Prepped Wing Ribs

Normally, wing rib prep is BORING. All the builders complain about it, and I’m guessing that some people actually do quickbuild kits because it’s so boring. Not me. I like boring (no I don’t) and enjoy rib prep (no I don’t). If I had the money for quickubild (I don’t), I still wouldn’t do it (yes, I would).

I decided to take a different tack. Instead of prepping the interior of all the lightening holes. I decided to edge-finish all the ribs and flute & straighten the flanges ONLY. This let me plow through the 14 ribs and get them clecoed to the main and rear spars. I took a total of ZERO pictures until I had the left wing clecoed together.

Left wing clecoed. Is that spar sagging?

Of course, the obligatory lightening hole picture…

Left wing down-the-holes shot.

Whoa. TIME TRAVEL. I think this is a picture of my rear spar jack pad (the 2×4 screwed to the wing stand). But clearly the right wing is also clecoed together.

Here’s my rear spar “jack pad.”

Here are the right wing ribs.

The right wing clecoed. Whoa, look at that spar-sag.

And a DIFFERENT lightening hole picture.

Right wing “down-the-holes” shot.

As you saw in the pictures above, I need to jack up the rear spar to straighten each wing before hanging the skins. Previously, I used a threaded rod system with a couple nuts and washers. No use reinventing the wheel.

I traced the aileron pushrod hole onto some scrap 2×4 and fished out some hardware.

A workbench shot of my rear spar jacks.

Here’s a good shot of how the jacks work. Supported underneath by the “pads,” there’s a threaded rod with washer and nuts on it. The small 2×4 scrap pushes up on the rear spar. I can make fine adjustment with the nuts.

These wings are JACKED.

And after a little introductory straightening, I realized how tired I was after only 2 hours (it was HOT in the garage though).

All tucked away for the night.

2.0 hours. No rivets, but it’s pretty fun seeing a couple wings take shape.

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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.

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