Started the fuel tanks this weekend. Lots of stiffeners and attach brackets to trim and deburr. Took a while. All the stiffeners are clecoed and match drilled.
Got each of the tanks assembled and match drilled. The ribs are really a pain in the @&%#* to get inserted in these skins. I finally got some good advice from the mailing list to get them clecoed in BEFORE inserting the skins in the cradles. This worked better, but it was still tight.
Time to rip them all apart and deburr and dimple.