The document discusses railguns, including their history, parts, working principle, current research and development, advantages, disadvantages, and applications. Railguns use electromagnetic force to accelerate a conductive projectile along two parallel conductive rails. They were first proposed in 1918 and prototypes were tested in the 1970s. Current research aims to increase muzzle velocities for applications like launching satellites. Railguns offer higher velocities than chemical guns but challenges include thermal management and structural stresses on rails.

2. WHAT IS RAILGUN ?
HISTORY OF RAILGUN ?
PARTS OF RAILGUN
HOW DOES IT WORKS
CURRENT RESEARCH AND
DEVLOPMENT
DIFF B/N NORMALGUN AND RAILGUN
APPLICATION OF RAILGUN
ADVANTAGES AND DISADVANTAGES
FEATURES OF RAILGUN
CONCLUSION

4. First railgun idea was given by French inventor Louis
octave in 1918 by designed by an electric cannon.
In world war 2, the German commander luftusaffe
issued a specification for a railgun based anti-aircraft
gun.
The first railgun is tested in1970 at the Australian
National University
In 2003, Ian Nab planes to build a system to launch
supply into space using railgun technology

6. When the projectile is inserted between rails , it
complete circuit.
When supply is given to the rails behaves as an
electromagnet, creating a magnetic field inside the loop
formed by length of rails up to the position of armature.
According to the right hand rule magnetic field
circulates around each conductor.
Due to net magnetic field in rails (B) is directed at right
angle to the plane formed by central axis of the rails and
armature, in combination with current (I) in the armature.
This produce Lorentz force which accelerates the projectile
along the rails.

7. U.S.Navy achieved a 32MJ muzzle
kinetic energy with prototype.
Current range is capable of reaching
100nautical miles in several minute.
Maximum speed which achieved by a
railgun is 11km/sec of 3.6 kg projectile.
U.S researchers are going to launch a spacecraft
using railgun technology.

10. •

12. The railgun has a much larger possible power
than a powder gun.
The velocity of railgun is more compared to
other guns
Since the railgun depends entirely on a massive
current ,there is no need fuel or explosives. So
the weight of the entire system is reduced

13. One of the biggest problems is with maintaining the
structural integrity of the rails as the undergo such
stressful condition.
The thermal management of the entire system, especially
as the rails increase in size needs to improve.
The system is bulky.
Charging time of capacitors is high

14.  Satellite guided projectiles
Costing up to $25000 per projectile. Making easy to destroy
targets from long distances more accurately.
 Launching cargo into space
Because of the excessive acceleration, In order to
practical for launching cargo into space, Railgun would
need to be able to attain muzzle velocities of 11 km/s with
cargo much heavier than small projectile . In comparison,
effective ballistic missile interception requires muzzle
velocities of approximately 12 km/s.

15. • In railguns are a very intriguing technology and have
several exciting potential applications.
• While the physics of the electromagnetic phenomena are
fairly simple, implementation of the technology has proven to
be very difficult.
• The future of railgun development depends not only on
continued development of technology, but also on continued
financial support of railgun research.