Speedboat or high speed watercraft with dynamic hull

Abstract

The vehicle can be referred as a type of speedboat, because it is designed for very high speed on water. Preferably, the vehicle consists of a hollow shell 1 of circular section that floats and spins on the surface S of the water. The engine 2 , which also includes the cabin, is located inside the shell 1 . The output shaft of the engine 2 drives the shell 1 about axis O. As the shell 1 spins, the viscous forces between the spinning surface of the shell and the liquid, cause movement of the vehicle. Means of preventing counter rotation, of the engine 2 inside the shell about axis O are included. This is provided by the weight of the engine, which hangs low and off-centered about axis O; and by the aerodynamic uplift acting on the tail 3 , through the lever arm action on the frame of the engine 2.

1 . A watercraft comprising of one or more dynamic bodies or components, partly immersed, equipped with blades or paddles on the external perimeter that are in contact with the liquid element, rotating about an axis perpendicular to the direction of travel of the watercraft and driven by an engine, whereby the non-rotating part of the engine is connected to a means or mechanism that produces a counter-torque so as to prevent rotation of the non-rotating part of the engine when the dynamic bodies are rotating. 
   
   
       2 . A watercraft as claimed in  claim 1  where the means to produce counter-torque consist of having the axis of the mass center of the engine off-set from the axis of the output shaft of the engine. 
   
   
       3 . A watercraft as claimed in  claim 1  where the means to produce counter-torque comprises of components which produces an upward force and which are connected to the non-rotating part of the engine by connecting parts, so as to form a lever arm. 
   
   
       4 . A watercraft as claimed in  claim 1  where additional components are connected to the non-rotating part of the engine for the purpose of steering and improving stability. 
   
   
       5 . A watercraft as claimed in  claim 1  where the dynamic bodies or components are designed and shaped so as to provide buoyancy in order to keep the watercraft afloat. 
   
   
       6 . A watercraft as claimed in  claim 5  which consists of a single dynamic component of hollow construction with the engine housed inside the component. 
   
   
       7 . A watercraft as claimed in  claim 6  where the shape of the dynamic component maybe spherical for high stability. 
   
   
       8 . A watercraft as claimed in  claim 6  where the frontal profile of the dynamic component is shaped, in order to have a very low aerodynamic drag. 
   
   
       9 . A watercraft substantially as herein described and illustrated in the accompanying drawings.