Today I’m working on the fuel tank rib layout for all the various holes that need to be added to the ribs. These are fuel transfer holes, venting hole, and holes for the fuel vent line. There are significant differences here between the RV-4 plans and the HRII Sport Wing plans. In particular, the fuel […]
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 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 […]
Fuel Tank Parts Delivery
Good day, just a quick update for today as I just took delivery of some parts I need for the fuel tanks. These included a beautiful set of Newton fuel filler caps. These locking fuel caps are expensive ($250.00 CDN – each!!) but are much nicer than the fuel caps that came with the RV-4 […]