How to visually measure the distance of the target on the battlefield

Measure the distance Stretch your arm forward and raise your thumb, close your left eye, your right eye, thumb, and the target form a straight line, close your right eye, open your left eye, and remember the point on the right side of the target with your left eye and thumb extending the straight line, visually measure the distance between that point and the target, and multiply by 10, which is the approximate distance you have to the target.

Theoretically, with the arm straight, the thumb up, and similar calculations based on the distance from the eye to the thumb (about the length of the arm), the length of the thumb, and the height of the object being measured. But in fact, when using this skill, it is basically based on empirical ranging, and it takes a long time of practice to become proficient. Moreover, it should be corrected that finger ranging is mostly used for rough measurement of marching and artillery positioning, and it is compulsory for every soldier.

Snipers rarely use finger ranging, because finger ranging has to stretch the arm straight, which is easy to expose themselves, and snipers mostly use direct visual inspection. Finger ranging can generally be estimated 2-4 kilometers (applicable when there are obvious features, such as houses, trees, etc.), experienced soldiers have an error of no more than 200 meters, and visual measurement is generally used to estimate the distance within one kilometer, with an error of less than 50 meters.

Finger ranging and visual inspection require long-term practice, as well as an understanding of the size of general ground objects, their visual sizes at different distances, and the ability to skillfully use reference objects with known distances for comparison. If you can practice hard, I believe you will succeed.

Measure with the quasi-tool on the gun, if you try to use your bare hands, you can stretch out your thumb and straighten your hand, now determine a little farther than the previous eye, and then change one eye to determine another point, of course, the straight line where these two points are located is perpendicular to the front of the face, and then estimate the distance between the two points (select a reference on the branch line, of course, you are familiar with the length of a certain model of car is about 3 meters, see how many car lengths are at the distance between those two points), and then use this distance to compare the distance between the pupils of the two eyes, Multiply this ratio by the length of your arm and you're the distance from your visual point.

The day before yesterday, the United Nations banned this measurement method, because the error caused by this measurement method killed many people on the battlefield, and the missile range was not accurate.

Don't make it too complicated, it's actually just a comparison with what you already know.

This is one of the scouts.

I just retired. In our troops is a kind of command.

1. Visual distance:

Straighten your arm forward and raise your thumb, close your left eye, your right eye, thumb, and target form a straight line, close your right eye, open your left eye, remember that your left eye and thumb extend the point to the right of the straight target, visually measure the distance between that point and the target, and multiply by 10, which is the approximate distance you are to the target.

2. Visual height:

Thumbs up. The arm is flat, the gaze is about 120 dense positions with the horizontal line through the fingertips, and the target height is estimated by looking at the height of the target, and the angle between the two realized sight lines passing through the top and bottom of the target is how many dense positions, and the dense position is multiplied by the target height (based on experience) is the target distance.

Common sense for visual distances

Look at the clarity of distant objects to visually measure the distance, and the range of vision of the human eye is different depending on the distance and proximity. Within a line of sight of 300 meters, people can see each other's objects clearly. Within a line of sight of 500 meters, people can basically see distant objects clearly.

At a range of 1,000 meters, one can roughly see the outline of an object in the distance. Beyond 1,000 meters, people can see the objects in front of them more blurrily.

Listen to the sound of distant objects to visually measure the distance, and the sound heard by people is different depending on the distance from the object in front of them. Within 10 meters, you can clearly hear the sound of normal human speech. Within 200 meters, the sound of cars can be heard clearly.

Within 2,000 meters, the sound of the horn can be heard clearly. Within 2,500 meters, the sound of gunfire can be heard clearly.

The method of measuring the distance with the arm mentioned by the landlord is the eye-beating method in the simple field ranging method in the army.

The eye-skipping method is based on the distance between the two pupils that are about one-tenth of the length of one's own arm, and multiplies the width of the measured object by 10 to obtain the distance from the standing point to the target. The specific measurement method is: stretch the arm forward, raise the thumb, close the left eye, so that the line of sight of the right eye is aligned with the left side of the target (datum point) along the thumb side, keep the head and hand still, then close the right eye, look at the thumb with the left eye, there is a point on the extension line of the line of sight and the target in the same straight line, and remember the point of sight on the ground, and then visually measure the width of the left side of the target (datum point) to the point, multiply the width by 10, that is, the distance from the standing point to the target.

The jumping eye method is simple in principle and easy to operate, but due to uncertain factors such as individual arm length and distance between eyes, the error of the ranging results is very large, and can only be used for rough estimates.

It would be nice to practice more with experience.

Artillery used the jumping eye method to visually measure distances.

The jumping eye method calculates the approximate distance of the measured object from us by estimating the width of the ground seen by the jumping eye, combined with the similarity triangle principle and the straight-line propagation principle of light.

In this method, the distance from the standing point to the target is obtained by multiplying the width of the measured object by 10 based on the distance between the two pupils about one-tenth of the length of one's own arm. To use the jumping eye method, you must be familiar with the dimensions of common objects, such as the length of the car, the height of the person, the height of the building, etc., otherwise you cannot use the jumping eye method to estimate the distance.

