But having built a hydroplane evocating the Blériot " Pnydre " without any plan, it does not frighten them. No main car manufacturer never bent over this type of vehicle. But the idea come back regularly on the drawing boards of diverse engineers and engineering consulting firm.

The Philippe Charbonneaux's Ellipsys, including a Porsche powered example visible in the Reims automobile museum, a Chinese project and more recently another one from Franco Sbarro prove it.

The Francis' experience about side-car should be useful in the success of this project, which is a tribute to the Issy les Moulineaux manufacturer.

Gabriel Voisin is a model of inventiveness and determination for the association. So, capable of drawing and of building an engine of 42 cylinders for the aviation, a singlepost microcar for the french post or an unsinkable boat.

In spite of contacts experimented besides the Rhine, it is difficult to determine exactly the arrangement of the central axle (and engine). To equal distance from front and rear wheels, as expected on a plan of 1967 or not? As several patents of the 30s plan it.

After brainstorming and theoretical tries, it is the unequally distribution which is choosen. The construction already begun by the frame prototype will allow to verify these data, and to eventualy modify the parameters.