Figure 4-7.-External fuel tank (with cutway view).
tank is equipped with a pressure-fueling float
supplement the internal fuel supply for extended
switch and an air pressure and vent shutoff valve.
The pressure-fueling float switch is a float-
Threaded bosses and threaded inserts are
operated device that accomplishes the shutoff of
provided on the top of the tank to accommodate
fuel flow when the external fuel tank is filled to
the installation of adapter fittings. These are used
capacity. This is an electrical connector provided
to connect the fuel tank to the aircraft fuel system
on the top of the tank for connecting the float