Jeep is the abbreviation of the English "general function" two words GP, out of preference for the famous US military Jeep, but also out of guilt for plagiarizing the concept of Jeep, Song Zhewu decided that his general off-road vehicle should also be called Jeep.

Song Zhewu asked Wang Dong to preside over the development of the jeep technical parameters, using the later US military jeep and Willis jeep, as well as the equally very famous, known as the lightning fast horse of the German army in World War II widely used military 82 type car, that is, the main technical parameters of the "barrel car", to synthesize, learn from each other's strengths, and strive to design a military vehicle that is not inferior to the jeep, and may even surpass the jeep.

Song Zhewu's technical requirements for his jeep were: easy to hide, with a body height of no more than 850 mm; Four; A 40-horsepower air-cooled engine with an engine displacement of no more than 2 liters will consume less than 15 liters of fuel per 100 kilometers; The speed should be fast, the maximum speed should be greater than 100 kilometers per hour; The weight of the self-weight shall not exceed 700 kg; In order to cope with muddy road conditions and for towing purposes, low-pressure tires are used. At the same time, it should have four-wheel drive, and the four-wheel reading suspension system, and the suspension system adopts torsion bars; The structure should be as simple as possible, and there should not be any parts that are not related to driving; The front windshield should be able to be folded forward, and the top tarpaulin can be removed and rolled back.

The main tasks of the jeep are: weapons and ammunition transport vehicles, personnel transport vehicles, ambulances, large-caliber machine gun carriers, reconnaissance vehicles, command vehicles, radio vehicles, etc.

The changes to the tractor were much simpler, and Song Zhewu only asked Wang Dong to control its production, and the main production capacity should be used for trucks and jeeps.

As for the car, Song Zhewu did not mention it, but Wang Dong understood that it was impossible to produce the car, at least temporarily, and it could only be produced after the war.

After listening to Song Zhewu's explanation, Wang Dong readily agreed. Although he was a little unwilling that his car could not be introduced to the market, his hidden desire to have the first Chinese-made car in the world could not be realized. But he understood better Song Zhewu's resolute intention to strengthen the army.

Song Zhewu has high requirements for trucks and jeeps, such as a 40-horsepower air-cooled engine with an engine displacement of no more than 2 liters, and a fuel consumption of less than 10 liters per 100 kilometers and a maximum speed of more than 100 kilometers per hour.

However, Wang Dong not only did not feel embarrassed by this, he was even very excited, and the courage to meet the challenge is the common surname of the Wang brothers.

Wang Dong was not only amazed by Song Zhewu's genius ideas from the bottom of his heart, but he even looked forward to the successful development of these three cars.

If his development is successful, the Fourth Route Army will become the first unit in the world to have its own special military model vehicles, and his name will be remembered by everyone in the Fourth Route Army, and even by all Chinese. This great glory could not help but excite him.

At Wang Dong's insistent request, Song Zhewu not only named the trucks that were about to be put into production and were designed with Wang Dong as the main ones, but also named the new trucks and jeeps that were pre-researched and imitated.

In the end, the truck that had been successfully developed was named Iron Horse by Song Zhewu; The pre-developed ten-wheeled truck was named Puma; The imitation bulldog was named Hummer; The jeep was named Tiger Cub.

For the two famous trademark brands of Puma and Hummer that he "shamelessly" plagiarized and misappropriated, Song Zhewu could only helplessly say "sorry".

Under the auspices of Zhou Liqun and Sun Sihua, deputy director of the Weapons Research Institute, that is, Sun Sirong's elder brother who ran out of the Gongxian Arsenal, the Weapons Research Institute has trial-produced two semi-automatic rifles of different calibers. The caliber of these two rifles is 6.5mm and 7.92mm, respectively.

Both semi-automatic rifles, except for the caliber, are structurally identical.

Both rifles are 1280mm long, equipped with a 420mm variable-cross-section, three-edged bayonet, and a double row of 10 rounds in the magazine, for a total of 20 rounds.

The automatic mode adopts a short stroke of the conductive piston, and the locking method is a rotary locking method.

The specific parameters are: the full length of the gun is 1280 mm; Total weight (unloaded) 4.25 kg (4 kg for 6.5 mm caliber), barrel length 676 mm, 4 rifling, right-hand rotation, magazine capacity 20 rounds, 6.5 and 7.92 mm rounds fired, aiming tool is a sheet crosshair, eye-piercing door, muzzle velocity 735 m/s; The combat rate of fire is 35~40 rounds / min; effective firing range 400 meters; The range of the gauge is 1000 meters; The maximum firing range is 1500 meters. Of these, the 6.5 caliber has a maximum firing range of 1800 meters.

The reason why the Weapons Research Institute designed a semi-automatic rifle so quickly is also due to Song Zhewen in the United States.

