How snipers measure wind speed
In Hong Kong's detective film, we often see some snipers aiming at being attacked, then launching and hitting. At this point, do you consider how the sniper does it, and if the bullet happens to encounter the influence of the crosswind during the flight, will the bullet change the original trajectory? I do not know if you remember the killer is not too cold Jean Renault also plays a sniper. So, in the real shooting process, the sniper is how to determine the wind speed, in order to achieve the purpose of precise targeting.
In some battlefields, general snipers will also be equipped with an observer. The main task of this observer is to provide sniper appropriate data. In general, observe the hand on the battlefield to some fixed reference with a laser rangefinder to measure the distance (in the past through the telescope, and then use the formula to measure the distance), record the small book, in order to calculate the advance. However, if wind speeds are taken into consideration during operations, some indicators can be used as measurement tools such as flags, smoke, trees, grass, raindrops, and their own feelings. The most common method is to use flags. The sniper estimates the angle formed by the wind-blown flag and the flagpole, and divides the angle by a constant 4 and then 1.6. The answer is the approximate wind speed, such as the bottom edge of the flag and The flagpole is at a 60-degree angle and the wind speed is about 60/4x1.6=24 km/h. In addition, if the sniper does not have a flag at hand, you can also use paper, grass, cotton or other lighter objects, and then use your fingers to point to the landing point, using the angle formed by the arm and the body divided by 4 times 1.6. It is also more accurate. While some elites have some saliva on their fingers, they can feel the wind speed. This is closely related to the sniper's own technology and business experience. However, in agriculture, we generally use professional wind anemometers to measure wind speed and direction.
However, in real events, you rarely meet the need to determine the wind speed before you design. Because general snipers generally use special guns with a large pipe diameter ratio, these sniper rifles may not have a long range, but the linear part of their trajectory curve is relatively long and the ballistic curve attenuation is small. And when implementing sniper missions, there are not so many hours of use of instruments such as wind direction wind speed monitors. Therefore, true snipers use their own experience and strength to complete sniper missions instead of using equipment and other equipment. Reach your own sniper more accurately.
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