Category Archives: Empennage

More Vertical Mounting

Hours this entry: 4
Download PDF

Finished getting the vertical mounted and riveted the front joiner and spacer to the spar. Got the holes into the Horizontal drilled to final size, and bolted down as well.

Next it was time to work on the Elevator horns and get them drilled. 

Unlike some other builders, our horns were pretty well in line with each other and the hole for the pushrod end ended up perfect.

 

Mounting the Vertical

Hours this entry: 5.5
Download PDF

Prepping the Vertical Stab to be mounted. Here it’s in place with just the locating hole and the front spar clamped in place. 

Drilling the final bolt holes. 
All done for now. Close up shot of it bolted on. Next up is the front attach. 

I trimmed the Front Spar VS-702 as the instructions said, but s you can see in the photo, I had an issue with the edge distance on the bottom rivets….

So I decided to fabricate a whole new joiner.

Finished joiner, primed and ready to be installed.

Here we are aligning the vertical, making sure it’s not canted off to one side.

Trim Tab Riveting

Hours this entry: 1.5
Download PDF

I started to rivet the trim tab today. Because I chose to use the riblet method and face the flanges inboard, I have to use blind rivets on them. Got to the hangar thinking I had the right ones, but I didn’t so I had to order a few.

Riveting the tab’s spar to the bottom skin looked like it was going to be a challenge, but using the longeron yoke worked perfectly. I ended up having to buck a couple of the trim tab horn’s rivets, but they came out really nice.

(null)

Trim Tab

Hours this entry: 4.0
Download PDF

I decided to go the riblet method instead of folding over the ears on the tab. Here is the first riblet being fit on the Elevator skin.

(null)

Riblet inside the tab.

(null)

Checking the trailing edge alignment before drilling the hinge.

(null)

Hinge drilled and clecoed.

 

(null)

Nice width on the gap between the skin and tab.

(null)

Trim access plate.

(null)

Left Elevator & Trim Tab

Hours this entry: 6
Download PDF

Building the Left elevator was a non event until getting to the trim tab. After spending a bit of time forming the block to get the ears bent, I got the first bend OK, but the subsequent bend didn’t come out so well. It was time to order a new tab, along with some more E-703 ribs so I could go the riblet route.

Here’s the first riblet cut:

IMG_1822.JPG

Test fitting the trim tab once the ears are cut off.

IMG_1829.JPG