Attaching Some Empennage Tips with Screws

Whoa, today was a fun day in the shop. After yesterdays matchdrilling of the elevator tips to the elevators, I decided to keep pressing ahead with attaching nutplates to the tips to allow them to be screwed on.

After drilling, I used a throwaway K1000-06 nutplate to drill holes for flush rivets, then got them riveted in place. Here’s an in-progress shot of some nutplate riveting.

NO rivets yet, just showing you my setup.

After riveting, I used the nutplate as a guide for countersinking the tip.

Nice countersinks here.

Then, I screwed the tip in place.

I am REALLY happy with how these turned out.

I’m glad these are removable.

Here’s the other side of that elevator.

The in-progress picture above was of the left elevator, and this is clearly the right. I wonder if I mixed up the picture order…

More countersinks for you.

These will accept the #6 dimples in the elevator skin nicely.

Oh shoot. I ordered fifty K1000-06 nutplates and #6 screws. That clearly wasn’t enough.

Every other hole will have to do until I can get some more in stock.

Let’s move on to the rudder and vertical.

First up, I need to attach some nutplates to this strap that will hold the rudder counterweight in place.

NAS1097 rivets worked very nicely here.

With the counterweight in place (where’s the picture, dude!?!?!), I moved on to trial-fitting the rudder tip.

It’s a little too long.

After some sanding and drilling, I got the vertical tip clecoed into place and the rudder tip at least nested.

There is quite a big difference in height here, but I hear a lot of people have to work additional layer of fiberglass to make them line up.

The rudder tip is a little shorter than the vertical tip, but I’ll add some layers of glass to even them out when I’m final-fitting to the airframe.

Let’s do the nutplate trick on the vertical stabilizer (because that’s exactly how may nutplates I had left.

Nice countersinks again!

3.5 hours today. 1.0 against the vertical, 0.5 against the rudder, and 2.0 against the elevators. 36 rivets for each elevator tip, then 16 more for the vertical tip. 52 total. 2 drilled out.

Unknown's avatar

Author: Andrew

I'm too lazy to fill this out. If you are actually reading this, send me a message, and I'll spend some effort on it.

Leave a Reply