Hose for conveying fluid

A refuelling hose for air-to-air refuelling, the refuelling hose comprising:

• a wall defining a fuel carrying tube and a power and/or data transmission cable integrated into said wall;
• a distal end and a user definable module, the user definable module including a connector for electrical connection to said power and/or data transmission cable;
• and
• an intermediate connecting collar, attachable to the distal end of the hose proximal to the user definable module, the intermediate connecting collar comprising first electrical terminals to connect the cable to conductors in the intermediate connecting collar and second electrical terminals spaced from the first electrical terminals to connect the conductors in the intermediate connecting collar to the user definable module,
• wherein the user definable module is removably attachable to the distal end via the intermediate connecting collar,
• wherein the wall comprises an inner fuel carrying tube and an outer protective sheath, wherein the power and/or data transmission cable is positioned between the inner fuel carrying tube and the outer protective sheath,
• wherein the power and/or data transmission cable is wound around the inner fuel carrying tube to define a helical path along the hose, and
• wherein the power and/or data transmission cable comprises a plurality of spaced insulated wires encased in a sleeve of low friction material to allow movement of the wires relative to the sleeve when the cable is subject to bending.