Sonex 1404

Posts Tagged ‘skin

I’ve been very busy at work (like that’s new) so I haven’t been able to update the blog. I have however made some progress on the horizontal stabilizer. I completed the forward spar. I then arranged the spars and ribs and aligned them to be true. Finally, I drilled and clecoed them.

Once this was done, it was time to skin the horizontal stabilizer. I used two heavy boxes of tiles that happened to be lying around to hold the skin down while I drilled and clecoed. I then turned it around and repeated the process on the other side.

Once I finished both sides, I saw that I had drilled too close to the edge of one of the ribs. Some of the holes were not even completely within the rib flange – they were straddling the edge. I decided to make another rib, and as luck would have it, I had a piece of stock that was exactly the same length needed.

You can see where the holes are not aligned on the far side of the flange on the top rib in the photo above. The bottom rib is the new one I made. Once it was done, I fit it in the stabilizer frame and drilled/clecoed it in place. This time around, it was perfect.

After this, I drilled/clecoed the rib ends and then finished up the skins. It now looks like it belongs on an airplane – minus the clecoes.

The fiberglass tips are next, followed by the elevators. The hinges on the stabilizer will have to wait until after the elevators are built. Once all of them are fit together, the whole assembly will be up-drilled, clecoed back and riveted.