Back in 1920, Garland began designing semi-automatic rifles at the Springfield Arsenal. In 1929, the sample gun was sent to the Aberdeen Proving Ground to participate in the selection test of the new rifle of the United States, which was the prototype of the famous M1 semi-automatic rifle.

It's just that before the U.S. military had time to select the model, it encountered an economic crisis, and the U.S. military had to put aside the selection work because of the lack of military spending. At this time, the Springfield Arsenal also had to lay off staff due to a sharp drop in orders.

As for the engineering designers of weapons, aircraft, vehicles, etc., Song Zhewu had already instructed that those who could be recruited should be recruited, and the more the better, even if the other party was only willing to sign a contract for one or two years.

As a result, several engineers laid off from the Springfield Arsenal were recruited by Wang, including a designer who participated in the prototype of the M1 semi-automatic rifle.

Of course, it costs a lot of money to get the design principles and sketches of this rifle.

It was with the help of the design principles and sketches of the M1 that Zhou Liqun and others combined their own research results to design and manufacture these two rifles of different calibers in a short period of time.

These two guns are slightly longer than the M1 prototype gun, mainly because Zhou Liqun and others took into account the assassination requirements that Song Zhewu has always emphasized and the training and combat characteristics of the Fourth Route Army.

Although the length of the gun is 1280mm like the Type 38 rifle, the standard bayonet used is longer than the Bayonet.

As the length of the bayonet increases, the strength of the steel is bound to increase, and in the absence of high-strength alloy steel with higher strength, it has to find a way in the structure. Therefore, according to Song Zhewu's suggestion, it was designed as a variable-section triangular thorn. Such a bayonet is obviously stronger than a single-edged bayonet.

Accompanied by Zhou Liqun, Sun Sihua, Liu Dugong, director of the machine gun branch of the North Machinery and Equipment Company, Guo Fengchao, director of the submachine gun factory, Zhou Weifeng, director of the gun factory, Guo Luzhong, director of the hydraulic press factory, Zhao Peiji, director of the artillery factory, Zhang Yuzhen, director of the artillery shell factory, and other weapons experts, he personally came to the shooting range to test the gun.

The reason why these factory directors are here is because Song Zhewu knows that his scientific research strength is still very weak and talents are very scarce, which requires him to use every strength on the blade.

During the Yan Xishan period, his military experts were arranged to serve as leaders in various factories, which could certainly realize the advantages of insider management, but it was also a great waste of talents.

After Song Zhewu reorganized the Shanxi Arsenal, he instructed Xiao Guodong to assign assistants to all the technical experts who held leading positions in the arsenal, and these experts were also researchers in various research offices of the Weapons Research Institute. These assistants do the regular work of the arsenal, and they only come forward when there is a problem that is difficult to solve.

After firing 10 rounds from each rifle, the target announcer reported a good score of 98 and 95 rings. Although Song Zhewu is very confident in his shooting level, it should still be said that both rifles are indeed very good.

The only drawback is that the recoil of the 7.92mm caliber rifle is still very large, and even Song Zhewu feels discomfort in his shoulders.

In the warm applause of everyone, Song Zhewu put down the gun, smiled and waved his hand and said: "The two guns you designed are indeed very good, if Chief of Staff Xiao comes to fight, it may be a full ring." ”

Xiao Guodong said with a smile: "Wen Ge, don't brag for me, there are all experts here, and the level of any one will not be worse than ours." ”

Taking the opportunity to speak, Song Zhewu turned sideways and moved his shoulders slightly unobtrusively.

But Song Zhewu's embarrassment still made Zhou Liqun see it.

Zhou Liqun said with some embarrassment: "Commander, the recoil of this 7.92mm caliber rifle is still a little larger. The commander's physical fitness is good, and he will only feel a little uncomfortable, if he is a recruit with a thin body, after these ten rounds, his shoulders will be red and swollen, and even his movement will be unnatural. ”

Zhou Liqun then said with great regret: "The 7.92mm rifle originated in Europe, and it is more suitable for strong Europeans. However, it is indeed powerful, as long as it hits the human body, it will cause large wounds, and it is very difficult to treat. ”

"And our 6.5mm caliber rifle, because of the long aiming baseline, so the shooting accuracy is better, in terms of shooting effect, it is very similar to the 38 rifle. Although the recoil is small and easy to control when shooting, it has high reliability and high accuracy. The warhead has a stable flight and an excellent penetration effect. However, it is precisely because of its high stability and special surname that the lethality is not high, and it is basically through the surname injury, and it is difficult to kill with one shot if it is not hit in the vital part. In the end, there was also a debate within our institute about which caliber to choose, so we had to ask the commander to decide. ”

Zhou Weifeng, director of the rifle factory, stepped forward and said: "Commander, in fact, there is no solution to the problem of 6.5mm caliber bullets penetrating the surname strong......

(To be continued)