When He Yingqin and the members of the delegation began to visit Yan'an. He Zhengdao, who has been back in Yulin for a few days, is also busy with his feet not touching the ground, and he has to go to the arsenal from time to time to deal with those expert technicians.

In order to enhance the combat effectiveness of the air defense units as soon as possible, He Zhengdao also rarely went into battle in person to instruct officers and men in the use of these Japanese-style air defense weapons. Let the air defense officers and men drawn from various units familiarize themselves with the new equipment captured as soon as possible.

In the eyes of many officers and men of the independent column, their young commander seemed to have no weapons that he would not use. This familiarity with weapons also made He Zhengdao admired by many officers and soldiers.

After all, for the officers and men of the Eighth Route who have many new weapons, if they have to rely on them to explore on their own, it will naturally take longer to make the weapons form combat effectiveness. But with someone who can use the operation to teach, the speed is undoubtedly faster.

Although the amount of ammunition seized is not too large, He Zhengdao knows that no matter how good a weapon is, if it is not fired with live ammunition and the officers and men only operate it, it will still affect the actual combat effect to some extent. For this purpose, live-fire training was also organized.

For the first time, the live-ammunition firing of the Type 88 75mm anti-aircraft gun was carried out, and the artillery brigade commander Zhu Jiejie also came to learn from him. According to He Zhengdao's order, the two newly formed air defense battalions will also be temporarily handed over to the management of the artillery brigade.

Although these two air defense battalions will be arranged to carry out air defense near the arsenal in the later stage. But anti-aircraft artillery is also artillery, and it makes sense in He Zhengdao's opinion that these two battalions will be temporarily handed over to the management of the artillery brigade.

Looking at the anti-aircraft artillery battalion preparing to shoot live ammunition, Zhu Definition also said expectantly: "Commander, can this kind of anti-aircraft artillery really hit an aircraft at an altitude of 10,000 meters?" At this altitude, the little devil's plane can be hit, right? ”

In the face of Zhu's inquiry, He Zhengdao shook his head and said: "This anti-aircraft gun has been equipped by the Japanese army for more than ten years, and its performance has fallen behind. In addition to the firing range, the rate of fire of anti-aircraft guns is also a very important key.

This kind of anti-aircraft artillery, except for the fact that the firing range is considerable, the rate of fire is not high. In this way, in the face of some aircraft with relatively fast flying speed, it is impossible to achieve accurate aiming at all. Once the plane lowers its altitude, it can only stare dryly.

Compared with this anti-aircraft gun, in addition to the range is not bad, I am more optimistic about the Type 98 20mm anti-aircraft gun. Although the firing range was only half of that of this 75 anti-aircraft gun, the rate of fire per minute was impressive.

You are an old artilleryman, very accurate anti-aircraft artillery for air defense, many times hit the amount in advance. If the rate of fire of the anti-aircraft guns is fast, it can completely form a barrage in a short time, so that the plane of the little devil has nowhere to escape.

If the rate of fire is slow, many shells may miss. In this case, shells will only be wasted. This large-caliber anti-aircraft gun was more suitable for dealing with Japanese bombers. In particular, when they were still flying in formation. ”

Let He Zhengdao say this, Zhu Definition thought for a while and nodded: "In this way, if we develop anti-aircraft guns in the future, we still have to develop anti-aircraft guns with a relatively fast rate of fire, not to mention the pursuit of the caliber of anti-aircraft guns?" ”

'Yes! If we can produce anti-aircraft guns, I personally would like to start with small-caliber anti-aircraft guns with a relatively fast rate of fire. But it is also necessary for us to produce large-caliber anti-aircraft artillery to deal with some high-altitude targets.

You are an old artilleryman, and you are also the commander of the artillery brigade of the column, and I believe you also know that the artillery of the little devils is now being updated, and their aircraft are also constantly being replaced. This means that the performance and speed of future aircraft will be better and better.

If our anti-aircraft firepower stays where it is, it will only continue to suffer. In the final analysis, the best way to deal with the little devil planes is to form our air force as soon as possible, and the best choice is to use planes for planes. ’

As a modern soldier who has used individual air defense missiles, He Zhengdao is indeed a little helpless about the relatively backward air defense methods in this period. But he knew that even such an air defense weapon would be extremely precious to the Eighth Route Army.

With the end of the live firing, He Zhengdao moved the Japanese soldiers in the prisoner of war camp to a secret camp outside the city to continue their detention. Three anti-aircraft artillery battalions and two anti-aircraft machine-gun battalions were deployed on the high hill west of the city.

When He Yingqin arrived in Yan'an, He Zhengdao received a telegram from the headquarters that the Japanese army was preparing for a large-scale bombing. The target of the bombing is likely to be Yulin City, where the independent column is holding the Japanese army.

After receiving the telegram forwarded by the headquarters, and the information may have been leaked from the Nationalist Government, He Zhengdao also knew very well that the secret war between the Kuomintang and the Communist Party and the Japanese army in intelligence during the Anti-Japanese War was also thrilling.

Even because of He Zhengdao's crossing, the Eighth Route Army had a counter-espionage signal detector, and many intelligence stations arranged by the Japanese army on the basis were eliminated. But for spies who don't use radio to transmit messages, it's naturally not easy to find out.

