At 7:13, at the Dingzhou Xuebing Army Base, the terrible air defense siren sounded, and in the northeast direction, the Japanese planes that covered the sky and the sun pressed straight over. About half an hour before that, after receiving the warning that the Japanese planes would arrive in half an hour, the Cadet Army Air Force led by Tie Linfei had a total of 67 fighters in the air. And according to the plan formulated before, all of them avoided the sky in the southwest direction away from the base, and then flew in a circle to the east, in order to wait for the call of the base to encircle and annihilate the Japanese bombers who had dropped their bombs. The commander of the Air Force personally flew fighter planes into the air to meet the enemy, which is rare in the history of air warfare in the world. This is mainly because the training cycle of pilots is too long, and the air force units of the Cadet Corps are so young that they are now able to fly planes into the air, except for a few Jews and overseas returnees, all of the others come from the original Cantonese Air Force.

Hou Debang and others had already taken refuge in the air raid bunker early. And now those who are still on the surface of the base are all combatants. Because Liu Dakai wanted to preside over the overall situation, he stayed in an air defense fortress located near the main entrance of the airport. The so-called anti-aircraft fortress is actually a stone fort, and what makes it different from ordinary bunkers is that there are four twin 30 mm anti-aircraft guns and eight twin 12.5 mm anti-aircraft machine guns erected on it. Liu Dakai has no tension at all before the gap comes. In fact, it was the first time to command such a large-scale air defense battle, and he was very much looking forward to being able to hand Ouyang Yun a satisfactory examination paper. Standing at a lookout, he picked up the telescope and looked in the direction the Japanese plane was flying. After a while, he shouted excitedly: "There are obviously more bombers than fighters, and the little devil is destined to go around this time." ”

In the pre-war arrangement, according to the information in Ouyang Yun's computer, Hou Debang copied the graphics of the Japanese machine during this time period. And according to Ouyang Yun's instructions, this time the anti-aircraft fire will give priority to the so-called "fighters". As for the attack aircraft (that is, the bomber, but because the carrying capacity is not large, it can only be called a light bomber, that is, an attack aircraft), it will be handed over to Tie Linfei and them to deal with.

There are three main types of fighters dispatched by the Japanese army this time, namely Ki-1 (heavy bomber made by Mitsubishi - heavy bomber), Ki-2 (light bomber also made by Mitsubishi), Ki-3 (light bomber made by Kawasaki); There are three models of fighters: the Ki-5 (built by Kawasaki in 1934), the Ki-8 (built by Nakajima in 1934), and the latest Ki-12 (a recyclable fighter with landing gear that Nakajima just built this year).

These fighters were already familiar to the air defense officers and men at the base more than a month ago. And Liu Dakai is even more familiar with it, so he quickly judged the true strength of this Japanese machine group.

In the air, as the line of sight got better and better, gradually, the whole picture of the Dingzhou base was presented in front of the Japanese pilots. This time, the person in charge of the air raid was a big sa named Shinnosuke Sasaki. Dazuo was piloting a brand-new Ki-12, and he shouted over the walkie-talkie: "Daliang, is it the Dingzhou base below, confirm the target." ”

Daliang is the pilot who pilots the reconnaissance plane and is responsible for guiding the direction of the entire fleet. He replied on the intercom: "Confirm the target." ”

Sasaki Ha Raka laughed and shouted, "Gentlemen, get ready to fight!" As in previous exercises, the 1st and 2nd Fighter Squadrons were responsible for keeping watch on both flanks, and the bomber squadrons carried out bombing missions. Once again, priority is given to the bombing of warplanes and airfields in China. ”

The Japanese planes began to separate in an orderly manner, and the fighters of the two squadrons began to assemble on either side, while the bomber group increased its speed and flew towards the target.

On the ground, seeing that the Japanese aircraft group was getting closer and closer, many soldiers in the stone fort became nervous, and from time to time someone asked Liu Dakai for instructions: "Director, you can fight!" ”

Liu Dakai shook his head firmly: "The distance is too far, and firing at this time is equivalent to Lang Fei ammunition." Wait until they start dropping bombs. ”

At the beginning of the construction of the Dingzhou base, a considerable number of false targets were built, among which the pseudo-airport was the top priority, and the real airport had been covered by a lot of camouflage made of fast camouflage cloth at the moment.

The Japanese planes were getting closer and closer, and under the background conditions of the increasingly grim air defense siren, more than 30 bombers came straight to the pseudo airfield, while at the same time, other bombers pounced on the nearby pseudo hangar.

The real hangar of the Dingzhou base is built in the mountains. Seeing that the little devil really chose the wrong target from the beginning, Liu Dakai had to admire the little chief's foresight. On the ground, especially when you look closely, the fake airfield, the hangar, and the planes are too fake, but from the air, it is difficult to distinguish them. When Ouyang Yun first proposed to build these camouflages on a large scale, he was opposed by many people, thinking that Lang was wasting money. And once faced with actual combat, the role of these camouflages is suddenly manifested.

As the Japanese machine began to lay eggs, Liu Dakai shouted: "Unit No. 1, shoot!" ”

Dingzhou's air defense capability was divided into three sequences during peacetime exercises. This one of these acts as a decoy, and they will try to attract the attention of the escort fighters as much as possible. And next, No. 2 and No. 3 are the real backbone of air defense. It was not easy for the Japanese planes to make a trip, and their main targets were airfields and fighter planes, and those bombers were naturally reluctant to drop bombs on anti-aircraft fire points. In this way, the task of clearing the points of anti-aircraft fire naturally had to be entrusted to those fighters who were only equipped with aircraft guns and machine guns, but were not equipped with bombs. And once the Japanese escort fighters were attracted by the firepower of Unit 1, then what awaited them would be exponentially the firepower to return fire.

Ouyang Yun is stingy! The Air Force was taken too seriously, and although it was forced to dispatch the Air Force, in order to minimize the losses as much as possible, such a move was arranged before this. However, those who understand him know that the reason why he did this is, on the one hand, cherishing the hard-won strength of the air force, and on the other hand, it is because he takes into account the lack of actual combat experience of his pilots, and he is afraid that they will suffer losses when they fight against the Japanese planes.

From the air, the bombing by the Japanese planes had a good effect, and the airfield was ablaze in the first round of bombing. The warplanes parked at the airport were torn to pieces by the explosion and turned into fuel in the fire. The hangar was not spared, although some of it was still intact, but it was believed that it would not be long before it, including the warplanes parked inside, would be engulfed in flames.