False bottom ribs at lift struts

[Delta Whisky]

My search has not yielded pictures of the popular way to position the bottom false ribs in the lift attach bays. Did you attempt to avoid the attach brackets or carve to fit, or, ???? In advance, thanks for your advice, Darrel

[bholland]

Darrel,
I used the trim to fit method.

[aviator79]

There are only two in that bay, and one of them has to be trimmed to fit.

[TJay]

This is a bit off topic here but when I zoom in on your image and look at your lift strut bracket I notice that there are no more welds on the piece that the lift strut bolts into? It looks like a way better design than relying on the welds to hold the wings on. When did kitfox change this?

[Delta Whisky]

bholland and Brian - thanks, I followed your footsteps.

[jrevens]

Darrel,


I used 3 evenly spaced ribs - same as all the other bays. There were enough provided in the kit for that. I had no problem trimming and fitting them.

[aviator79]

That's interesting John. My instructions specify only two between 6 and 7, and there were only enough in the kit to do two. I wonder why there is a difference.

[efwd]

Ditto what Brian said. I figured it was a nice gap to accommodate an inspection panel. That's how I utilized the gap anyhow.

[Dave S]

Did the same as John with three ribs. Using a straightedge as a guide when trimming and for locating when bonding.


I speculate the reason for the two ribs is to facilitate installation of the upper lift strut bolt in this position.


Wanted to maintain the bottom airfoil full span and decided it was not that hard to work around the bolt.