Does anyone know the proper name for the clear spinning discs that large yachts and ocean going boats use? It should be about a 12" clear acrylic disc that has a small electric motor. I am thinking of making some for my boat after burning up the wiper motors for the second time. I think that the windshield 30" high is too much for the small motors and the large wiper blades.<br /><br />Thanks in advance, Thad
