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Electro Magnetic Rail Gun

  1. #16
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    Quote Originally Posted by SATISH View Post
    but can the artillery shell gain enough momentum when it is fired as much as conventional one?...And where will you get the power from?
    the power can be generated on a simple principle. the same as bulet train is running. JUST TO UNDERSTAND AND SCIETIFICALLY NOT SO PRICISE.......... we have A.C. current electricity. it has up and down wavelength. + and - poles can be generated by electricity supply to magnet. suppose when the wavelength is upside, magnet has + pole and when down side, it has - pole. when a + pole of barrel comes near to - pole of the shell, it creates attraction between them. and the same time current passes through and wavelength is changing from up to down so - pole is generated. now the - pole of barrel comes behind the -pole of shell. which pushes the shell further outside the barrel.

    infact, imo, it can generate more speed and can fire the shell at far distance means large range.


    › See More: Electro Magnetic Rail Gun

  2. #17
    DFI Technocrat SATISH's Avatar
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    Quote Originally Posted by khatarnak View Post
    the power can be generated on a simple principle. the same as bulet train is running. JUST TO UNDERSTAND AND SCIETIFICALLY NOT SO PRICISE.......... we have A.C. current electricity. it has up and down wavelength. + and - poles can be generated by electricity supply to magnet. suppose when the wavelength is upside, magnet has + pole and when down side, it has - pole. when a + pole of barrel comes near to - pole of the shell, it creates attraction between them. and the same time current passes through and wavelength is changing from up to down so - pole is generated. now the - pole of barrel comes behind the -pole of shell. which pushes the shell further outside the barrel.

    infact, imo, it can generate more speed and can fire the shell at far distance means large range.
    Where will you get the power from?
    After WW2 we thought we would have peace...but no! We used up nearly 6 decades just to invent newer methods and ways to kill more people if WW3 were to happen....

    It always takes a Psychotic mass murderer to destroy a lunatic....Ironic isn't it?

    Victory has many fathers, but defeat is an orphan.

    Peace is a delusional word....It is nice to rant about it but it is of no use. There are just 2 things in this world, War and Truce. In Truce you make weapons and in war you fight with them.

  3. #18
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    Is it developed by india or they going to use in future ,if not then it should go to world weapons watch.Is't it

  4. #19
    Moderator LETHALFORCE's Avatar
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    I had started a thread on this long back. http://www.defenceforum.in/forum/bom...-5-wallop.html. US navy is currently working on a rail gun which will reach MACH 7, a lot of power is needed for the rail guns since they work onn electromagnetism. The navy is expected to receive the guns around 2020.
    The force of a 3.2kg projectile fired from a rail gun will be equivalent to hitting a target with a car(ford taurus sized) at 380mph.

  5. #20
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    Lethal , threads Merged.
    “Everybody wants to save the Earth; nobody wants to help Mom do the dishes.”― P.J. O'Rourke

  6. #21
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    Is this the project developed by usa alone and if so then is it possible for us to get this lethal weapons as p8i (we are first foreign customer)

  7. #22
    Moderator LETHALFORCE's Avatar
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    nat I don't think it is for sale yet, it still has to be inducted by US navy which maybe atleast another 10 years, since this is a game changing type of weapon USA will proably not even consider selling this for a long time to come.

  8. #23
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    EETimes.com - Navy demos railgun to fire projectiles 250 miles

    Navy demos railgun to fire projectiles 250 miles


    R. Colin Johnson
    EE Times
    (02/04/2008 1:48 PM EST)

    PORTLAND, Ore. An electromagnetic catapult, or railgun, is on track for deployment on U.S. warships around 2012, according to the Office of Naval Research (ONR).

    A railgun, which uses electricity to magnetically accelerate munitions down a track, shoots metal projectiles that hit targets at supersonic speed. They can also cause more damage than a high-explosive without collateral destruction. With GPS-enabled targeting accuracy of 15 feet, when shot from warships up to 275 miles away, the non-explosive railgun projectiles could also protect Navy personnel without requiring dangerous explosives onboard.

    In the Navy's latest test made history with the world's fastest muzzle velocity of 5,637 miles per hour--generating a record 10.6 megajoules of energy (1 joule = 1 watt-second). The test was performed at the Naval Surface Warfare Center (Dahlgren Va.).

    In 2009, ONR will decide whether to award contracts for deployment to BAE Systems PLC (Farnborough, U.K.) or General Atomics Technologies Inc. (San Diego) for the railgun. Boeing Co. (Chicago) and Charles Stark Draper Laboratory (Cambridge, Mass.) are vying for the projectile contract.

    If the Navy decides to deploy the railgun, it plans to have a final design in place for approval by 2012. Initial prototypes will probably shoot a single projectile, but plans for rapid-fire versions are already on the drawing board.

