Patent ID: 8858178

Claim:
A fibre-reinforced rotor wing for a tail rotor of a rotary wing aircraft, the wing comprising: a rotor blade having a blade body with an aerodynamic profile and a blade skin; a tension-torque-transmission element extending from the rotor blade via a blade side connecting section, the blade side connecting section tapering from the rotor blade to the tension-torque-transmission element; and a hub side connecting section having a connecting eye and extending from a second end of the tension-torque-transmission element; wherein the blade body, the tension-torque-transmission element, the hub side connecting section and the blade side connecting section are formed by a plurality of unidirectional fibre layers, each fibre layer extending from the hub side connecting section to a tip of the blade body, the fibre layers forming stacked spar tapes; wherein the tension-torque-transmission element is formed by lamellae of the stacked spar tapes; wherein additional fibre layers are positioned between the stacked spar tapes in the blade side and hub side connecting sections such that the lamellae are spaced apart from one another in the tension-torque-transmission element; and wherein the additional fibre layers are scarf joined between the unidirectional fibre layers to provide triangular transition regions between the lamellae and the blade side and hub side connecting sections.