In order to complete this war of 'snake swallowing elephants', the Japanese bowl can be said to have been premeditated for a long time. In terms of intelligence gathering, they have made countless preparations. Many spies who have infiltrated the ranks of the Anti-Japanese War are difficult to identify without coming forward.

'Ordered front-line air defense observation posts, all of which have been on increased alert lately. As soon as a large number of Japanese planes appeared, we would immediately transmit the message to the rear of the ground. Air defense early warning orders were issued to garrison units in various localities, and air defense evacuation should be carried out at any time. ’

'Yes, Commander! ’

Thinking that the current news was received from Shijiazhuang, He Zhengdao looked at the map of Yulin and said with a little thought: "Inform the air defense observation post in Suiyuan to be vigilant against the Japanese fighters flying from the northeast."

Once a large number of planes enter our air defense zone, we must also make preparations for air defense evacuation. In addition, for the civilians and troops who are active outdoors, the level of air defense alert will also be strengthened, and once the Japanese fighters are discovered, they will immediately conceal the air defense on the spot. ”

In He Zhengdao's view, the Army Air Force of the North China Front Army alone was afraid that it would not be enough to show the Japanese army's retaliation against the Eighth Route Army. This means that the Japanese army is going to carry out a large-scale air raid this time, and I am afraid that the Kwantung Army will also be involved.

Although this is just He Zhengdao's speculation, 'not afraid of 10,000, just in case'. At least as far as the current situation is concerned, the strength of the Kwantung Army's army aviation is also very strong. And they took off from the puppet Manchurian area, and the distance was about the same as Shijiazhuang.

Just when the independent column was fully preparing for air defense, the delegation of the Central Army, which had been in Yan'an for three days, continued on its way according to the scheduled itinerary. This time, there was one more person accompanying the delegation, Vice Chairman Zhou.

Still the same as when they came to Yan'an, the delegation still went to Yulin by car, resting during the day and rushing at night. Considering the current grim air defense situation in Shaanxi, it is difficult to say anything even if He Yingqin is reluctant.

After all, if you really let the little devil's plane target them and their party, then carry out the bombing. There are not too many bombers at all, only one bomber or two fighters, and I am afraid that the delegation and the whole party will have to pay a heavy price.

Just when the delegation was still about a day's drive from Yulin, He Yingqin and others, who had just planned to set off from Suide City, suddenly heard the sound of air defense sirens sounding throughout the city. The sharp sirens startled everyone who was about to travel.

Vice Chairman Zhou, who came with He Yingqin, immediately said, "Zuo Quan, go and ask what's going on?" ”

'Yes! However, for the sake of safety, Vice Chairman Zhou, you should go to the air-raid shelter for a while! ’

'Good! Guard battalion, arrange for Minister He and his entourage to hurry to the nearest air-raid shelter for temporary shelter! ’

'Yes! ’

With the guard battalion taking He Yingqin and others, they hid in an air-raid shelter closest to them. Zuo Quan, who had already received the news from the Suide Garrison Brigade, also quickly informed Vice Chairman Zhou and his entourage, who were temporarily sheltering in the air-raid shelter.

'Vice Chairman Zhou, just now our air defense observation post has sent back information that the Japanese planes deployed in Shijiazhuang are flying towards our base area. In addition, in the direction of Suiyuan, the Kwantung Army also dispatched a large number of aircraft, which should have rushed to the independent column. ’

As soon as he heard this, He Yingqin was also startled and said: "The Kwantung Army also dispatched planes?" ”

'Yes! I had previously contacted the Independent Column via radio, and Xiao He's opinion was that the bomber formation that took off from Shijiazhuang should be heading for the Central Committee or the headquarters. The planes of the Kwantung Army should have been directed at them. ’

Regarding this kind of large-scale bombing that the Japanese army had been preparing for a long time, Vice Chairman Zhou really seemed a little worried. But at this time, a representative of the delegation said curiously: "Since the little devil is not coming for Suide, why do we hide in the air-raid shelter?" ”

Our prediction is more of a guess. Commander He of the previous independent column also deliberately reminded us that we need to be careful. According to the information we have, the Japanese army should have known that the delegation had arrived in the Suide area.

This means that the Japanese fighters flying from the direction of Shijiazhuang are also likely to bomb Suide. Even from the fact that the Japanese army took off the bombers at this time, it can be seen that the Japanese army should have made careful preparations and knew that our convoy was ready to set off.

If by this time, we have already left Suide City, and at that time, such a convoy will not be able to hide the Japanese bombers at all. Once the enemy planes are really coming at us, we will not be able to achieve effective air defense in the field.

To avoid Japanese air raids, you have to fight a time difference. For the little devils, any city in our base area may become their bombing target. In this kind of thing, we don't dare to leave anything to chance! ’

After learning the lessons of the previous bombing, the Eighth Route Army has the mentality of 'not being afraid of 10,000, just in case' in the matter of air defense. Even after the air defense evacuation, the little devil air force did not bomb them.

But for the Eighth Route Army, it was just an air defense exercise. However, if the plane of the little devil really appeared in the sky over some cities, and the city did not carry out effective air defense evacuation, it would inevitably become the target of the Japanese bombing.

In the absence of air defense evacuation, once the Japanese army is bombed by crazy air raids, the possible losses are incalculable. No one dares to risk the lives of ordinary people and gamble on a fluke! (To be continued.) )