Although the Japanese destroyed the barricade barbed wire fence in front of the Zhonghua Gate, they were unable to reach the foot of the city wall without the support of heavy firepower.

From December 10th to 11th, the devils could only test the attack on a small scale, even if there were aircraft and artillery, but the bombardment of the city wall was only a long-range bombardment, and the problem was not very big.

In addition to dropping bombs, the Japanese planes also threw down a lot of letters of persuasion, and on the morning of the 10th, the Japanese army also raised a huge white balloon with big red Chinese characters written on it: "Give up useless resistance, Kaesong surrender!" ”

The Chinese in the entire city of Nanjing watched the Japanese army's performance, no one paid attention to it, and even more, they picked up the persuasion book to wrap tobacco shreds, made cigarettes to smoke, and some people took them to wipe their butts, but they were too hard and not as comfortable as straw paper.

……

In the past two days, the machine gunners have been cool, the barrels have been changed several times, and they are still so happy to strafe, but the infantry are also very grateful to them, it is the hard work of the machine gunners that will make the infantry very easy.

There are many veterans, like dog-legged Yang Chengzu Wu Dingli, and a few of them, all lie on the horse road on the city tower or sleep in the cave of the hidden soldiers, even if the whole Nanjing city is very fierce and noisy, it does not affect them to sleep.

Except for the planes, they had to quickly hide in the caves, and the rest of the time they could fall asleep listening to the noise of water machine guns.

On the contrary, if there is no noise from the water machine guns, they feel that they can't sleep, not because they are used to it, but because they are on the position, as long as the sound of their heavy machine guns sounds, it proves that their people are still there, and they are still controlling the firepower of the position, and they feel very safe.

If the heavy machine gun is stopped for a long time, even if you sleep deeply, you will suddenly wake up, and no one can explain what is going on, which may be what modern people call the sixth sense.

However, such a good day only lasted for two days, and on December 12, with the loss of Yuhuatai, the barrier of Zhonghua Gate, the good days of Zhonghua Gate came to an end.

The Japanese army dragged the cannon up to Yuhuatai and fired at the Zhonghua Gate, the accuracy of the shells became higher and higher, and few of the shells fell into the devil's own position, most of the shells smashed on the city walls and towers, and some would fly into the city.

The powerful artillery fire strongly suppressed the firepower of the Zhonghua Gate, and the positions on the entire front line of the Zhonghua Gate, from the Shuixi Gate on the right to the Zhonghua Gate in the middle to the Guanghua Gate on the left, were all covered by the Japanese artillery.

The Japanese attack began, and the planes kept hovering over the city walls, and as soon as they found that there were defenders on the castle towers, they swooped down and strafed.

In such a day, I couldn't stand the hardship, and I dragged two Suluotong machine guns from the Ministry of Military Affairs to temporarily curb the arrogance of the Japanese planes.

Although the caliber of the Surotong ST-5 machine gun is only 20 mm, it can also be used as an anti-aircraft gun, under normal conditions, the caliber of 20mm is a dividing line, more than 20 is called a gun, and less than 20 is generally called a gun.

Therefore, the Surotong ST-5 can be regarded as the smallest gun, and the mortars are called small cannons, with calibers of 60, 80 and above, which shows that Surotong's guns are pitiful.

Although the caliber is small, it can still be used as an anti-aircraft gun or anti-aircraft machine gun, because the barrel is long, the longer the barrel, the greater the chamber pressure, and the longer the range.

The maximum firing range of the Surotong ST-5 machine gun is as high as 5,600 meters, the maximum firing height is 3,400 meters, and the effective firing height is also about 2 kilometers.

Large-caliber anti-aircraft machine guns, such as the 12.7-13.2, not only did the range not reach as far as Surothong, but the hit effect was also much worse.

And Surothong is different, it is not a bullet, but an artillery shell, the bullet will not explode when it hits the plane, the shell is different, although the caliber is only 20mm, but after all, it is also a shell, once it hits the plane, it will also blow up a big hole, and the plane will be injured if it does not fall.

At that time, Japanese planes bullied China for not having air supremacy, and flew very low, often flying close to the treetop rooftops, strafing at low altitudes, although the infantry of the Chinese army would hit a plane with rifle and machine guns, it was also a very low probability.

At present, the Japanese planes are still in the air, closing the distance, hovering over the Zhonghua Gate, and from time to time swooping down to strafe the Chinese soldiers on the city tower.

A plane has been diving several times, getting lower and lower, trying to blow up a heavy machine gun bunker in a dead angle, but it has not found a good line and angle, and the bomb has not hit several times, which stunned the devil plane.

This time, it must be done, the devil's plane adjusted the best line and began to dive, just as it was about to drop the bomb, the devil's pilot glanced at the dead corner under the city tower to see if there was anything new over there.

Yes, there was a new discovery, and this new discovery almost scared him out, it was Su Luotong, who came from hell and had already begun to fire cannons, and a brilliant spark bloomed on the mouth of the cannon barrel.

In such a high-speed flight, it was impossible for the devil's pilot to dodge, but under the conditioned reflex, he still pulled the plane up desperately.

Even a little bit of heightening it didn't help, and the plane began to burst open in a shudder, becoming a fireball in the air, and the pilot, at the last moment of his life, saw Surothong from hell beckoning to him.

I'll go, good cow B, such a cow machine gun, put the bamboo pole and these cannon lovers, they were dumbfounded and drooling.

Sangou simply asked the bamboo pole to take a few apprentices and go to the site to learn, in case there will be a chance to use it in the future, anyway, they are not needed in the city tower now.

Once one of the devil's planes is shot down, the others will swarm in, and no matter how many defenders there are on the castle tower, the top priority now is to get rid of their nemesis, otherwise they will become the next plane.

The key is that the position of this Suluo cannon is designed to be very thief, placed in the dead corner of the city tower and the urn city, and a hidden soldier hole is opened in the back.

Su Luotong is not heavy, only about 200 kilograms, and it is also used on wheels, which can be dragged into the Tibetan soldier cave at any time, and when the Japanese planes are angry and devastated to avenge their comrades, it is when they are most dangerous.

Su Luotong, who was hiding in a blind corner, was waiting for the devil's plane to arrive, although he had a general vision in the blind spot and could not turn a 360-degree corner, but it was enough to deal with the plane that dived down head-on.

The Devil's Pilots are also ferocious and abnormal, one after another swooping down, trying to defeat Su Luotong with speed and agility, and Su Luotong's gunners use the rhythm of 3 tracer explosive bombs and 1 tracer bomb to methodically fire at the Devil plane.

Tracer shells are used to correct the trajectory, in a ratio of 3 to 1, so that the gunner can constantly correct the trajectory; Both sides fought for their lives on long-range ballistics.

It is impossible to strafe the dive of the devil plane with machine guns, unless they themselves crash into the dead corner of the city wall, and the machine guns of the aircraft are at most relatively large-caliber bullets, which cannot explode, and are not very effective for hitting ground targets.

Therefore, the devil's plane is diving, mainly dropping bombs, these dozens or hundreds of pounds of bombs, as long as one hits, the Su Luotong hiding in the dead corner, even if he dodges well, will be blown up.