When the wind blows on the tail wing, the tail of the projectile will be a little to the right (the warhead will naturally be to the left), while the rocket engine is still pushing, so the warhead will fly to the left.
2. The musket fires an arrow-shaped bullet with a tail. Bullets are different from rockets. After leaving the gun, fly only by inertia. When the wind blows on a big tail,
1, the tail is also on the right (the warhead is on the left),
2. Due to the lack of continuous thrust and the stability of the tail, it will be adjusted soon, and then continue to repeat the action of (1), and shift to the right in an unstable state.
My understanding (Bongomont) (I live in Xijiabao)
1, the rocket is not an inertial bomb, but it has a constant thrust of the rocket itself and a large wind resistance area at the tail. When the left wind blows,
When the wind blows on the tail wing, the tail of the projectile will be a little to the right (the warhead will naturally be to the left), while (1) the rocket engine is still pushing, so the warhead will fly to the left.
2. The musket fires an arrow-shaped bullet with a tail. Bullets are different from rockets. After leaving the gun, fly only by inertia. When the wind blows on a big tail,
1, the tail is also on the right (the warhead is on the left),
2. Due to the lack of continuous thrust and the stability of the tail, it will be adjusted soon, and then continue to repeat the action of (1), and shift to the right in an unstable state.
(2) there is power, and the tail is facing the wind.
People who have no power will go with the wind.
If there is motivation, if there is a lighter head, it will be stronger because of the downwind.
(3) I have fired 40 fires, 120 fires. They are all windward. The main reason is the large wind resistance at the back of the center of gravity. I also used a crossbow, which is also windward, and it has nothing to do with the strength of the launched thing. The resistance of the front part is small, and the resistance of the back part is large. Naturally, it leans in the direction of the incoming wind.
Ordinary rifles to special guns.
Many people have seen the American blockbuster Enemy at the Gates, which describes the confrontation between Soviet and German snipers in Stalingrad, but they don't know much about China's brilliant sniper record. In fact, the army led by Zhong * * * has been in a state of poor equipment and lack of ammunition for a long time since its birth, so it is difficult to pose an open formation, and the "sparrow war" of sniper fire has become a specialty. In the positional confrontation of the Korean War, the cold war movement of volunteers, that is, sniper activities, made the US military lose confidence, and the success rate of sharpshooters in killing the enemy was no less than that of other sniper trump cards in the world. During the Vietnam War, the US military was trapped by the sniper activities in Vietnam for a long time, and most of the senior snipers of the Vietnamese People's Army, that is, "American Warriors", were trained by China instructors in the training base in South China.
At that time, although China's army had a world-class sniper level, due to the backward ordnance level and long-term lack of special weapons, it could only choose ordinary rifles with better quality and higher precision, and soldiers with good eyesight observed with the naked eye without sight. 1965, the national defense scientific research department developed a sniper rifle at the request of the army, but it was not finalized because it was a non-automatic weapon of the direct-pull bolt, which was inconvenient to operate and difficult to extract the shell. During the 1979 war against China, the Vietnamese army personally felt the power of the 7.62mm sniper rifle of drago of the Soviet Union and copied it according to the captured model. In the same year, the first domestic sniper rifle, Model 79 7.62mm sniper rifle, was finalized and put into mass production in 198 1.
Compared with the sniper rifles equipped in other countries in the world at that time, the level of the Type 79 sniper rifle was basically the same. Its barrel length is 620 mm (longer than semi-automatic rifle 150 mm), which ensures the external ballistic performance and the stability of bullet flight. Type 79 sniper rifle uses 53 types of 7.62mm steel-core bullets (that is, 7.62× 54mm bullets made in Soviet Union), with a muzzle velocity of 830m/s and an effective range of 800m. This gun is equipped with sight (magnification is 4 times) for the first time among all kinds of light weapons in the People's Liberation Army, and has the functions of ranging and correction. The sight of the 79-type sniper rifle also has an infrared sensing screen and lighting device, which can be observed, searched and shot at night. But at this time, China's scientific and technological level is not as good as that of the Soviet Union, and the shooting accuracy of this imitation crystal is slightly lower than that of drago.
In the following years, China's military industry department introduced the improved Type 85 sniper rifle, with the same appearance, but the accuracy was better than that of Type 9 sniper rifle and drago sniper rifle of the former Soviet Union. After the Model 79 was delivered from the factory, it achieved good results in fighting in southern Xinjiang. Type 85 is the active equipment of the People's Liberation Army, and some armed police and criminal police who undertake special tasks are also equipped, which has also achieved good results in taking hostages and killing terrorists.
In order to earn foreign exchange through export, China's military department has also pushed the 79/85 sniper rifle to the international market and opened up the market. Its prototype is exported by Poly Company and called PDM-86. In order to adapt to the use of NATO standard bullets in various countries, North Industries also introduced a NDM-86 with a changed gun bore, and fired 7.62 X 5 1 mm NATO standard bullets from the West.
Although the 85-type sniper rifle is an excellent weapon with the Soviet-made Draganovo, it has recently become obsolete due to the change of war form. In the face of ordinary armored infantry, many policemen also ride riot vehicles. The 7.62mm caliber sniper rifle can only penetrate the 8mm steel plate within100m, which is not powerful enough to deal with light armored targets. This gun has a strong recoil and is difficult to operate. Mechanized troops are too long to carry, and street fighting is also very heavy (the whole gun weighs more than 5 kg). Under the new situation of emphasizing precision strike, this kind of gun is not enough to hit big and far targets, and it is inconvenient to operate in melee, which can be described as "neither high nor low".
