A wind turbine blade with a surface-mounted device

A wind turbine blade, wherein the blade has a profiled contour including a pressure side and a suction side, and a leading edge and a trailing edge with a chord having a chord length extending therebetween in a chordwise direction, the wind turbine blade extending in a spanwise direction between a root end and a tip end, wherein the blade comprises a surface-mounted device arranged on an exterior surface of the blade,

• wherein the surface-mounted device is a leading edge protection panel attached to the leading edge of the wind turbine blade, the leading edge protection panel extending in the spanwise direction comprising:
• a first section extending from the leading edge and along a part of the pressure side of the wind turbine blade to a first transverse end at a first position on the pressure side of the blade, the first section having a first extent from the leading edge of the wind turbine blade to the first position on the pressure side of the blade, and
• a second section extending from the leading edge and along a part of the suction side of the wind turbine blade to a second transverse end at a second position on the suction side of the blade, the second section having a second extent from the leading edge of the wind turbine blade to the second position on the suction side of the blade, and
• the first extent and the second extent having varying lengths in the spanwise direction, and
• a ratio between the second extent and the first extent varying in the spanwise direction.