Good day, today I’m working on the fuel tank trap door which is located on the 2nd inboard rib from the root. The purpose of the trap door is to create a bit of a header tank in the inboard fuel tank bay, acting as a check valve allowing fuel to flow into that bay […]
Fuel Tank Stiffeners and Tank Bracket
Good day, today I’m working on the fuel tank stiffeners and finishing up the fuel tank forward root rib bracket. I began with laying out all of the lower fuel tank skin stiffeners from the AA3 stock that came with the RV-4 wing kit. However, as I’m building the large 55 USG extended range tanks, […]
Fuel Tank Root Rib Work
Good day, today I’m going to be continuing with working on the fuel tank root rib. I starting off with finishing up the T-407 reinforcing rings that I made, using the RV-4 supplied parts as a template. I made a bunch of these rings because I need a total 14 of these as I need […]
Fuel Tank Rib Prep and Forward Bracket
Good day. Today I’m working on the preparation of the fuel tank ribs to add all of the various holes for fuel transfer between bays, vent line hole, and water drainage. I also started by working on fabricating the forward inboard root rib attach brackets. The layout for these brackets is pretty straightforward. Then I […]