For the  new generation of  marine crafts  we have to leave to a great part the static mechanic models for the Hydrogen Dynamic Technology. The concept of the "Dynamic Stability" includes various hydroskimmers, They all have the same working principle. 

Working principle. 

Due to the special configuration of the propulsion force, the vehicle becomes manoeuvrable with great precision. The lower wing surface receives a special finishing and treatment, so that, during flight, it becomes electrically charged due to the friction. The fin has an aerodynamic function which increases as the vehicle gains in speed. Composite materials have been chosen where necessary, because of their strength, flexibility and lightness, specially where the fin is concerned. 
The high lifting capacity at low speed is achieved by the water pressure on the hydrodynamic fin as well as by the energy pressure on the natural centre. The resistance decreases very quickly, and when the pressure on the natural centre increases and the vehicle enters an electric track,  the speed increases and the influence of the gravity force  on the vehicle dicreases remarkably. When taking turns, the centrifugal forces have almost no  impact on this marine vehicle since the natural centre is continuously being kept under control. 

The "Internal Dynamics" directly refer to the natural centre which is situated very near the centre of gravity. Whereas the centre of gravity tends to move and cannot be controlled, the internal dynamics aim at getting the natural centre under control and at keeping it so during all phases of operation. By putting the required pressure on the natural centre, which is situated very low, thus remarkably increasing the stability , and by means of the configuration of form and energy, a dynamic equilibrium is brought about in the vehicle. 

Due to the pressure executed on the interior part of the equilibrium and due to the resulting back-pressure, all corresponding power and vibrations of the equilibrium,  whatever be their nature, move towards one only fix  and unmovable point, where the corresponding energies are assimilated. The sum of these centralized forces transforms itself in the equilibrium towards a proper identity order of magnetic-electric power, called "the natural center". The natural center constructs itself right behind the center of gravity. Whereas the center of gravity is subjected to the gravity forces and tends to move at increased speed, the natural center, on the contrary, is inforcing itself as an electric-magnetising internal dynamic identity. 

The propulsions of the propellors aim, in the first place, at generating the "internal dynamics" and keeping control on them during the whole operation, by giving the necessary pressure on the equilibrium (natural center). Due to the configuration of form and energy, the dynamic stability of the vehicle is generated. That is why the vehicle is almost not subject to the general gravity force and because  the centripetal forces have but very little influence on the vehicle when taking turns. 
 

Direction 

Due to  the pressure generated by the propellors towards the "natural centre", i.e. the equilibrium of the vehicle, the  equilibrium becomes "dynamic" and  by manipulating the propellors, by giving a different vertical and lateral component in the pressure   force, the cross   lines are moving and touching at different points. Steering becomes very precise  by  differentiating the amount of rotations. 

  
The behaviour of Shark was studied by engineers as an object of a first  analysis of the mechanical model, which was necessary to prepare the text of the patent. 
Evaluation of the working principle of Shark was made by the University of Gent, Belgium (fluid) to confirm the engineers´ analysis, something they thought was necessary to support their analysis. These studies and analysis, however, were not necessary to improve the concept and could not apport any improvement to the working principle of Shark, which is the result of a (non analytical) "whole research". Also it must be said that these analysis exclusively concern the mechanical model, 
whereas the proper Know-How goes far beyond them and has to be  transferred by means of personal contacts.