Wind turbine blade

A wind turbine blade having a root end, a tip end, a leading edge and a trailing edge, the blade extending in a spanwise direction from the root end to the tip end, the blade comprising a tubular root portion having a proximal end defining the root end of the blade, and a distal end located at a spanwise distance from the proximal end, wherein the root portion comprises:

• a metal section which extends from the proximal end of the root portion towards the distal end of the root portion;
• a fibre composite section which extends from the distal end of the root portion towards the proximal end of the root portion;
• and
• a transition section which extends between the metal section and the fibre composite section,
• wherein the metal section comprises one or more metal sheets, a portion of one or more of which extend beyond the metal section into the transition section, wherein the portion of the one or more metal sheets located in the transition section is encapsulated within fibre composite material which is continuous with fibre composite material of the fibre composite section, wherein the metal section is connectable to a pitch bearing of a wind turbine hub.