The ground or surface speed depends on the efficiency of the conversion of the initional wind energy (which is also course depending) and the...
Hi Windmaster A boat or land vehicle can certainly sail up or downwind faster then the wind. The fast 18 footers and skate sailing wings have...
Hi Globaldude This story might be true. It is exactly what I have in mind. Is'nt any tacking sailboat just a small part of a hugh windturbine...
Wind turbine powered Hi Pete, Your wind turbine looks wel designed and it worked. That's great. The underwater propelling device is also very...