Good day, today I’m continuing to work on the fuel sending units. Part of finishing off the installation of the sender plates, was that I needed to install the anti-hang up brackets in the root rib bay for the flop tube. While doing this, I also needed to make sure that the flop tube didn’t […]
Capacitance Fuel Sender Isolators
Good day, today I’m continuing with making the isolators for the capacitance fuel sender system. These isolators are made from 1-inch Delrin rod. You need 3 isolator assemblies per sender plate – in total you’ll need 12 isolator assemblies. The Van’s OP-7 drawing shows using Delrin “washers / spacers” of 1/8-inch thickness. With one assembly […]
Fuel Tank Baffle Access Panels Continued
Good day, today I’m continuing with working on the access panels for the rear baffle of the fuel tank. As the baffle plate is going to be dimpled to accept the flush rivets for the nutplates, I therefore needed to countersink all the rivet holes on each of the reinforcement rings. So that’s where I […]
Fuel Tank Rib Layout
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 […]