Trigonometric functions, eyes, thumbs, and targets form a triangle.

It is true that you can use your thumb without tools, but now that it is information-based warfare, there are great requirements for the accuracy of artillery bombardment, and many of them are beyond the visual range, I think it is not possible to rely on instruments, I really want to rely on finger distance measurement, I think you should find a way to practice, this is very dependent on personal experience, but it is useless to want to make miraculous achievements in modern warfare.

Straighten your right arm and place your thumb directly in front of your right eye. Close your left eye first, record the first point you see with your right eye along your thumb (measurement target), keep your right thumb still, then close your right eye, record the second point with your left eye along your thumb, and then empirically estimate the approximate visual distance between the two points and multiply it by 10 times, which is the target distance.

For example, a soldier is normally 75 centimeters per step, an ordinary adult is about 50 centimeters wide, the height of a building is less than three meters, the width of three windows is about two meters, and the distance between two telephone poles is generally 50 meters. The approximate distance of the target area between the two eyes is estimated using the available features within the visual ranging range.

The interpupillary distance of a human is about 6 cm, and the length of one arm is about 60 cm, and the ratio of the two is 10 times. Similar triangle principle. Therefore, 10 times the distance between two things is the target distance.

What is the principle of the thumb that measures the distance of shelling the target.

Special forces and artillery reconnaissance are how to use the thumb to measure the distance to achieve accurate strikes, which can be learned in 2 minutes, which is very practical.

Jumping eye method ranging, facing the target, stretch out the right thumb between the two eyes, close the left eye, use the right eye to aim at the target through one side of the thumb, and then use the left eye to observe through the same side, remember the object that the left eye is looking at, estimate the distance between the object and the target, and then multiply by ten times, which is the distance of the target.

The observer faces the target, stretches out the thumb of the right hand between the eyes, closes the left eye, points the right eye at the target through the side of the thumb, and then uses the left eye to look at the same side of the thumb, remembering the object that the left eye is looking at, estimating the distance between the object and the target, and then multiplying by 10 times, which is the target distance.

I am a professional in artillery reconnaissance, which is called the visual distance method, which is based on the principle of triangle similarity. the length of the arm, the height of the pencil held in the thumb or hand, the angle of sight between the eye and the top of the pencil held in the thumb or hand; The apogee is a tall, fixed hilltop or an object with elevation on a military topographic map.

It is the principle of trigonometric function, derived, fixed standing point and target point. Practical experience is required.

The ground-to-air scud is right, this is a method of using the law of triangular grooves and strands to calculate the target distance, because the early artillery did not have such modern aiming and ranging equipment as now, and often had to rely on the gunner's visual inspection to calibrate the firing distance.

This is the long-term accumulated experience of artillerymen, and there is no formula for calculation. It's like a good sharpshooter, you have to feed it with bullets.

Oh, I'm sorry I'm an armed police officer and I'm not familiar with the artillery profession. I have a chance to ask you about my brother, he is an artilleryman.

Through the auxiliary ranging scale in the scope, you can make accurate judgments with reference to objects near the target, for example, vehicles, doors and windows near the target can be used as a reference to calculate the distance of the target.

You may not know much about this knowledge, because there are a few friends who are veterans, and based on their explanations and the information they have collected, I will share with you how snipers can visually measure the distance to the target during combat. First climb forward in your sniper position and straighten your arm tree thumb, close your left eye, your right eye, thumb, and target form a straight line, close your right eye, open your left eye, at this time, remember that your left eye and thumb extend the point on the right side of the target in a straight line, visually measure the distance between that point and the target, and multiply by 10, which is the approximate distance you have to the target. [**Iron and Blood Community] thumbs up.

The arm is flattened, the gaze is about 120 dense positions with the horizontal line through the fingertips, and the height of the target is estimated to estimate the angle between the top and bottom of the target, and the dense position is multiplied by the target height (empirically) is the target distance, for example, the target height is about 1 meter, and the line of sight is about 100 dense positions through the angle between the top of the head and the soles of the feet, and the distance is 150 meters. Since the length of some object is usually a known quantity, such as a car, a house, etc., the distance can be calculated based on how much angle it occupies in visual inspection (a dense position is used in military surveys). The number of points in the area covered by the thumb with the arm straight is fixed, and this angle value can be obtained by referring to the target being measured.

Warp ]"Thumb distance measurement"It is measured according to the right angle trigonometric function, assuming that there is a target at a distance of n meters from us, measure the distance from us to the target: 1. Raise our right arm horizontally, make a fist with the right hand and stand up with the thumb 2, use the right eye (left eye closed) to overlap the left side of the thumb with the target in a straight line; 3. The right arm and thumb do not move, close the right eye, and then use the left eye to observe the left side of the thumb, and you will find that this sideline is a distance away from the right side of the target; 4. Estimate this distance (this can also be measured), and the distance is 10, and the number is the approximate distance between us and the target.

It depends on your marksmanship and eyesight.