    The final design specification calls for a muzzle velocity of 5,760 mph for a weapon that is capable of launching a projectile in a parabolic ballistic path 94 miles high. It must strike targets within six minutes at 3,840 mph.

    Initial tests showed that targets can be obliterated by the kinetic force of the impact with pinpoint accuracy without shrapnel, which is the most common cause of collateral damage when using high-explosive munitions.

  9. #24
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    railgun

    GEARFILE railgun

  10. #25
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    Here is the original

    Original

  11. #26
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    Quote Originally Posted by SATISH View Post
    Where will you get the power from?
    ^^^ Look from the above picture the power is getting externally(battery of generator)

  12. #27
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    all this talk about rail guns brings about an interesting possibility, could rail guns herald the return to the era of battleships, albeit give rise to an era where the supremacy of aircraft carriers at sea is challenged by nuclear powered battleships carrying 6 or 9 big guns each.these babies could devastate CBG's all on their own .mmm! bring back the yamato's the bismarcks and the iowa's i say!

    i have attached one picture of such an interesting concept.new battleship?t1255237967
    "In modern warfare, a large army is not sufficient, it needs industrial potential behind it. If the army is the first line of defence, the industry is the second." -Field Marshal Kodandera "Kipper" Madappa Cariappa OBE

  13. #28
    DFI Technocrat bengalraider's Avatar
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    U.S Military forges ahead with railgun program

    blitzerlg
    General Atomics Blitzer Electromagnetic Railgun Completes Successful First Firing

    San Diego, Calif., October 22, 2009. General Atomics Electromagnetic Systems division (GA-EMS) has successfully fired multiple rounds for the first time in a prototype of its new Blitzer electromagnetic railgun air defense prototype system. These tests were performed at the US Army Dugway Proving Grounds under a contract with the Office of Naval Research. Testing is scheduled to continue through spring of 2010 and will culminate with the launch of tactically relevant aerodynamic rounds.

    Blitzer will provide transformational, leap-ahead air defense capability against a number of threats for both naval and land-based applications. With a muzzle velocity of more than twice that of conventional systems, Blitzer provides significant increases in standoff and lethality at lower cost without the need for propellant or high explosives.

    These tests are an important first step toward demonstrating the viability of a revolutionary technology that will significantly improve the safety and protection of our warfighters at sea and on land, says GA-EMS Division Vice President R. Scott Forney III. GAs internal investment in prototype development of both the energy pulse power system and Blitzer electromagnetic railgun continues to demonstrate our commitment to complement our customers efforts with transformational electric platform technologies. Confirmation of the electromagnetic design increases confidence in related launcher and all-electric technologies.

    General Atomics is a San Diego-based innovation firm with a 50-year history of successful solutions for environmental, energy, and defense challenges. Affiliated manufacturing and commercial service companies include General Atomics Aeronautical Systems, Inc., which produces the Predator family of unmanned aircraft systems.

    For further information, contact:

    Tom Hurn
    Director, Advanced Weapon Launcher Programs
    Electromagnetic System Division
    (858) 676-7233
    [email protected]

    Joel Patton
    Director, Advanced Programs and Strategic Development
    Electromagnetic Systems Division
    (703) 682-6838
    [email protected]

    Doug Fouquet
    Public Relations
    (858) 455-2173
    [email protected]

    For high resolution photo, contact:
    Nancy Hitchcox
    Marketing Communications Manager
    Advanced Technologies Group
    (858) 455-3951
    [email protected]
    "In modern warfare, a large army is not sufficient, it needs industrial potential behind it. If the army is the first line of defence, the industry is the second." -Field Marshal Kodandera "Kipper" Madappa Cariappa OBE

  14. #29
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    The Bae gun

    Pop Mech Rail Gun


    World's Most Powerful Rail Gun Delivered to Navy
    Popular Mechanics | Erik Sofge | January 25, 2008
    For true sci-fi fans, any mention of a real-world rail gun will draw an instant, slightly audible gasp. Instead of relying on chemical propellants -- such as gunpowder -- a rail gun uses magnetic "rails" to launch a solid, nonexplosive projectile at incredible speed. Theoretically, rail guns would be able to precisely strike targets at extreme ranges, and would negate the risks associated with carrying around tons of explosive ammo. More to the point, they're cool-sounding, just like lasers.
    Which is why the news that BAE Systems has delivered a functional, 32-megajoule Electro-Magnetic Laboratory Rail Gun (32-MJ LRG) to the U.S. Naval Surface Warfare Center in Dahlgren, Va., is exciting. Installation of the laboratory launcher is currently under way, and according to BAE, this is the first step toward the Navy's goal of developing a tactical 64-megajoule ship-mounted weapon.

