104 Chapter 104 Teacher Y-head

Wang Xiaoyu was completely speechless, it seems that Taobao's materials will arrive in at least a week, and when they are published and the paper battery is printed, won't it take 10 days? Mr. Hong only gave him 15 days, only 5 days to work hard, where is there enough to test and train? But there was no way, so he gave Huang Jiahao the list of materials and the address of the outlet, and said: "These materials and films, all by the internal express, you send 2 people to the capital of country Z to wait, do you set off, and when the things arrive, two people will take turns to drive and rush back overnight, so that you can save two days." ”

"Okay." After Huang Jiahao finished speaking, he turned around and went to arrange.

Two days later, when Wang Xiaoyu and Yangniu were designing the paper battery process in the cave, Xiao Shancha followed Xiaohong and Xiaolan, two female soldiers, to the small col where the test flight was carried out. Huang Jiahao knew the importance of the batch of materials purchased by Wang Xiaoyu, and personally drove people to the capital airport of country Z, and the drone team was led by Xiaohong and Xiaolan for training.

Xiaohong stood under the tree, looking at the twenty handsome guys standing in a row in front of her, a little excited and a little nervous. Excitedly, it was finally his turn to lead the troops, and it was still a brand new drone unit. Nervously, without Huang Jiahao on his side, will these young men disobey themselves?

On the grassy slope 500 meters below, there is a two-meter square circle painted in white lime, but on the slope 500 meters away, there is only a small white dot. Xiaohong pointed to the white dot and said, "In the previous stage, we carried out basic operation training, and now, we have entered the second stage, bomb throwing training. You have to throw the small bag of sand under the drone into the white circle on the grassy slope. Remember, throw at least 100 meters above the white circle, and commit a foul if you don't do it 100 meters. ”

As soon as her words fell, a soldier next to her said: "Coach, a circle more than 500 meters away looks like a small dot, you can't see it clearly, how can you hit it?" ”

Another soldier said: "Why do you drop sandbags from a height of 100 meters? Isn't it more accurate to lower a little? The advantage of multicopter drones is vertical take-off and landing, hovering in the air, why should it be so high? ”

Another soldier said: "If you can't shoot, you won't miss, practice slowly, and you won't lose a piece of meat!" ”

Xiaohong's head grew big all of a sudden, why didn't they have so many problems when Huang Jiahao was there, Huang Jiahao had all the problems as soon as he left, the soldiers were gossiping and asking questions, which question was better for her to answer? Just when she hesitated, she suddenly heard a childish child's voice beside her: "Quiet! Do you understand the rules? Didn't the teacher teach you to raise your hand when you asked? ”

Everyone looked over, but saw a girl with pigtails standing behind them, because of her short stature, she had just been blocked by the soldiers and no one paid attention to her. At this time, she turned out from behind, came to the front of the group, pointed to a soldier and said, "You, 500 meters is too far to see clearly, right?" Who told you to see with the naked eye? Aren't you going to lean forward and aim with your camera? ”

Everyone recognized her as Commander Hong's niece Xiao Shancha, who was a pearl in the army. At this moment, seeing her old-fashioned coming out to teach a soldier who was a cut above her boss, her appearance was a little funny, and a soldier desperately held back laughter, and his body kept shaking. Unexpectedly, Xiao Camellia came to his side, lifted his little foot and touched the recess of his calf, he stumbled, and his knees involuntarily knelt down to the ground. He stood up in embarrassment, staring at Xiao Camellia angrily, wanting to attack but not daring.

"Look at what, look!" Xiao Camellia, who stood in front of him, held his head high, pointed to his nose and said, "You think the enemy is dead? Is it blind? Do you still have an opinion on asking you to throw a bomb at 100 meters? Do you want to fly over the enemy's head and be stabbed off by them with a bamboo pole?" The soldier was disgraced by her and did not dare to say anything. When the others saw that this little girl was amazing, they were silent one by one, and looked into the distance with their heads held high, trying to avoid the eyes of this little girl, so as not to be taught a lesson by her little girl, and they were too embarrassed.

But the little girl still didn't give up, came to the third soldier, looked him up and down, and said with a sneer: "If you don't hit, you won't lose a piece of meat, right?" Then I'll let you have one less meal, and this morning, if anyone can't throw themselves into the circle, don't even think about eating lunch! I'm guarding the door of the canteen with the gray wolf, if you dare to come, I will dare to let the dog bite you, a group of recruits! ”

The scene calmed down all of a sudden, and he quietly listened to the lecture of this Y-head teacher. Because everyone knows, this little girl does what she says, and you are embarrassed to turn your face with her. If she forces you to not even eat, you will be a living laughing stock.