The troops stationed in Hong Kong were first equipped with small caliber.
When PLA 1997 entered Hong Kong, soldiers took the lead in equipping the whole army with short type 95 5.8 mm automatic rifles. It is also equipped with KBU-88 5.8 mm sniper rifle. This weapon was exhibited by the troops stationed in Hong Kong when they opened their barracks for the public to visit. This world's smallest caliber sniper rifle has aroused great interest of military fans.
KBU-88 5.8 mm sniper rifle is an important member of China's 5.8 mm weapon system, and is known as one of the "three younger brothers" (the other two disciples are rifles with the same caliber and light machine guns). It is also the first self-developed sniper rifle in China. This gun is a semi-automatic weapon with air conduction. Its size is the shortest among international sniper rifles, its weight is light and its action is reliable. Designers rationally arrange the size and position of man-machine operation according to the specific figure and quality of China soldiers, so as to make the operation convenient and comfortable.
The total weight of KBU-88 sniper rifle is 4.2kg (the lowest among the active sniper rifles of the world famous army), the total length is 920mm, the aiming baseline length is 394mm, the magazine capacity is 10 rounds, and the assembled white light sight weighs 650g, with the maximum magnification of 9 times. The gun uses 5.8 mm machine gun bullets and machine gun tracer bullets. If necessary, you can also use 5.8 m ordinary bullets and ordinary tracer bullets. The effective accurate range is 800 meters. The shooting mode is single shot, and the combat firing rate is 10 rounds per minute.
China adopted the unsupported structure design for KBU-88 sniper rifle, which is a popular and difficult design in modern assault rifles, but it is rarely used in the design of sniper rifles, which fully embodies the spirit of Cang Xin. Because the shell and butt of the gun are integrated, and the small grip is arranged in front of the magazine, the structure of the gun body is simplified, which is also beneficial to reduce the dynamic moment when shooting between the eyebrows, restrain the barrel from jumping and improve the shooting accuracy.
The excellent sniper rifle KBU-88 can be developed by China Institute of Light Weapons, mainly drawing on the experience of other countries in using this weapon, including our own rich practical experience. Gunfight scenes can mainly emphasize concealment, suddenness and accuracy. Under the situation of reform and opening up, gun designers have also absorbed the advantages of foreign advanced guns and widely applied new materials and new technologies. The gun stock, the upper protective cover and the lower protective stock are all made of super-tough reinforced nylon by injection molding, and the basic color is black, which is neither reflective nor good in hand feel. This kind of gun pile is equipped with biped usually assembled on large caliber guns and machine guns, which greatly improves the aiming effect. The tripod also adopts chemical composite film-forming phosphor technology, which is light in weight and strong in binding force. The barrel bore adopts chrome plating technology, which improves the service performance and service life.
Compared with the Type 85 sniper rifle equipped by China Army in the late 1980s, KBU-88 sight has made great progress, and the magnification of the sight has changed from 4 times to 8 times. In addition to the mechanical sight, it is also equipped with a white sight. Although the gun has never participated in actual combat since it was equipped, the 200 1 PLA Special Forces demonstrated its good technical performance when they participated in the 10th International Scout Competition in Estonia.
Shooting accuracy is the first life of a sniper rifle. KBU-88 sniper rifle improves the firing accuracy of the weapon by optimizing the design, carefully manufacturing the barrel and strictly controlling the assembly process of the gun and the sight. Through shooting data detection, its hit rate is better than that of Type 85 and Soviet famous gun drago Novo, and it is basically the same as that of semi-automatic sniper rifles in the United States and Germany.
Bullet power is the second life of sniper rifle. Although the caliber of KBU-88 5.8 mm sniper rifle is small, it proves that its penetration power is better than that of Type 53 7.62 mm ordinary bomb and 7.62 mm NATO bomb at a distance of 800 meters. Its average initial velocity is 924 m/s, and it can still effectively kill people after penetrating helmets and bulletproof vests within 800 m.
The concealment of sniper rifle and the rapidity of use are also important tactical indicators. KBU-88 sniper rifle is equipped with three insurance institutions to ensure safety. Because of the small caliber, low noise and flame, and the use of slotted cylindrical flame arresters, the possibility of snipers being discovered by the enemy after shooting is greatly reduced. The gun has the advantages of light weight, short barrel, good shooting speed and adaptability, which is convenient for capturing fighters and launching them quickly in areas with limited vision, such as cities with many buildings or jungles. A sniper rifle that fires 7.62 mm bullets has a strong recoil. When it hits the gun, it will jump violently and hit the shooter's shoulder. It takes some time to calm down and aim again. The recoil of KBU-88 sniper rifle is less than half that of 79/85, and it can aim and shoot quickly with one shot.
Compared with the Type 85 7.62mm sniper rifle currently in service in China, KBU-88 has the same power and improved accuracy, which overcomes the inconvenience of Type 85, and will be replaced as the main equipment for infantry sniper in the next step. As for dealing with the defects of targets or light armor 800 meters away, the Chinese army has solved them with the new 12.7 mm large-caliber sniper rifle.
The latest domestic large-caliber debut
Since the 1990s, the development trend of sniper rifles in developed countries in the world is large caliber, and many rifles with caliber of 12.7 or 14.5 mm have been introduced one after another. Its design idea mainly considers the 7.62 mm sniper.