Open an aircraft carrier to fight against Japan

When Lin Yuan heard the other party say that they belonged to Pulan Company, he couldn't help asking in surprise, "Are you really from Pulan Company?"

The staff member on the other side glanced at Lin Yuan, saw that he was very young, and thought he was Xu Jingcheng's entourage, so he ignored him, and then explained the gyroscope to Xu Jingcheng, Shen Wanqing asked aside: "Isn't it A company that makes gyroscopes? What are you so excited about?"

Lin Yuan said: "This is Pulan Company. Their products have changed the history of naval warfare. Do you know what to prepare when naval guns are used as the main combat weapon?"

Shen Wanqing said: "Of course I know. If you want the shell to hit the opponent's warship, you must master the timing and position of firing the shell. Let the shell fall on the point where the enemy warship will pass by. If you want to achieve this The purpose is to measure the distance, azimuth, and speed of the enemy warship."

Lin Yuan said: "Well, do you know how these data should be measured?"

Shen Wanqing stopped talking, and Lin Yuan said: "The first is the distance. There are two ways to measure the distance. One is to measure the distance optically. The principle of ranging calculates the distance, as well as the stereoscopic rangefinder and combined image rangefinder made by using the human visual effect, we will talk about it later.”

"The optical method uses the optical band for distance measurement, and there is also a device that uses the micro-wave band for distance measurement, which is radar. The time difference between the emission of electromagnetic waves and the arrival of reflected waves is multiplied by the speed of light and divided by two, which is the distance between the radar and the target. Distance, the knowledge of radar ranging is also very deep, and a lot of technologies are needed, and there is no such technology in this era.”

"Under the current optical ranging conditions, distance measurement and azimuth measurement are inseparable. Only when the azimuth is measured can the distance be measured. Then only the speed is left. Under the condition of radar, We can easily measure the velocity by using the relationship between the frequency of the reflected wave and the velocity of the reflector, that is, the Doppler effect."

"But there is no radar in this era, so the determination of the speed depends on human experience, relying on the waves generated by the bow hitting the water to judge the speed of the enemy warship. But after measuring the distance and speed, the problem comes. The distance you measure It’s just that you measure the distance at each moment, and the enemy’s warship can’t stand still, it must be moving at high speed.”

"When your warship is traveling parallel to the enemy's warship, the distance will not change, but in actual combat, there must be an angle between you and the enemy, so the distance will change all the time. So how do I determine where I should aim at the next moment based on the data I already know?"

Shen Wanqing asked blankly: "That's right, where should we aim?"

Lin Yuan said: "When human naval warfare was just emerging, there was no need to consider this issue, because the most primitive naval warfare was face-to-face. Look at the ancient naval warfare weapons: a sharp steel cone was installed on the bow, and the Come to pierce the enemy's ship; install a racket on the ship to slap the enemy's warship like a fly, but the most conventional tactic is to jump on the opponent's warship, and then fight hand-to-hand."

"When artillery technology developed, people began to move artillery to ships, and artillery became the main weapon in naval warfare. In the early stages of artillery development, the range was relatively short, so at that time naval warfare was all about close-to-bombing, and there was no need for it at all. Consider things that vary in distance."

"But in this era, at the end of the 19th century and the beginning of the 1000th century, the range of artillery has undergone tremendous changes, from less than [-] meters at the beginning to nearly [-] meters, so the problem of aiming is extremely prominent. In order to solve the problem of aiming, people We came up with such a solution, if we can obtain the distance change of the enemy warship within a unit time, we can know his position after a certain period of time, so that the artillery can be aimed precisely.”

At this time, Xu Jingcheng watched Lin Yuan cough deliberately, and Lin Yuan realized that he thought his voice was too loud. Lin Yuan quickly lowered his voice, and then said: "So people continued to observe the distance of the artillery for a certain period of time. Data, using mathematical methods to solve its distance change in unit time, but it is very difficult to do this, because there are a lot of observation errors, and the numbers are very large, which is not easy to calculate.”

"So something that changed the history of naval warfare came on the scene - the fire control system with a mechanical computer as the core. The mechanical computer uses mechanical methods to calculate, such as calculating the multiplication of 2 times 3. Two gears can be used to position the transmission ratio. 3. Let one of them turn twice, and the number of turns of the other is the result."

"The mechanical computer used to calculate the change in distance between warships was first invented by a man named Demeric in 1902, and later in 1903 came the Vickers clock, which could The distance change rate is integrated to calculate the current distance, but because the warship is affected by waves at sea, errors are often made when measuring the distance."

"If the distance is not measured accurately, then the rate of change of the distance cannot be accurate. So at this time, Pulan came on the stage. He was originally a lawyer, but later he became interested in the fire control system, and later established Pulan. The company used the gyroscope to stabilize the measurement system, and integrated and reformed the previous simple fire control device, thus developing the Pulan fire control system."

"After Purland developed this system, the navies of various countries began to pay attention to the fire control system. Therefore, in the Battle of Jutland in World War I and several battleship battles in World War II, the engagement distance of the main guns of both sides was 1908 meters. As mentioned above, this fire control system should have appeared in 12, but unexpectedly, it was [-] years earlier!"

Lin Yuan made a long speech, and Xu Jingcheng came over and said, "Just now they said that the function of this gyroscope is very magical. It can be used to stabilize things. It can be used to measure how much the ship has deviated from the predetermined course in the vast sea. to correct the course."

Lin Yuan asked: "Did they only talk about the application of this thing in the navigation system?"

Xu Jingcheng didn't understand Lin Yuan's question, so he couldn't help asking: "What did you say?"

Lin Yuan ignored Xu Jingcheng, came to the staff member, and asked, "What is the application of this product of your company? If it has a wide range of applications, I hope I can buy some."

The man said: "Our gyroscope is mainly used in navigation."

Lin Yuan took advantage of the situation and asked: "It is mainly used in navigation? Do you have gyroscopes used in other areas?"

The man was taken aback for a moment, and then replied: "Sorry, we can't answer your question."

Lin Yuan looked at the man's nervous look, and thought: "I see, you must have applied the gyroscope to the fire control system. If you want to keep it secret, just tell me if you don't have it? That's not the answer. Is there no silver 300 taels here?"