tips and advice on how to continue working and improving my quality. It really spurred me on today, so I started up on the HS, since I’m waiting on the rudder skin, stiffners, and shear clips to come in. I riveted almost all of the spar doubler (minus the AN426AD4-6 rivets since I’m out of those) which really taught me alot about how to hold the squeezer so that I get zero impressions from the dies. At least with my squeezer and yoke combo, I have to slightly anticipate the downward tilt of the squeezer. And, not by much I should add. Just enough where it’s perceivable that the angle is off a tad, but once it squeezes down it straightens out perfectly. It’s looking good, but I did have to order some additional parts from Spruce. I got some additional AN426AD4-6 rivets, plus some rivet gauges, and I need to get a good low range torque wrench. I have one for my automotive applications, which normally stay within the 30-120 ft-lbs range, but I need something that will get me into the lower in-lbs and the lower ft-lbs range. I’ll have to look into that, possibly even get a digital one. We’ll see

    Inboard hinge bracket assembly complete!
    All of the AN470AD4-6 rivets installed
    Inboard hinge bracket assembly temporarily installed
    Backside of inboard hinge bracket assembly. The washers they call out for (AN960-10) are referenced as NAS1149-F0363P in the parts Van’s sends you