Sanbao held a mortar shell in both hands and placed it on the muzzle of the gun. He reminded: "I'm going to fire." Li Yong and Shan Zi beside him immediately squatted on the ground and covered their ears. After hearing the news, they followed to watch the excitement.
People are watching from behind.
As soon as Sanbao's hand was loosened, with a hissing sound as it slid down, the shell collided with the firing pin at the bottom. With a muffled "boom" sound, the mortar shell roared out. Sanbao saw a black shadow disappearing quickly in front of his eyes.
Sky,
As if a long time had passed, a cloud of black smoke suddenly rose a few hundred meters away. There was a sparkling fire in the smoke, and a violent explosion followed closely.
People immediately burst into cheers of joy, and Sanbao was also very happy. It seemed that this cannon was just that, it was very simple.
"Go and measure the distance." Sanbao said immediately.
Li Yong and Shan Zi grabbed a rope and ran forward one after another. Soon, they came back. "Report to the captain, the distance is 322 meters." Li Yong reported to Sanbao.
"Okay, as long as we fire at this distance from the Jaap Watchtower, we will definitely send it to the sky." Sanbao said confidently.
"It's not that simple!" Ruo Bing's voice came from behind.
"What should I say?" Sanbao turned around unhappily.
"This mortar shell flies in a parabola. Your shot will hit the bottom of the watchtower and will not land on the top of the watchtower." Ruobing reminded.
Sanbao patted his head and replied: "Yes," but he continued: "Then we will move the cannon in..." But he immediately felt a problem. How far does it need to go? We must know the height of the Japanese watchtower, and of course
It is necessary to accurately grasp the distance from the Japs Watchtower. This is not common. The Japs will not honestly let themselves measure it. Even if this is done, at what distance should the gun be fired?
"Move in? Haha, everyone just adjusts the cannon. I haven't heard of anyone moving the cannon around to fire." Ruobing was amused by Sanbao's idea.
"Humph, you think I don't know how!" Sanbao replied unconvinced.
Sanbao then carefully turned the height and angle of the mortar and the steering wheel. Of course, he carefully recorded the number of turns. At this time, Sanbao felt that it was easier to aim straight. What he wanted to understand was the effect of adjusting the height angle on the shooting distance.
Influence.
As the second shell roared out, the shell exploded more than ten meters away from the impact point of the first shell. Sambo also thought that he could use it. As long as he had the guidance of the first shell, he could adjust the muzzle himself.
From the high and low directions, the next thing you can see is the Guizi Watchtower.
At this time, Sanbao didn't really understand mortars. What he knew was just the basics of simple firing. More importantly, he didn't know that the firing accuracy of this mortar was not high. This was the mortar itself.
problem.
The mortar shell slides down in the barrel and touches the firing pin at the bottom, thereby activating the primer to ignite the propellant and the powder bag. Since the shell can slide down, the barrel is naturally thicker, and there is naturally no rifling in the barrel, which itself affects
In order to improve the shooting accuracy, all mortar shells have tail fins for stabilization.
In addition, mortar shooting is affected by various factors such as propellant, wind direction and speed, terrain, etc. It is difficult to accurately hit the target. This was only realized when Sanbao shelled the Japanese watchtower that night.