Method and apparatus for low drag watercraft

摘要

In one embodiment of the invention, a watercraft has belts along its outer surfaces.

主权项

1. A self-propelled watercraft comprising:
a hull having first and second rotatable rollers; a belt mounted between the first and second rotatable rollers; a motor connected to the first roller for rotating the first roller; a sensor for determining the speed of the watercraft through the water; a sensor for determining the surface speed of the belt; and a controller connected to the motor for adjusting the surface speed of the belt to match the speed of the watercraft through the water.