48 manifold 48 has four outlets each coupled to a respective thruster control valve 50 which may be composed of a solenoid and examples of which are already known in the art each control valve 50 is connected to control the supply of compressed air to a respective outlet nozzle 34 one thruster outlet nozzle 34 and control valve 50 are shown in greater detail in fig3 a fig4 a and 4b and 4 c illustrate three possible arrangements of the fuel hose and air hose according to the present invention all of these embodiments have in common that the fuel and air hoses form an assembly having a circular outline such an outline is preferred because it facilitates reeling of the assembly into the refueling vehicle in fig4 a hoses 12 and 47 are separately fabricated and hose 47 can simply extend freely along hose 12 except at the outlet end of hose 47 where it is connected to distributor 48 of fig3 in the embodiment of fig4 b fuel hose 12 u2032 and air hose 47 u2032 are formed by coextrusion in the embodiment shown in fig4 c fuel hose 12 u2033 and air hose 47 u2033 are each formed to have one flat side along which the two hoses are bonded together by any suitable bonding technique this bond may be formed in order to separate when.