More than a dozen Japanese fighters plunged down from the clouds, constantly dropping bombs and strafing in the dive!

The fighter plane flew extremely low, sometimes almost as if it was flying close to the scalp, and Zhang Ran seemed to be able to see the hideous and rampant faces of those Japanese pilots in the cabin from the ground!

"Lao Tzu Cao Nima!"

I don't know how many soldiers screamed in anger, holding their rifles and shooting with a bang, they lacked the power to empty fire, this is the only means of counterattack!

"What about the Czech? Give me Lao Tzu's Czech style, and Lao Tzu will sweep them to death! ”

Wang Wenping was also screaming angrily, not only because of the casualties, but also because of the arrogance of those Japanese fighters swaying as if no one was around, making him feel that he couldn't swallow this breath at all if he didn't sweep it a few shuttles. With-Dream- . lā

After half an hour of wanton bombardment, more than a dozen Japanese fighters left, adding a lot of ruins to the already ruins in the county.

"It's such a bully!"

Everyone screamed, and even Jia Quantao, who had just arrived, stomped his feet with hatred!

This happened not only here, but also in the many vicious battles that he and Kang Ting had experienced!

There is no way to indiscriminately bombard the artillery fire of the little devil's plane, but to spit at the other side!

Zhang Ran was even more angry!

Now the little devil's fighter has not even come out of the Zero fighter, it is the tattered 95-type, 91-type and 92-type, which does not fly high, does not fly fast, the firepower is not strong enough, and the turning is not flexible enough!

He has seen the J-20 and other supersonic fighters roaring in the sky decades later, but now he is pressed to the ground and rubbed over and over again by this broken plane, and he doesn't even have a chance to fight back!

It's a shame!

Where can Zhang Ran swallow this breath?

"Don't think about it, why don't you even have an anti-aircraft machine gun now, what else can you do?"

Kang Ting patted Zhang Ran's shoulder empathetically and said, "Do you really think you can use a rifle to knock this plane down?" It's not that you can't really beat it, it's just that the odds are too low......"

Anti-aircraft machine guns!

Zhang Ran gritted his teeth fiercely, and said in his heart that there is no anti-aircraft machine gun, so we can build it now-little devil, you'd better make today's air raid the last time, otherwise Lao Tzu won't shoot down a few fighters from you, and I will have your surname!

Today's fighters are no faster than the fighters of a few decades later, and they fly faster than steel, and ordinary guns can't penetrate even if they hit.

In order to save resources and reduce the weight of the fuselage, the little devils, whether it is the 95, 91 and 92 fighters, are all thin iron sheets, and even wood shells, which can be worn as soon as they are sold!

I don't dare to say about the fighters decades later, but the fighters at this time, as long as these fighters are still so arrogant and dare to fly so low, Zhang Ran doesn't believe that they can't be defeated!

"Gaiheliang is not an expert in weapons? Where is he? ”

Zhang Ran looked back at Lu Yan and Wang Changtian and asked them to immediately call Gai Heiliang to come over to see him!

The detachment did not have an anti-aircraft machine gun, and although it had the ability to build a gun, it had not yet been officially produced, and it was obviously impossible to build an anti-aircraft machine gun now.

Even if it can be built immediately, it won't be able to catch up.

What he's going to do is to modify!

Historically, the Eighth Route Army also suffered a loss without air defense machine guns, and the little devil's fighter planes came over as chic as visiting the back garden.

In order to change this situation, the Eighth Route Army came up with a solution, that is, to use modified machine guns.

Quite simply, it is to make a machine gun mount and expand the angle at which the machine gun fires upwards, so as to achieve the purpose of air defense.

Zhang Ran also wanted to try it.

It's hard to say whether the little devil's fighter can really be taken down, but at least let the little devil know that this is not a public toilet, and it is not a place where you can come and go whenever you want!

Gai Heiliang soon arrived, and Xu Kunjun, a mechanical expert who had been under scrutiny with him these days, also came.

After listening to Zhang Ran's request, Gai Heiliang immediately analyzed the data of the detachment's existing machine guns based on experience.

