Ballistic test
Trajectory coefficient is a mathematical model used to measure the ability of warhead to overcome air resistance and maintain flight speed. Its mode is: first select a "standard bullet", then shoot it for thousands of times, and study and record its response to air resistance and the whole ballistic characteristics in detail.
Chinese name? Ballistic test
Mbth？ ballistic test
Ballistic coefficient 1.0
basic content
According to these characteristics, the "resistance table" is further developed, and then the trajectories of warheads with different shapes and weights under different air conditions can be estimated approximately. The ballistic coefficient of "standard warhead" is 1.0. If there is another warhead with a ballistic coefficient of 0.5, it means that its ability to maintain speed is only half of that of a "standard warhead". There are two main factors that determine the ballistic coefficient: section density and bullet shape. Generally speaking, the higher the cross-sectional density, the sharper the warhead shape and the higher the ballistic coefficient.
The development of ballistic coefficient can be traced back to 188 1 year. The head of blunt flat-bottomed projectile was tested in detail by Krupp Company of Germany. Colonel majewski of the Russian army developed a set of mathematical models for predicting warheads with Krupp's data. American Army Colonel James Ingalls then published a data sheet on ballistics based on the information in the first two articles. The definition of ballistic coefficient was invented by British research institute. Modern ballistic data tables have been modified a lot, and new data tables have appeared. At present, the most commonly used G 1 mode is basically based on the original mode, and the characteristics of most warheads on the market are very close within 500 meters, so it has been used.