The Lafforgue's Field Propulsion Thruster
Theory and principle
By Jean-Louis Naudin and Mike Ady
created on January 20, 2002 - JLN Labs - Last update Februrary 2, 2002
All informations in this page are published free and are intended for private/educational purposes and not for commercial applications

The LFPT is a technology patented by Jean-Claude Lafforgue and uses electrostatic forces to generate a thrust on an isolated system. Such a revolutionary system is able to move in full space vacuum by using an asymmetrical electrostratic pressure acting on a specially shaped device.

Isolated systems self-propelled by electrostatic forces  by Jean-Claude Lafforgue ( France )
No. Publication (Sec.) : FR2651388 
Date de publication : 1991-03-01  
The electrostatic forces are "generated" by the interaction of polarised atoms (q) on an electric vector field (E), i.e. F=q.E, positive or negative according to the sign of (q). By suitable geometry of the polarised armatures, and/or by the use of electric charges induced by induction effect, and/or by the use of suitably arranged dielectrics, it becomes possible to break the symmetry of the expansion forces on one of the axes of the three-axis reference system and thus to obtain a non-zero resultant force (Fn). The isolated system is then propelled, and it draws the charges (q) and (E) along with it, thus F=q.E remains constant. This force can be used as a means of propulsion for any vehicle or even as motive force for producing energy.

The text below, is an english translation of the main part of the Lafforgue's patent about his theory. We have done some minor changes and improvements about the calculation of the thrust, they are now a bit more accurate.

Expansion Force Resulting from an Asymmetric Electrode Geometry
by Mike Ady and Jean-Louis Naudin - February 1, 2002

Check the Lafforgue's calculations with LFPT Solver v2.0

See some LFPT E-Field simulations

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