LM Glasfiber launched the world's largest rotor blade at the Hamburg trade fair, though it only displayed a tip section of the blade's 61.5 metre length. "Despite its enormous proportions, material composition, and a new design and manufacturing processes have enabled us to reduce the weight to less than 18 tonnes, thereby lowering the cost price per kWh generated," the company says. The new blade is designed for a 5 MW wind turbine prototype soon to be installed by German turbine producer Repower Systems at a site near Brunsbüttel, Germany. The machine is destined for the offshore market. "In the slightly longer term we anticipate very strong demand for the type of turbines the LM 61.5P is designed for, not least in the offshore market," says LM, based in Denmark. When installed, the Repower 5 MW will be the biggest operating turbine in the world, along with German competitor the Multibrid 5 MW.