Design possibilities of a modular vehicle (split from designing a fast rowboat) The rowing boats are obsolete, since the creation of this kind of...
Hi Everybody, I built a new prototype of my invention, and redesigned my site. During these 4 year after my first post, I stayed studying and...
Hello! I developed and patented, in 1997, a personal aquatic vehicle, that can easily become a multi-user boat. It competes directly with...