    The lab version doesn't look particularly menacing -- more like a long, belt-fed airport screening device than like a futuristic cannon -- but the system will fire rounds at up to Mach 8, drawing on tremendous amounts of electricity to generate the current for each test shot. That, of course, is the problem with rail guns: Like lasers, they're out of step with modern-day generators and capacitors. Eight and 9-megajoule rail guns have been fired before, but providing 3 million amps of power per shot has been a limitation. At 32 megajoules, this new system appears to be the most powerful rail gun ever built, and the Office of Naval Research is installing additional capacitors at the Dahlgren facility to support it. The planned 64-megajoule weapon, if it's ever built, could require even more power -- a staggering 6 million amps.

    According to Dr. Amir Chaboki, the program manager for Electro-Magnetic Rail Guns at BAE Systems, "The power is available. The challenge is how you use it." The Navys electrically propelled DDG 100 Destroyer, Chaboki says, is a prime candidate for the final 64-megajoule system. Around 72 megawatts (MW) of the vessel's power can be used for propulsion. But during combat, the destroyer's speed could be brought down, freeing up energy for a rail gun. Chaboki calculates that firing the 64-megajoule weapon six times per minute would require 16 MW of power, which would be supplied by either onboard capacitors or pulsed alternators. The more daunting challenge is the force of the rail gun itself: A few shots can dislodge the conducting rails -- or even damage the barrel of the gun.

    While the 32-MJ LRG should start firing soon, it could take another 13 years for a 64-megajoule system to be built and deployed on a ship. The Marines, in particular, are interested in the potential for rail guns to deliver supporting fire from up to 220 miles away -- around 10 times further than standard ship-mounted cannons -- with rounds landing more quickly and with less advance warning than a volley of Tomahawk cruise missiles.

    Effective rail guns will require a major breakthrough in materials between now and 2020, to keep the guns themselves from being shredded by each high-velocity barrage. Which means that for now, rail guns are precisely like lasers in one crucial way: They're Holy Grails, irresistible precisely because they're out of reach.
    "In modern warfare, a large army is not sufficient, it needs industrial potential behind it. If the army is the first line of defence, the industry is the second." -Field Marshal Kodandera "Kipper" Madappa Cariappa OBE

  15. #30
    Moderator LETHALFORCE's Avatar
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    http://nextbigfuture.com/2008/02/rai...ce-launch.html

    Railguns for space launch


    The source of this post is this 10 page IEEE paper, Launch to Space With an Electromagnetic Railgun by
    Ian R. McNab, Senior Member, IEEE The cost of electricity for a launch will be negligible, as shown below. Barrel life is central to the successful economics for this system. A system might cost $1.3 billion and launch for $500/kg. Recent tests fired 7 pound projectiles at 5637 mph. Lunar escape velocity is 5,324 mph. So the truck sized system is already good enough to launch from the surface of the moon. Classic science fiction "the Moon is Harsh Mistress" by Heinlein could become reality.

    Other gun launch systems were reviewed and found lacking:
    Only Electromagnetic railguns seem worthy of further study for this application.

    This choice was made on the basis that:
    • they have already achieved 7 km/s at small scale, and 10.6 MJ at 2–3 km/s (with a test system able to go to 32 MJ) ;
    • significant development is being funded for military applications;
    • they offer the possibility of achieving the muzzle velocities and energies required;
    • the potential cost savings seem significant based on our estimates.

    Methods of accelerating large masses in large bore railguns will need to be developed, and some concepts are suggested here.


    The muzzle velocity in the range needed for a moon-based launch system have already been achieved in the recent test firings. (about 2.5 km/s). Then it would just be a matter of scaling up energy linearly for heavier masses. (E=MC**2). The 10.6MJ system shot a 7 pound shot. The current 32MJ could fire 21 pounds (10kg) at the desired speed. A 320MJ system could fire 100kg payloads. Using resources available on the moon, this could serve as the forward base for sending material to Mars in support of a manned mission or to supply orbital infrastructure around the earth.

    The extension of this technology to the muzzle velocities ( 7500m/s) and energies ( 10 GJ) needed for the direct launch of payloads into orbit is very challenging, but may not be impossible. For launch to orbit, even long launchers ( 1000 m) would need to operate at accelerations 1000 gees to reach the required velocities, so that it would only be possible to launch rugged payloads, such as fuel, water, and material. Estimated launch costs could be attractively low ( $600/kg) compared with the Space Shuttle ( $20 000/kg), provided that acceptable launch rates can be achieved.

    So triple the muzzle speed and increase power by 1000 times the current test level or 330 times the current 32 MJ system.

    A disadvantage of gun launch is that the launch package has toleave the gun barrel at a very high velocity ( 7500 m/s) through the Earth's atmosphere, leading to a very high aerothermal load on the projectile.

    However, the current 32 MJ system is only about the size of a truck. So a nice big scramjet that could fly at Mach 10-12 could use a moderately scaled up version of the rail gun current system to fly above most of the atmosphere and then fire hardened payloads into orbit. Then less heat shielding would be needed.

    To provide 500 tons/year to orbit would require 2000 launches/year—a little over five per day on average.

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