This team will inspect the blade as they descend from the centre of the turbine. The process is slow, relatively expensive, and requires significant health and safety management.
The use of a drone cannot totally replace the physical inspection to determine what maintenance is required, but importantly drones can be used to direct the activity of the climbing team more effectively and enable a more rapid coverage of the turbine and the Wind Farm site. The cost savings from the use of a UAV mean that turbines can be inspected more frequently if required.