Hooray, I finally worked out how to upload an avatar

Now for the flight box fueling/defueling system.

I made some adapters to fit the cap of my fuel bottle. 1/4" brass threaded rod is cut to size and a 3mm hole is drilled through the centre. A section of 3mm brass tube is pushed through the brass rod and soldered into place. Half-height nuts secure the adapters to the fuel cap and a 1mm piece of fuel hose is fitted between each nut and the fuel cap to provide an o-ring like seal. These are really easy to make and you only need a hack saw, drill and cigarette lighter style gas torch.

An electric fuel pump is installed into the tall compartment and the wires are fed through a small hole to the back of the power panel. Fuel lines are fed through the centre of the aluminium handle, via the fuel pump and to a piece of curly retractable fuel line. The return/vent line passes through the centre of a piece of dowel designed to neatly retain the fuel line. The bottom picture shows what it looks like when the curly line is extended during refueling.