Now that the right wing spar parts are all primed, there is just a bit more pre-assembly to do before I get into riveting the spar together. One main item is finishing up the tie down bracket. On the F1 (and Harmon Rocket II for that matter) the tie down bracket is installed a bit […]

Today I’m working on locating the attach angles for the wing ribs. This isn’t too difficult, however you need to make sure that you keep the perpendicular to the spar. A machinist angle works well here. I start by marking the centerline on the angle, then aligning it on the spar so that you can […]

Today I’m working on locating and drilling the wing rib attach angles (and a few spar stiffener angles). In the picture below you can see that I have already cut the angles and generally have them in the proper locations. The rivet layout for these angles is straight forward. I marked the centerline, drilled a […]

My new parts have finally showed up! Yay! For the past few weeks I’ve been waiting for my wing spar doubler panels to arrive. These parts were overlooked when I originally ordered the RV-4 wing kit. The forward wing spar web doubler is part of the Sport Wing modifications, it’s also not something that you […]