
The electric cannon, also known as a railgun, was invented by French inventor André Louis Octave Fauchon-Villeplee in 1918. Railguns are linear motor devices that use electromagnetic force to launch high-velocity projectiles. They are typically designed as ranged weapons and use a pair of parallel rail-shaped conductors along which a sliding projectile is accelerated by electromagnetic effects. Fauchon-Villeplee created a small working model in 1917, which caught the attention of the French military, leading to the development of a 30-50mm electric cannon the following year.
| Characteristics | Values |
|---|---|
| Name of the electric cannon | Railgun |
| Inventor | André Louis Octave Fauchon-Villeplée |
| Year of Invention | 1917 |
| Size of the model | Small working model |
| Year of Commission | 1918 |
| Commissioner | Jules-Louis Brenton, French Director of Inventions at the Ministry of Armaments |
| Diameter of the cannon | 30-50mm |
| Patent filing date | 1 April 1919 |
| Patent issue date | July 1922 |
| Patent number | 1,421,435 |
| Patent name | Electric Apparatus for Propelling Projectiles |
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What You'll Learn

Andre Louis Octave Fauchon-Villeplee invented the electric cannon
Fauchon-Villeplee was a French inventor who first introduced the concept of the railgun. He created a small working model in 1917 with the help of the Société anonyme des accumulateurs Tudor (now Tudor Batteries). This caught the attention of the French military, who sought a weapon that could rival long-range cannons such as Germany's "Paris Gun".
On July 25, 1918, Fauchon-Villeplee was commissioned by Jules-Louis Brenton, the French Director of Inventions at the Ministry of Armaments, to develop a 30mm to 50mm electric cannon based on his design. However, with the end of World War I later that year, the project was abandoned. Fauchon-Villeplee continued to pursue his invention, filing for a US patent in 1919, which was issued in 1922 as patent no. 1,421,435 "Electric Apparatus for Propelling Projectiles".
The railgun uses a pair of parallel rail-shaped conductors, along which a sliding projectile called an armature is accelerated by electromagnetic effects. This results in much higher velocities than can be achieved through explosive forces. The concept of railguns has continued to be an area of interest for military research due to their potential advantages over traditional weapons. However, challenges such as wear and tear, power supply, and heat generation have also led to their limited deployment.
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The French military sought a long-range cannon
Fauchon-Villeplee first introduced the concept of the railgun, a type of linear motor device that uses electromagnetic force to launch high-velocity projectiles. On July 25, 1918, Jules-Louis Brenton, the French Director of Inventions at the Ministry of Armaments, commissioned Fauchon-Villeplee to develop a 30mm to 50mm electric cannon based on his earlier design.
The railgun uses a pair of parallel rail-shaped conductors, along which a sliding projectile called an armature is accelerated by electromagnetic effects. This technology can launch projectiles much further than those launched via chemical reactions. While Fauchon-Villeplee's electric cannon showed promise, the project was ultimately abandoned when World War I ended later that year.
Despite the early promise of railgun technology, it has faced numerous challenges that have prevented its widespread adoption. One major issue is the immense wear and tear on the gun itself due to the high levels of current required to operate it. The powerful electrical currents necessary to generate the desired electromagnetic effects can damage the rails and other components, limiting the lifespan and reliability of the weapon.
In addition, the development of railguns has been hampered by the significant amount of energy required to power them. This has been a particular challenge for military applications, where portability and limited space on vehicles or vessels further complicate the integration of railguns. Despite these challenges, several countries, including the United States, the United Kingdom, India, and China, have continued to invest in railgun research and development, recognizing the potential advantages of this technology over conventional weapons.
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Fauchon-Villeplee's design was 30-50mm
The French inventor André Louis Octave Fauchon-Villeplee created a simple electric cannon, which was a revolutionary concept at the time. Fauchon-Villeplee's design was 30-50mm and was based on the principles of the linear motor. The French military sought a weapon that could rival Germany's long-range cannons, such as the "Paris Gun".
Fauchon-Villeplee's design was commissioned by Jules-Louis Brenton, the French Director of Inventions at the Ministry of Armaments, on 25 July 1918. The design was based on a working model Fauchon-Villeplee had created in 1917 with the help of the Société anonyme des accumulateurs Tudor (now Tudor Batteries). The model was a railgun, a type of linear motor device designed as a ranged weapon that uses electromagnetic force to launch high-velocity projectiles.
Railguns typically consist of two parallel metal rails along which a sliding projectile called an armature is accelerated by electromagnetic effects. The projectile does not contain explosives but relies on its high kinetic energy to inflict damage. Fauchon-Villeplee's design used a pair of parallel busbars connected by the wings of a projectile, with the entire apparatus surrounded by a magnetic field.
