Title: 17-02 - Leading Edge Cradles and Ribs Preparation
06/27/22 – 0.6h 06/28/22 – 2.7h 06/29/22 – 1.1h I was fortunate to borrow a leading edge cradle assembly from another RV-14 builder, so I didn't have to cut up my wing kit crate lid to make new cradles. I replaced the duct tape on his cradles, and they are ready for use on my leading edges. I was also fortunate that most of the flange angles on the leading edge ribs didn't need significant adjustment. The ribs did require some fluting to straighten them out, and I may revisit fluting later depending on how well the ribs line up with the holes in the skins. The forward-most portions of the ribs might not be quite right, yet. UPDATE: I took another look at the rib alignment after I finished deburring the holes and edges. The rivet lines on the skins are straight from the tail to the nose, so the ribs should be straight as well. I wasn't 100% sure since the tips of the ribs were all at an angle. Apparently adding the T-shaped stiffener bend to the nose of the ribs bends the flanges a bit. I put the ribs on the marble slab (my flat surface) and ended up fluting the forward section of almost all of them. They are much straighter now, which should make riveting easier later on. After final-drilling the #30 and #40 holes in the ribs, I notched the rear flanges of the two inboard W-1009-L and W-1009-R ribs to clear the spar bars and rivets on the main spar. The first inboard rib gets a notch at the top and bottom of the rear flange, and the second inboard rib just gets a single notch at the top. I planned to use my bandsaw for the cuts, but the Dremel was a better choice for me. I used a flat file and small pencil file to clean up the cuts and get them to the specified measurements. After I finished the notches, I cleco'd the ribs to the main spar to check the clearance, which looked good. [Fluting Pliers, Hand-Seamer, Hole and Edge Deburring Tools, #30 Drill, #40 Drill, Dremel with Metal Cutting Disc, Flat File, Pencil (Hobby) File]


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