[97] Jeep attack at sea

It was 9 o'clock in the morning, and the fog on the sea in winter was slowly dissipating, and it was a little gray in the distance. Anyone who has ever been a naval observer knows that the visibility of the sea depends on the height at which you are standing and the sea conditions and weather at the time.

Generally speaking, according to the Naval School Code, the observer stands on a seven-meter-high observation platform, and if the boundary between water and sky in the distance can be seen "very clearly", what does it mean? That is to say, if you feel as if you can see the waves on the dividing line, and the waterline can be seen clearly, then it is called "very clear", and your observation distance is more than 50 kilometers, and there are even records on Shijie where observers have found ships of 60 kilometers or even 70 kilometers;

If you feel that the boundary between water and sky is only "clear", that is, you can only clearly distinguish between the sea and the sky, then your observation distance varies from 20 km to 50 km;

If you feel that you can barely see the boundary between water and sky, but the boundary is blurred and looks like the sea and sky are connected, then the sea state, which is called "barely visible" in the observer's report, is observed at a distance of between 10 km and 20 km;

To put it bluntly, the boundary between the sea and the sky at this moment is simply a slimy integration of the sea and the sky in the eyes of the observer, and it looks very vague, and it can only be determined that the boundary between the sea and the sky is in such a layer of color gradient, so the observation distance at this time is 4 kilometers to 10 kilometers;

The worst-case scenario, which the observer calls "completely invisible" in the report, is less than 4 kilometers away, what is the worst case and how bad can it be? That is, the downpour is accompanied by strong winds and waves, and even the black pressure of the five fingers is not visible, and even some ships are collided with the opposite ship, the observer only found the existence of the other party, it turned out that there was a boat in front of him!

At this moment, the second temporary minesweeping formation of the Qingdao base is in the third situation, that is, what the observers say, "barely able to see clearly." Under the huge canvas awning on the top of the bridge, the three observers all desperately held the grasp of the observation telescope with both hands, firmly stuck the figure-eight rubber observation port of the fixed observation telescope on their heads, and their bodies were against the circular iron fence used to fix their bodies at the observation position, and they squatted with safety belts to resist the turbulence of the ship brought by the forward assault at a high speed of 30 knots. Although the observation port of the fixed observation telescope is rubber, the faces of the three observation officers have been stuck, and even the red marks have come out.

Captain Han Tingfeng and Deputy Captain You Guanghua also squatted on horseback steps, holding the railing with one hand, and pressing the telescope on their eyes with the other, grinning desperately at the boundary between the sea and the sky in the distance in the turbulence of the submarine hunting and the turbulence of the sea breeze. What are they looking for, where is the target? Whether the target is a fishing boat or a gunboat.

"Sea Jeep" 037 hunting submarine at a speed of 30 knots on the sea surface to the unknown ship rushing, the speed of a section at sea is one nautical mile per hour, one nautical mile is 1852 meters, 30 knots full speed impact of the "sea jeep" means that the ship is gliding on the surface of the water at a speed of more than 55 kilometers per hour, although the structure and linear design of 037 is for high speed, the hull structure curve is smooth, and it has been specially designed for waveworthiness and resistance to pitch and roll, It is convenient to carry out high-speed assault and rescue at sea, but the speed of 55 kilometers per hour is already a high speed even if you drive on the road, not to mention the interference of wind and waves on the sea without roads.

So at this moment, the ship is jolting violently, and the observer's observation difficulty has also increased, so why should the captain Han Tingfeng choose a high-speed assault? Han Tingfeng's reasoning was: "Once one of the escort hunting submarines leaves the escort formation, it means that the protection of the minesweeper is reduced by half, so it must be quickly returned quickly." And in the event of an enemy situation, they can continue to use high speed to get rid of the enemy's shelling and minimize the opponent's hit rate as stated in the information issued by the Navy Command. ”

His idea is correct, the 037 submarine hunting was born for high-speed assault warfare, and it was born under the guiding concept of "fighting bayonets at sea", "fighting bayonets on land" and "fighting bayonets in the air". In the face of the cannon of the giant ship, it is also sinking to be hit by a heavy cannon on 10,000 meters, and it is also sinking at 1,000 meters......

Besides, 037 has been modified with a radar in the eighties, equipped with a "round ball" gunner, the computer processes the course and speed of its own ship at high speed, as well as the course and speed of the target ship, and immediately gives 5 seconds, 10 seconds, 20 seconds after the shelling parameters, the four gunners on the deck only need to follow the data in the time interval of the parameters, such as aiming the cannon within 5 seconds and firing the cannon on time at 5 seconds, and after 5 seconds, the 10-second parameters are used to adjust, anyway, the gunner is completely freed from the complex calculation work, The only thing to test was the speed and accuracy of the four gunners on deck and the speed with which the four loaders on deck loaded their shells.

For naval artillery, the shelling distance and the hit rate are inversely proportional, the smaller the distance, the higher the hit, this relationship is like a cotangent function image on the positive half axis, the closer to the zero axis, the more obvious the hit rate rises, if the 8000 meter hit rate is 10 percent, then 6000 meters may only be 13 percent, to 4000 meters is 21%, 2000 meters is 40%, 1000 meters is 70%, it is so higher and higher, and then the closer point is equal to white-knuckle combat, the cannon has no false fire, Of course, these data are shelling in a stationary state, and generally speaking, when shelling a target at the same high speed in high-speed driving, the accuracy of shelling is basically only half that of hitting a fixed target in a stationary state.

As long as you get the cotangent function image of the opponent's artillery, and overlap with the cotangent function image of your own artillery, the intersection point of the hit rate curve of your own side and the opponent's hit rate curve is the turning point of the shelling efficiency, as long as our warships always keep the hit rate higher than the opponent's distance, you can get the greatest benefit.

Of course, if the guns of World War II warships encounter a fire control system like the 037, which is ahead of the times, then there is no need to compare, the two images have no intersection at all, and the 037's hit rate curve image is always pressed on the opponent's image.