Chinese National Defense University professor: electromagnetic rail gun has six outstanding advantages

• Although tests only when the pieces of the picture, but the high-speed camera captured the moment of emission of electromagnetic shells photos, or gives a strong visual impact …

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presumably seen the movie “Transformers 2″ friends still remember such a scene, seeing the movie the pyramids of Egypt will be giant Hercules dig, the critical moment, the U.S. military to enable the “secret weapon”, that is, the Navy destroyer electromagnetic rail guns, hundreds of kilometers across, accurate down to this guy.

now, this sci-fi movie where the camera into a reality.

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Recently, media have reported that the U.S. Navy in Virginia Da Gelun Surface Warfare Center conducted electromagnetic rail gun test, although tests only when the pieces of the picture, but the high-speed camera captured the moment of emission of electromagnetic shells photos or give a strong visual impact.

electromagnetic rail gun research and development has a kind of history? As a high-energy weapons, electromagnetic rail gun applications prospects? CHN power network www.chnqiang.com

electromagnetic rail gun developed by the new progress

guns, electromagnetic launch technology is made of an advanced kinetic energy weapons. With the traditional cannon propellant gas pressure acting on the projectile is different guns is the use of electromagnetic force in the electromagnetic system, its role in the much longer, can greatly improve the speed and range of the projectile, which attracted world strategist attention.

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rail guns formed by the two parallel rails, the projectile sandwiched between two rails. Access to two rail power supply, current flows through a guide rail shot and then produce a strong flow of another magnetic field, magnetic field and current interaction, the Lorentz force to promote a strong shot to reach very high speeds, even in theory can reach sub-light speed.

announced the news this trial although very few, but there are few data concern, that is 33 trillion joules of energy, seven times the speed of sound, 200 nautical miles. 1 MJ of energy which is equivalent to a one-ton car to 160 km high speed crashed into a target of energy, 33 MJ of energy is how big a number. In addition, the electromagnetic pulse emitted power is about 10 times the force of artillery firing, so use it to launch a projectile at high velocity. General artillery firing rate of about 0.8 km/s, rifle bullets, shooting speed is l km/sec. And the test to the 3-kilogram aluminum projectile accelerated to nearly 2 km/s, taking into account its 200 nautical miles (nearly 370 km) range, its power can be imagined. bbs.chnqiang.com military forum

In fact, in recent years, the United States has several “milestone” in the type of test. In April 2003, the U.S. Navy in Scotland County Cole Kubu Li successful launch of 90 mm caliber guns and ammunition at sea hypersonic demonstration test.

2004 In February, the U.S. Naval Research Advisory Committee guns marine technology research group published an evaluation report. The report concluded that guns is a potential weapon of transformation, is a target beyond 200 nautical miles a fatal blow to the implementation of a revolutionary combat system guns, ammunition and also has larger reserves, reduce costs and logistical needs of other advantages. The study is to give a big mistake. And suggested that the Navy start research programs to ensure that the kinds of weapons for the future destroyer program.

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2008 年 1 31 morning, U.S. Navy Surface Warfare Center Dahlgren, a trial was known as “the world’s the most powerful electromagnetic railgun. ”

In this trial, shells collide with speeds of up to 7 times the speed of sound emission energy up to a record 10.68 trillion joules. In accordance with general expectations of the U.S. Navy, U.S. Navy guns will be the main weapon of the future warships.

2009 mid-February, BAE Systems from the U.S. Department of Naval Research awarded a $ 21 million contract for the U.S. Navy to develop more advanced electromagnetic rail gun, the contract period of 30 months, including sample drawing design and delivery of a prototype electromagnetic rail gun. Under the contract, BAE Systems will develop more advanced electromagnetic rail gun technology, including composite barrel launch technology, and in 2011 into the demonstration phase. This year is the development of this test should be a phased process of testing and inspection.

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electromagnetic rail gun is not new stuff

electromagnetic rail gun at the French Wheeler Lubo invented in 1920. World War II, Germany, Dr. Han Sile carried out on a comprehensive study of the electromagnetic rail gun. To 1944, he developed a length of 2 meters, diameter 20 mm rail guns, can weight 10 grams of aluminum cylinder projectile accelerated to 1.08 km/sec. In 1945 he in turn two rail guns together, so that the initial velocity shells reached 1.21 km/sec.

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during World War II, the Japanese study electromagnetic rail gun acceleration sensor, and the 2 kg projectile accelerated to 335 m/sec.

a long period after World War II, when as a result of materials and electricity and other key issues can not be fundamentally resolved, resulting in disruption of the electromagnetic rail gun for a long time.

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starting from the 1970s, with some technical problems have been solved, making the electromagnetic rail The development of artillery to make a comeback, Germany, Australia also joined the ranks of developed.

