Tag: blades

  • Wind turbines blades materials

    A fundamental aspect in the wind blades design is the choice of the correct materials, because several parameters (weight, load and fatigue behaviour, physical properties, etc.) are influenced by this basic decision. Several years ago materials as varied as wood, steel and aluminium where used to produce wind blades. The first wind blades where made…

  • Wind blade special transport: 45 degrees lifter for montainous roads

    This is a blade special transport system that I’ve seen used by Enercon, for instance for Europe highest wind turbine in Europe, in Switzerland, but is not so common otherwise. It is a hydraulic lifter, which allows lifting the wind blade up to approximately 45º. Doing so it can guarantee important saving on the civil…

  • Carrying blades with a balloon

    In very complicated wind farms blades and sometimes other components are carried by helicopters – an expensive solution, to be used only as “last option”. What I’ve discovered today is that a balloon was used by CL CargoLifter to carry the blades in a small scale test made for Nordex at the former airport of…