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|  MIL-T-18847C(AS)
3.6.6 Maximum fueling rate. The pressure fueling equipment shall be
capable of receiving fuel at a rate corresponding to 60 psig total pressure at
the fuel line quick disconnect.
3.6.7 Fuel outlet line. Fuel outlet line(s) shall be provided and so
located that connection to the fuel system of the aircraft on which the tank
will be mounted shall be readily made, Such connection shall be leakproof but
shall not prevent ready jettisoning of an empty or fuel tank. The fuel line
shall be so arranged that all of the rated capacity of the tank may be
utilized with the aircraft in a line flight attitude. In addition, the outlet
location and the bottom of the tank shall be so designed that the maximum
mount of fuel may be utilized with the aircraft in flight attitudes between
normal angles of climb and glide. The suction line shall be so installed that
it shall be free of restrictions and sharp bends.
3.6.7.1 Fuel outlet line support. The fuel outlet line shall be supported
in the tank so that it will satisfactorily withstand any load, vibration, or
acceleration conditions encountered in service. A means of definitely
locating and securing the lower end of the suction line at the specified
distance from the bottom of the tank shall be provided.
3.6.7.2 Gravity filler unit. Unless otherwise specified, where gravity
filling provisions are required, a flush type filler cap in accordance with
MIL-C-38373 shall be used. The adapter shall be as specified by the aircraft
contractor and approved by the Naval Air Systems Command.
3.7 Environmental.
3.7.1 Temperature. The tank shall be capable of satisfying temperatures
of -65 5F to +160 5F, with no evidence of any leakage when
tested in accordance with 4.6.15.1.
3.7.2 Ultraviolet Light. The exposed tank components or the external
surface of the tank shall not be affected by normal ultraviolet light exposure
with the exception of external coating discoloration.
3.7.3 Fungus. The tank shall not be damaged by fungus when tested in
accordance with 4.6.15.2.
3.7.4 Humidity. There shall be no visual sign of corrosion on the tank
when tested in accordance with 4.6.15.3.
3.7.5 Salt fog. There shall be no visual sign of corrosion on the base
metal when tested in accordance with 4.6.15.4.
3.7.6 Sand and dust. There shall be no damaging effects from the dry dust
laden atmosphere when tested in accordance with 4.6.15.5.
3.7.7 Electromagnetic compatibility. There shall be no extraordinary
precautions required against electromagnetic radiation when tested in
accordance with 4.6.15.6.
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