Xiaohong was very grateful to Xiao Camellia for helping her save the field, and she calmed down at this time. The soldiers shouted: "Lizheng" only then did they wake up from their embarrassment and quickly put their ranks in order.

Xiaohong said: "In order to make everyone better engaged in training, I will first reveal a little training plan to you, these days, we are training to use the camera to aim, low-altitude bomb drop, but this is still flying within the visual range." In a few days, we will fly to the other side of the mountain, carry out over-the-horizon flight, fly dozens of miles away completely by relying on instruments and images, and learn to accurately drop bombs with the help of cameras and infrared images, this is the closest training to actual combat, generally speaking, no more than three months of training is not enough, but we only have half a month, so I hope that everyone will have a correct attitude, train hard, and play the prestige of our army on the battlefield! ”

"Yes!" The twenty male soldiers replied in unison, and saluted Xiaohong in a uniform manner, so far, the drone team can be regarded as unified. In the training that followed, he flew more than 12 hours a day, and no one complained that he was tired.

Unexpectedly, Xiao Shancha has also been accompanying the soldiers in training. She used two DJI somersault cloud planes sent by Yangniu, one of which was converted into an air signal repeater by Yangniu, which hovered over the top of the mountain to provide signal relay for the UAV detachment to conduct over-the-horizon training. The other was changed into a miniature bomber by Wang Xiaoyu, Xiao Shancha drove this miniature bomber, and the soldiers were more accurate than who threw the bomb all day long, from the line of sight, to the over-the-horizon bomb outside the mountain, at the beginning the little girl repeatedly had the upper hand, three days later, Wang Xiaoyu upgraded the little girl's aircraft propeller and battery, and since then it has not tasted defeat, and the soldiers have admired the little girl's five-body throw.

Does Koyama have a special talent for bomb aiming? That's not true, the reason is that when Xiaohong taught the soldiers to calculate the bomb distance, they used the free-fall motion calculation formula to calculate the falling time at a specific height, and then used the trigonometric function to calculate the straight-line distance from the drone to the target. This straight-line distance was calculated, and with the help of a laser rangefinder, it was possible to accurately hit the target. However, Xiao Camellia, who has not even graduated from elementary school, where does he know how to fall freely and trigonometry? She had to ask Wang Xiaoyu for advice, Wang Xiaoyu took a look, these calculation formulas, both squared, and open roots, as well as the use of trigonometric functions and the law of gravitation, where can a primary school student master?

When I was worrying about how to explain to Xiao Shancha, I found that she was holding a "Logarithmic Table" in her hand, and I had an idea and thought of a countermeasure, which was to calculate the straight-line distance when throwing bombs at a height of 100 meters, 150 meters, and 300 meters, and asked Xiao Shancha to memorize it by rote. There is also a premise in particular, that is, it is effective when flying at a constant speed of 60 kilometers per hour in a straight line at an altitude.

In this way, Xiao Shan Cha quickly wrote down these three sets of numbers, and at a height of 100 meters, the bomb range was 123 meters. At an altitude of 150 meters, the bomb was dropped at a distance of 173 meters. At an altitude of 300 meters, the bomb range is 326 meters. This is the highest bomb throwing height that Wang Xiaoyu taught Xiao Shancha. The wind direction and speed will be compensated by the training experience, but fortunately, it is the bomb that is dropped, and the impact of the deviation of 2 meters or 3 meters is not great, so it is not difficult to learn. If a bomb is dropped at an altitude of more than 300 meters, because there is no precision-guided bomb, and under the influence of the wind speed and direction in the air, it will not be missed, then it will only depend on God's will.

Xiao Shancha memorized these three sets of numbers by rote, and each time the bomb was dropped, she didn't have to calculate the distance at all, it was always 123 meters, and she didn't have to wait for it, just aim with one heart, so repeated practice, it was not surprising that the throwing was more accurate than other soldiers who needed to calculate numbers on the fly.

After another 5 days, Huang Jiahao rushed back with the materials. After intense processing, Wang Xiaoyu's copycat paper battery was finally made, and due to the relationship between technology and raw materials, the storage capacity of the original paper battery was less than half. But it is also five times more than ordinary lithium batteries, which is basically enough. At the critical time, its weight is less than half of the lithium battery pack, only less than one kilogram, compared with the original battery pack of four kilograms, so that the drone has three kilograms more load out of thin air. At this time, Wang Xiaoyu and Yangniu's modification of the drone has achieved initial success.