Patent ID: 8304651

Claim:
An umbilical comprising: a number of fluid pipes, electric wires and/or optical conductors, filler material located at least partially around and between the fluid pipes and the wires/conductors, the number of fluid pipes, the filler material and the electric wires/conductors being gathered in a twisted bundle by means of a laying operation; a protective sheath that encompasses the fluid pipes, the wires/conductors and the filler material; and at least one load carrying element at a predetermined location in the cross section of the umbilical, wherein the number of fluid pipes, the electric wires/conductors, the filler material and the at least one load carrying element, are alternately laid, i.e. by continuously alternating direction, in the entire or part of the longitudinal extension of the umbilical, to form a bundle and the laid bundle is kept fixed substantially torsion stiff by the protective sheath.