A weapons expert is a weapons expert, and it is by no means comparable to a local military worker like Mao Drill.

It is not a big problem to let them imitate the cat and the tiger, let them repeat the experiment again and again, and finally make something.

After all, practice makes perfect.

It's like a journeyman on a production line, who knows what it is but doesn't know why.

But the regular military industry is different.

They can use all kinds of data from weapons and integrate that data to get a relatively reliable result, and based on the data alone, they know what they can get, and they also know why it is happening.

Just like now, after listening to the names of the several machine guns currently available in the detachment listed by Zhang Ran, and knowing that Zhang Ran wanted to achieve the purpose of air defense by modifying these machine guns, he immediately discharged the two machine guns, such as the Czech type and the crooked handle, leaving behind the 92 heavy machine gun and the Makqin heavy machine gun.

"The Czech-style and crooked bullets are light, the rate of fire kinetic energy is not enough, and shooting in a straight line is okay, but if you shoot at a high altitude, it is useless!"

Gai Heiliang said: "Actually, the 92 heavy machine is not good, but the Makqin is a little more reliable when it is converted into an anti-aircraft machine gun - this is also in terms of the height of the little devil fighter dive before, in the final analysis, Makqin is not a special anti-aircraft machine gun!" ”

Modifying the 92 Heavy Machine is also an addition in Gai Heiliang's eyes!

It's just a Makqin, the firepower is seriously insufficient, although the 92 heavy machine is not as good as the Makqin, but it is a little stronger than the Czech and crooked handles, and after the modification, it can enhance the ignition power to some extent, hoping to have the effect of shooting birds indiscriminately, maybe you can get a little luck!

After saying this, Gai Heiliang immediately began to compose the modified machine gun mount, and after the composition was completed, it had to be sent to the detachment headquarters to be handed over to the blacksmith workshop for processing, and then sent over.

"Captain Zhang, can I give some advice?"

After Gai Heiliang finished speaking, Xu Kunjun was busy speaking on the side.

"As long as it is helpful to the fighter plane of the little devil, Mr. Xu, you can mention it!" Zhang Ran said.

"In the past two days, I observed the air raid of the little devils, and the fighters that the little devils came over were mainly 91 and 92, and their flight speed was not fast!"

Xu Kunjun immediately spoke, and according to his understanding of machinery, he took the sketch and explained to everyone as he spoke: "At an altitude of 3,000 meters, the flight speed of these two aircraft can reach about 90 meters per second, but when flying at low altitude, their speed is much slower, because they have to reduce their speed if they want to drop bombs and strafe - generally speaking, the speed of the fighter is at most sixty or seventy meters when diving!" ”

"If we can shoot at the front of the Devil Fighter......"

Xu Kunjun drew as he spoke: "According to the flight speed, the shooting time is ...... in advance."

On the drawings, one represents the flight route of the Japanese aircraft, and one represents the route of bullet firing diagonally into the sky, blocking the flight path of the fighters!

"I will make a marker in the direction where the plane is flying, and when the little devil's fighter flies over the marker, everyone will shoot, which will definitely greatly increase the chance of hitting the devil's fighter!"

When Xu Kunjun said this, his face was flushed with excitement, and he looked like he had already shot down the little devil's plane!

It's just that when he stopped writing and looked up to see the confused expressions on the faces of Kang Ting, Shi Yuan, Thin Monkey and others, his heart suddenly cooled by half - this is special, it is obviously playing the piano to the cow!

Zhang Ran didn't understand either.

But that's okay!

Zhang Ran, who has experienced the era of the information explosion decades later, has a vision far beyond ordinary people.

Although he didn't understand, he knew very well what the principle represented by Xu Kunjun in those lines that he hastily drew on the paper!

It can be said that these lines drawn by Xu Kunjun are much more likely to increase the possibility of taking down one or two fighters of the little devils, even more than the possibilities provided by Gai Heiliang's modified machine gun!

Zhang Ran didn't expect that mechanical experts could still play such a role!

He had to sigh that the power of knowledge is really too powerful!