Wind Farm Failures | Power For USA

Cracks like this are ground out. Then fiberglass is laid over the crack, with resin and more fiberglass added until the blade is restored to prescribed dimensions. The repairman then crawls inside the blade, by removing the bolted-on manhole cover, and repeats the process on the blade’s interior.

So we put a bandaid on a “school bus on a stick” and then spin it at 100mph. Will it last 20 years? I don’t think so…

via Wind Farm Rotor Failures | Power For USA.