Double drum traction winch

Double drum traction winch comprising a frame supporting a fist and second rotatable drum such that a wire can be wound about the two drums, further comprising one or more drives for rotating both drums about their respective rotational axis, wherein the circumferential surface of each drum is provided with parallel circumferential grooves perpendicular to the rotational axis of the drum for engaging a wire which is wound about both drums, and wherein the rotational axis of the first drum is tilted relative to the rotational axis of the second drum such that a circumferential groove on the second drum guides a wire wound about both drums from a first guide groove on the first drum to a second guide groove on the first drum and vice versa, wherein the parallel circumferential grooves of each drum are subdivided in a first set of multiple grooves designed for guiding a first wire and a second set of multiple grooves designed for guiding a second wire, wherein the grooves of the first set alternate with grooves of the second set such that the circumferential surface of each drum is provided with multiple grooves of the first group which are each interpositioned between two grooves of the second group, such that the traction winch is designed for cooperating with a first wire in the first set of grooves or with a second wire in the second set of grooves, wherein the first wire differs from the second wire in type of material and/or cross section and/or maximum tensile strength.