While Fauchon-Villeplee's design was never fully realised due to the end of World War I, the concept of railguns and directed-energy weapons continued to be explored and developed. Today, railguns are still being researched and tested by various military organisations, including the US Navy and the British and American governments. However, challenges remain, such as the wear and tear caused by the high currents required to power these weapons and the potential for the weapons to break after a few uses.
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The project was abandoned after WWI
The electric cannon, also known as a railgun, was invented by André Louis Octave Fauchon-Villeplee in 1918. Fauchon-Villeplee created a small working model in 1917 with the help of the Société anonyme des accumulateurs Tudor (now Tudor Batteries). The project was abandoned after WWI for a number of reasons. Firstly, the war had ended, and with it, the immediate need for such a weapon. Additionally, the technology of the time presented several limitations and challenges. For instance, railguns require a long and heavy barrel, which affects their portability and ease of use. Furthermore, the immense pressures, stresses, and heat generated by the millions of amperes of current necessary to fire projectiles result in significant wear and tear, causing many prototypes to break after just a few uses.
Another challenge is the amount of power required to operate a railgun. They require a large power source, which limits their mobility and makes them less suitable for certain applications, such as on board a ship. The current can also damage the rails and other electronic equipment, and the friction between the projectile and the rails generates heat, affecting accuracy and causing further damage. These technical challenges, combined with the end of the war, likely contributed to the decision to abandon the project at that time.
Despite the abandonment of the electric cannon project after WWI, the concept of railgun technology continued to be explored and developed over the following decades. The potential advantages of railguns over traditional explosive projectile weapons, such as their increased range and higher velocities, have driven continued research and investment. For example, in the 1990s, India's DRDO Armament Research and Development Establishment developed a railgun capable of launching projectiles of 3-3.5 g weight to a velocity of more than 2,000 m/s.
The US Navy has also shown a strong interest in railgun technology, with their electromagnetic railgun programme aiming to develop a weapon that can launch projectiles at Mach 10 without explosives. However, the programme has faced scientific and budgetary challenges, including the issue of wear and tear caused by the powerful electromagnetic technology. While railguns have been portrayed in popular culture, such as in video games and novels, they have yet to become a widely adopted weapon system due to these technical challenges and the high energy requirements.
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Railguns are a type of electric cannon
In 1918, French inventor André Louis Octave Fauchon-Villeplee created an electric cannon, also known as a railgun, based on the principles of the linear motor. The concept of the railgun was first introduced by Fauchon-Villeplee, who created a small working model in 1917. During World War I, the French Director of Inventions at the Ministry of Armaments, Jules-Louis Brenton, commissioned Fauchon-Villeplee to develop a 30mm to 50mm electric cannon.
The railgun concept is based on the idea of using a large circuit to launch a projectile much further than one launched via a chemical reaction. This technology has been discussed for decades in military and defence circles, and various countries have researched and tested railguns as potential weapons. For example, the British and American governments have collaborated on a railgun project since 1993, and India's DRDO Armament Research and Development Establishment developed a railgun in 1994.
One advantage of railguns is that they can offer much higher velocities than traditional explosive projectile weapons. The accelerating force is applied to the projectile for the entire time it is between the rails, resulting in potential velocities of Mach 10 at sea level, or more than three times the muzzle speed of an M16 rifle. This increased velocity could provide a range of up to 220 miles, which is around ten times further than any other gun.
However, there are also several challenges and limitations associated with railguns. They require a large and powerful electrical current, which can limit their use to fixed locations. The current can also create serious wear and tear, damaging the rails and reducing the accuracy of the weapon. The magnetic fields generated during launch can interfere with electronic equipment, and the heat generated by friction can make the railgun easy to detect.
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Frequently asked questions
The French inventor André Louis Octave Fauchon-Villeplee invented the electric cannon in 1918.
An electric cannon, also known as a railgun, is a linear motor device that uses electromagnetic force to launch high-velocity projectiles.
Railguns are typically designed as ranged weapons. They can be used against both surface and airborne targets.
Railguns use a pair of parallel rail-shaped conductors, along which a sliding projectile called an armature is accelerated by electromagnetic effects.
Railguns can deliver area-of-effect damage by detonating a bursting charge in the projectile, unleashing a swarm of smaller projectiles over a large area. They also have the potential to be more accurate and devastating than traditional cannons.

































