STi wing root covering on number 1 rib

[rwoneill]

Hello,

I'm having some trouble deciding on how to cover my STi wing at the number 1 rib.

I see guys wrapping only to the number 1 sti rib and the original number 1 rib would be raw wood with varnish and paint. The kitfox factory plane has this.

My thought is to wrap all the way to the original number 1 root rib. I could make a slanted "tent" profile instead of the straight 90 degree "fence" profile. Then the wood would be covered and the fabric would be a bit stronger because it would wrap 180 degrees around the #1 rib capstrip.

I have attached a photo of the wing. Feel free to draw on how you would do the fabric. Also is a brief youtube clip.

https://youtu.be/Ss56XyoF1Yw

-Roger

PXL_20201215_121006057.jpgPXL_20201215_115624055.jpg

[109JB]

Not an STi builder but doesn't the skylight overlap the first smaller rib? If so how would that angled fabric work.

[Denalifox]

Hello,

I'm having some trouble deciding on how to cover my STi wing at the number 1 rib.

I see guys wrapping only to the number 1 sti rib and the original number 1 rib would be raw wood with varnish and paint. The kitfox factory plane has this.

My thought is to wrap all the way to the original number 1 root rib. I could make a slanted "tent" profile instead of the straight 90 degree "fence" profile. Then the wood would be covered and the fabric would be a bit stronger because it would wrap 180 degrees around the #1 rib capstrip.

I have attached a photo of the wing. Feel free to draw on how you would do the fabric. Also is a brief youtube clip.

https://youtu.be/Ss56XyoF1Yw

-Roger

PXL_20201215_121006057.jpgPXL_20201215_115624055.jpg

the only concern with the "tent" method is youd have to make sure you don't use too much glue around that corner. Its a pretty tight fit with the metal cap strip on the butt rib and the #1 rib. If you gum it up too much you may run into a fitment issue.

[SomeDay7]

May have fitment issues. Here is a pic I took of a factory build

[rwoneill]

Talked to John M. at the factory. This is an aesthetic choice.

The poly fiber only needs 1 in to have a strong bond so one only needs to bond to the top of the capstrip to be safe.

I decided to wrap around the capstrip and down the filler web face.