1978, the U.S. Department of Defense has set up electromagnetic rail guns Development Advisory Committee and Technical Working Group and recommended to focus and coordination of national funding to develop guns. In 1991, the U.S. Department of Defense established the “Joint Committee on electromagnetic rail gun,” to coordinate the military, the Department of Energy, Defense Nuclear Agency and the Strategic Defense Initiative organization decentralized electromagnetic rail gun research.

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2001 In November, the U.S. Naval Institute by the parameters of high-tech research and development activities, a new type of modeling of electromagnetic rail gun system The main performance parameters: the rail gun must be installed on surface ships, and its weight is equivalent to 155 mm advanced gun system capable of the initial kinetic energy of 63 MJ and 2500 m/s (Mach 7.5) and initial velocity of launching 20 kg projectile. High-speed projectiles only 6 minutes to reach the target beyond 200 nautical miles, and the Mach 5 can target the implementation of the kinetic energy of the collision.

prominent, it is difficult to replace the benefits

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advantage of the electromagnetic rail gun is very conspicuous .

one projectile speed, high precision, long range, very powerful. With large kinetic energy of the projectile to its target by direct impact to destroy, extremely powerful. At the same time high flying speed can reduce the projectile flight time, the shells should not be disturbed, to ensure the accuracy of the shells.

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second shell, small size, light weight. Almost no use of electromagnetic artillery propellant, reducing the loading dose, so the shells the size of conventional 120 mm artillery shells only one-eighth, one-tenth of its weight, this can significantly increase the amount of weapons systems to carry bombs to reduce the logistics burden. Now ships can only carry 70 guided missiles, and electromagnetic artillery is able to easily track a load hundreds of rounds.

Third projectile stability. Projectile in the barrel guns are thrust in the electromagnetic force, this force is very uniform, and easy to control the electromagnetic thrust, so the projectile stability, which will help improve accuracy. military strategy Station www.chnqiang.com

four is a good hiding. Guns in the firing does not produce flame and smoke, do not produce shock waves, so the more covert operations, the enemy can not easily be found. Moreover, it uses low-level fuels for energy, instead of conventional powder. This is conducive to the safety of the launch site.

Fifth projectile fired power adjustable. According to the nature and range of target sizes can quickly adjust the size of the electromagnetic force to control the launch of the projectile energy. CHN strong network community bbs.chnqiang.com

six is ??more economical. Compared with conventional weapons, artillery propellant produced per joule of energy for 10 dollars, and guns only $ 0.1. If compared with other space weapons, guns even the economy.

long road but the future prospects

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Although the electromagnetic rail gun made such rapid progress, However, electromagnetic launch research in technology is likely to continue over a decade due to volume and equipment on the premise that the ships must be equipped with it can produce enough electricity. Now in addition to DDG-1000 ship integrated power system, it also is not what ships can generate and store electrical energy needed to fire.

But of course, the electromagnetic rail gun as in the development of high-tech weapons, the military uses a wide range of future prospects are very bright.

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one can be used for space-based missile defense. Electromagnetic rail guns as high initial velocity can be used to destroy low-orbit satellites and space missiles, can intercept the ships and armored vehicles fired missiles. Thus, in the U.S. “Star Wars” program, electromagnetic rail guns become a major research task.

second is used for air defense. The U.S. military believes the future can be used instead of antiaircraft guns and antiaircraft weapons, air defense missiles carry out the task. It can not only fight against the invading a variety of aircraft, but also in the long-range intercept air-to-ship missiles. Britain is actively developed for armored vehicles, air defense guns. CHN strong Friends of the House home.chnqiang.com

third is used for anti-armor. U.S. shooting trials prove that guns are an effective means to deal with armored tanks. Launch mass of 50 grams, a speed of 3 km/s shells, penetrate 25.4 mm thick armor. Thus, the guns has a strong penetrating power, is a very good anti-armor weapons.

fourth is used to modify conventional artillery. With the development of electromagnetic launch technology, gun muzzle in the general installation of electromagnetic acceleration system, can greatly improve the artillery range. United States to use this technology, has increased to 150 km range artillery. bbs.chnqiang.com military forum

it is not difficult to imagine the future, a frigate of 300 kilometers to obtain command of the position coordinates of the enemy, but it does not launch value $ 1 million Tomahawk cruise missiles to destroy targets, but from the barrel of the superconducting emits an electromagnetic track about 1 m, weighing about 20 kg of shells, the shells of the power source neither gunpowder, but also not a fuel, but from the cannon into the ship’s engine power.

shells with more than seven times the speed of sound off the bore out, flying out of the Earth’s atmosphere, followed under the guidance of the satellite re-entry, straight toward the target, it was so incredible speed It has enough action to make the target vanished in an instant. This may become a reality in the near future. CHN network of military strategy of power stations www.chnqiang.com