Tensioning device for aircraft refuelling boom hoist

摘要: A power spring (30) passively applies tension to a cable (16) connected an aircraft refueling boom (12). The has first end engaging fixed arbor (26) and second rotatable spooling drum (20) around which portion of the is wound. biases rotate in winding direction apply cable, stores energy when rotates unwinding direction. may be located inside or outside drum. actively driven by motor (32) that uncoupled from permit freewheeling rotation drum, wherein continues cable. invention eliminates reliance on one more powered motors for removing unwanted slack