NOVELTY - The blade (10) has fairing (24) that includes a trailing edge component (14) mounted on structural component to complete the aerodynamic profile. The edge component is formed from a material comprising an elastic modulus in the range of 0.5 to 2.5 GPa such that the material elastically buckles when loading on edge component exceeds a predetermined threshold. A structural component (12) is formed of unidirectional reinforcing layer (26) adjacent to edge component, and reinforcing layer is formed of layer of unidirectional fibers that extend in spanwise direction.    USE - Blade of wind turbine (claimed).    ADVANTAGE - Since the unidirectional reinforcing layer increases the rigidity of the trailing edge of the blade, the trailing edge component reduces the level of noise. So, this increases the resistance of the blade to permanent buckling without any corresponding increase in the noise levels generated. When the blade is subjected to extreme loading conditions in which the threshold is exceeded, the trailing edge can flex and buckle before recovering its original shape when the loading conditions return to normal and the loading on the trailing edge component falls below the threshold. Thus, aerodynamic performance can be maintained below the loading threshold without experiencing buckling damage of the blade during extreme conditions and without the need for sacrificial components. The unidirectional reinforcing layer includes the layer of unidirectional fibers extending in the spanwise direction. Thus, the edgewise rigidity of the fairing in the region of the leading edge is increased and buckling of the trailing edge is reduced.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preventing buckling of trailing edge of wind turbine blade.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic top view of the blade.    Blade (10)    Structural component (12)    Trailing edge component (14)    Fairing (24)    Unidirectional reinforcing layer (26)