Military of China, force comment.
Military of China, force comment.

<span class="img_descr guided bullets appearance the laser-guided bullets test flight trajectory <span class=img_descr "the U.S. military used to launch smart bullets XM25 rifle

the beginning of February, the United States Lockheed Martin Sandia National Laboratories announced the development of a similar darts laser-guided bullets . This laser-guided bullet 4 inches long (about 10.16 cm), point 50 caliber (referring to the cartridge case diameter of 0.5 inches, or about 12.7 mm) gun family weapons. The researchers said the laser-guided bullets during the flight can automatically adjust the direction, the same as mini-missiles hit one mile (about 1.6 km) outside the target. This bullet can be extensive equipment of the army, thereby enhancing the shooting of the hit rate, ordinary soldiers also have the magic sniper marksmanship. Born the

hit rate

According to reports, on the battlefields of Afghanistan and Iraq, due to factors such as weather, wind speed, light, and the moving target impact U.S. soldiers often consume large amounts of bullets can not hit the target. In order to improve the range of weapons and shooting accuracy, the U.S. Defense Advanced Research Projects Agency (DARPA) as early as four years ago, a secret to start a named EXACTO (Extreme Accuracy Tasked Ordnance) project, that is, a range of up to 5 km high-precision weapons project. Sandia, Lockheed Martin is responsible for the development of this laser-guided bullets It is EXACTO part of the project, although present in the initial development phase, but its ultimate goal is to develop a search and targeted and accurately hit the target of bullets. The unique design of the

eyes after long fins “

People often say that” bullets do not have eyes, but this story is in the laser-guided The bullets have to modify it before. Bullets in the traditional sense of the different laser-guided bullet broke through the inertial trajectory of the bullets fired from the threaded barrel, straight flight, opened up the power curve of flying precedent, direct subversion of the traditional shooting principle.

guided bombs, guided missiles already is not surprising, but developed a bullet there is some difficulty with the guidance function. Smaller because of the caliber of the bullet, in which you installed guidance device and flight control devices is a very difficult thing. With the rapid development of information technology, laser-guided technology and artificial intelligence technology, Sandia National Laboratories researchers to overcome these challenges.

within the laser-guided bullet has a unique micro-control system comprises two main components: First, the guidance system. An optical sensor front-end the bullets have to search, laser-guided track toward the target point, the internal sensors can target the ever-changing information timely passed to the guidance and command elements, the latter through an 8-bit central processing unit to calculate the flight path, and directing the electromagnetic actuators. Transmission, a drive motor and a similar “fins” micro Collembola, the drive motor for the drive system to provide continuous power, micro Collembola constantly rotating, adjust the direction, control bullets circuitous twists and turns in hitting goals. Therefore, it was the image of the type of bullets called “long before the eyes, long fins” and “head” and “smart bullets”.

mini version of “micro-laser missile

compared to target shooting old-fashioned weapons, laser-guided bullets apparently infantry personal weapons into a new era. Allegedly different from ordinary bullets, this laser-guided bullet does not rely on the groove or thread rifling to achieve high-speed rotation, in order to maintain a straight flight. It uses a unique smooth-bore design, do not have to rotate after a bullet fired miniature tail fins “during the flight, according to the information to adjust the direction of target movement, complete trajectory deviate from automatic guidance and accurately hit the target . The researchers said, per second, it can automatically adjust the navigation path 30 to be able to shoot with great precision the effect.

the

researchers through computer aerodynamics simulation tests and found that the ordinary bullet by outside influence each advance one kilometer away from the goal at least 9.8 meters, and this laser-guided bullets in the same circumstances would only deviate from the 0.2 meters. Its unique tail can adapt to changes in aerodynamics, wind speed and the role of gravity in a certain limit, offset, thereby increasing the targeting and shooting distance, improve operational effectiveness.

Sandia National Laboratories researchers said the soldiers on the battlefield in the use of laser-guided bullets, do not need to rely on sight for accurate targeting, as long as the target, regardless of which direction the shooting, the bullets will laser navigation self-amendment, to adjust the direction of flight, more quickly and accurately hit the target. This greatly weakened the role of the sniper known as “death,” said some people laugh at that, “snipers laid off; also been said that” ‘three-point line’ will soon become past tense. Guided bullets, there is a prominent feature: the ability to combat the enemy hidden in the walls, trenches, stone, or house.

this laser-guided bullets have broad prospects for development. Just think, maybe in the near future, the soldiers filled with laser-guided bullets, musket armed, do not Danfei rain can do the one shot kill a. Therefore, some experts said the use of laser-guided bullets, marking the infantry of the oldest branches of the military have begun to enter the era of precision strike. The laboratory is responsible for claims that its potential customers include the military, law enforcement agencies.

deficiencies difficult to overcome

this laser-guided bullets have been tested successfully, the results are encouraging, but there are still some problems to be solved. The person in charge of even the Sandia National Laboratories have to admit that the biggest challenge existing scientific and technological content of this bullet, the cost is too high, resulting in the lack of R & D expenditure.

In addition, there are experts said, the lethality of the laser-guided bullets is not strong. Its muzzle velocity of 2400 ft/sec (about 732 m/sec), and standards military speed there is a gap. Meanwhile, because of its own is not the continued momentum, once during the flight to change the forward direction, will inevitably consume some momentum, so that its lethality and non-guided bullets weak.

talked about its deficiencies, was also noted that with this laser-guided bullets need laser pointer use will inevitably lead to its applicability is limited, large-scale equipment units made up of conventional weapons, to suit her special forces, snipers use. Some experts said that if the laser beam to indicate targets, so a guide can easily exposure. If the settings indicate points on the target in advance, will undoubtedly increase the coefficient of the difficulties of action. Seen in this light, the laser-guided bullets to the all-powerful in the future on the battlefield, there is still a long way to go.

extension of reading

new concept bullets Grand

1. smart bullets

U.S. troops on the battlefield in Afghanistan in 2010 for the first time to use the new XM25 rifle fired, the interior is equipped with a smart chip, can receive the wireless signal, fired by the The pre-program control detonated in flight to a certain distance.

Caseless bullets

“no shell” is relative to conventional metal casings. By fill in the high flammability binder in the propellant, and as packaging, propellant pressed into the powder column, warheads and primers were embedded at both ends of the powder column.

liquid bullets

liquid bullets, not to say that the bullet liquid, but the propellant is liquid. Firing, rely on the guns on the compression pump the liquid propellant into the combustion chamber firing warheads. Which is characterized by the ammunition lighter, helping to reduce the weight of the weapon system. Long bullets of

4. Long bullets

, by definition is a bullet with two or more similar warheads, once launched a number of warheads (usually 3 to 5), which is equivalent to the same time fired a few rounds of ammunition, can significantly increase fire intensity.

5 air-burst bullets

the bullets developed by the U.S. Army, is characterized by an explosion in the head of the enemy soldiers in the bunker, spray deadly metal debris so that it can not hide. Bullets internal electronic fuses, sensors, tracking dim light and thermal radiation can be used at night.

enhanced bullets

U.S. Marine Corps in 2010, the battlefield in Afghanistan, learning called “Special Operations Technology and ammunition” (SOST) most important feature of the open tip design, and with a lead nucleus, making the bullet more powerful, longer range, known as “the obstacle is invalid”, that is, penetrate the glass, walls and other obstacles, hit accuracy and lethality remains high. The British army developed the nickname “Dirty Harry” also belong to this type of bullet.

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