A wind turbine rotor comprising at least one bearing member 5,6 permitting rotation of the rotor with respect to a shaft 2 about an axis 4, a generator drive arrangement 9, a plurality of turbine blades 7 and blade mounting arrangements 8, the blades being unsupported at their radially outer ends, each blade mounting arrangement being arranged to communicate components, acting parallel to the axis, of all forces acting on the associated blade to the at least one bearing member, and to communicate torque acting about the axis on the associated blade to the generator drive arrangement, the generator drive arrangement being connected to but separate from the blades, the blades and the blade mounting arrangements being such that the blades are of fixed pitch. A turbine rotor having a hub and at least one blade, each blade having a centre of force for all force components acting parallel to the axis, and having first and second members connected to the hub and extending in lines which intersect each other at or adjacent the centre or force is also claimed.
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