Gardner Martin was a pioneer in recumbents. He got lucky cutting old 10 speeds apart and building long wheel base recumbents. He hit upon a good design and refined it, although I built a couple myself and they are surprisingly close to the geometry of a couple of ten speeds cut and welded together. Anyway, he died recently, his company is Easy Racer. They build a steel long wheel base bike called a tour easy. The aluminum bike of the same geometry is called a gold rush replica, or GRR. He won a prize by operating a highly modified Gold Rush at 65 MPH for like 200 meters. Interesting fact, He and his girl friend are the couple on the blanket in the woodstock picture.