Sanded and filed HS-404, 405, 606, 607, and 608 ribs. Notched HS-404 ribs to fit around spar splice angles. Filed and polished. Used a nibbler tool, which is much easier and cleaner than tin snips! Test-fit ribs to spar. Filed ends of HS-814 again per drawings to clear ribs. Heavily taped surrounding areas to prevent damage from Vixen file. Fluted all ribs. Bent and adjusted ribs flanges to get proper angles with spar. (Plans suggested using a hand seamer, but it was easier to do this by hand.)
Drilled out forward tooling holes on HS-606s for threaded rod. Made 4" x 1.25" skin replacement strips for next step out of .032 scraps. Mounted HS rear spar on jig. Clamped HS-606 ribs in place on ends of spar, drilled and clecoed both in position. Clamped left set of HS-405 and 608 ribs on spar. Test-fit forward spar. For tip-rib drilling, I used the Orndorff technique of pre-drilling the rib, then back-drilling using a long bit.
