It was fast to August.

Feng Ruhai and Professor Hua Mingyuan of Southwest University's School of Aeronautics stood in Zhang Shusheng's office, waiting for him to make a final decision. There were two reports on the table.

After Zhang Shusheng roughly read the report they handed in, he motioned for the two to sit down and said, "The southeast is not slow, the new plane has successfully flown so quickly." ”

The other report on the table, opening the first page, is a photo of an airplane, an old aircraft with two wings, and the words "The first aircraft designed and produced by China itself" -- Luo Shiwen No. 1, Guangdong, Dashatou Airport, etc.

Feng Ruhai also looked at the internal reference forwarded to the Aviation Research Institute by the headquarters of the militia group, and commented on the surname of this aircraft: "Yang Yixian still has some ability, and it is rare to be able to build this biplane with some of the parts he bought." ”

Zhang Shusheng is extremely satisfied with this young man, he can't see the immaturity of his peers at all, 20-year-old him, his performance in all aspects is enough to crown the word genius.

"If you can't do it economically, I'm afraid you won't be able to build a few old biplane planes." Zhang Shusheng knew better than anyone else about the situation in the southeast, and Feng Ruhai was anxious for fear of being overtaken by the southeast, but he was not worried about this, "In this way, Professor Hua, how sure are you about your plan to build a larger low-speed wind tunnel?" ”

During the construction of the wind tunnel, Zhang Shusheng only had gray hair, and repeatedly experienced failures and pains, and the technicians and construction team worked hard for two years to build the Zhushanping No. 1 low-speed wind tunnel that is now in use.

Despite the fact that this is just a small low-speed wind tunnel with an air flow speed of less than 130 m/s in the experimental section, it has made great contributions to the successful development of the Jian-1 aircraft. Although almost all the key data of the aircraft can be obtained by Zhang Shusheng, such as the aerodynamic layout and detailed design of the fuselage, the actual development process and the process of testing the fuselage still use this wind tunnel, which not only allows scientific researchers to demonstrate the data, but also trains technical personnel.

Otherwise, data is one thing, and if the built aircraft is not tested by wind tunnel experiments, it may disintegrate as soon as it is tested into the sky.

"District Chief, the theoretical technology of the wind tunnel, you said last time that there are some ready-made technical reserves in the militia system. I think that in this way, although there will be many difficulties in the construction of small and medium-sized wind tunnels, it is only a matter of time before they are completed. At present, it is difficult to support the development of more advanced aircraft in the Zhushanping No. 1 wind tunnel, and after the completion of the J-1 research and development mission, the fighter development team has already set up a project to develop a more advanced J-2 aircraft. Therefore, this wind tunnel is urgently needed. ”

"Well, I approved this project, and I hope you can show the enthusiasm you used to build the No. 1 wind tunnel, and strive to build this small and medium-sized wind tunnel within a few years." Zhang Shusheng took out a pen and personally signed his name on this very detailed plan. After the final decision, with the high efficiency of the district political axe, the first phase of R&D funds will be in place within a week.

Although the science and technology of the militia group has undergone eight years of development, and Zhang Shusheng's technical support and vigorous purchase of foreign machinery and equipment, it is still far inferior to the West.

We can only adopt this method of running in small steps and by concentrating resources and technical personnel to tackle key problems. The success of airplanes, for example, is an example. It's not that the overall technology of the militia is so powerful, but Zhang Shusheng has given priority to developing it like Saburo.

"Great!" Feng Ruhai and Hua Mingyuan are both very happy, wind tunnels are an important part of the aviation industry, with a better wind tunnel, in order to develop more advanced aircraft.

Zhang Shusheng emphatically mentioned, "Professor Hua, after the School of Aviation came out of Southwest University, your burden has become heavier. In addition, Ruhai, there is a shortage of personnel at the moment, and you have to be distracted from managing the newly formed pilot school. It's not just an airplane, it's also necessary to have a qualified pilot. ”

"Don't worry, District Chief Zhang. The foundation of the aviation academy is unshakable, it is just that the reading power comes out. ”

The head of the district is assured that at present, the flight school is mainly composed of three pilots and several returning international students serving as flight instructors, and the institute mainly sends some theoretical experts with excellent skills to give lessons to the flight students. Strive to have the first batch of 20 students have the opportunity to fly two or three times a week. (The training aircraft is an old-fashioned biplane) but on the whole, there is still a serious shortage of scientific researchers, and I hope that the district chief can think of more ways. ”

Zhang Shusheng knows that every department and every research institute is short of people. For example, the Aviation Research Institute will soon be divided into one and two institutes, one for the development of fighters and the second for the development of bombers. Out of cost considerations, although the Jian-1 is not advanced enough, it is completely in line with current needs, and on this basis, the H-1 bomber with a bomb load of 1.2 tons will also be equipped with a batch.

After the two went out, Zhang Shusheng picked up the phone: "Hello, I'm Zhang Shusheng, please pick me up from Principal Xiao of Lishuping No. 1 Middle School." ”

"District Chief, I'm Xiao Xueneng." After the communication office at headquarters transferred, a voice soon came from the phone. "Principal Xiao, in a few days, I will specially approve a student surnamed Qian to come to your school, yes, it is a freshman. Well! You don't need to take special care of it, but try to provide him with some learning convenience, such as teacher guidance and library borrowing, etc., and give him the highest borrowing permission. ”

Hanging up the phone, Zhang Shusheng was slightly distracted, then the corners of his mouth rose slightly, and he took a clean work clothes hanging on the side and went out. Today is an important day.

The test site, located five kilometers east of Lishuping, is another military test base for the militia group.

"Stadman, you're really big enough to build this guy."

A steel monster was parked on the test ground, and the raised muzzles and powerful side-by-side machine guns made those standing nearby feel a kind of hideousness that belonged to the beasts of war. Although Zhang Shusheng has seen this monster many times, every time he sees it, he will sigh at the power of this war machine.

The tank in front of him, named Tiger Type 1, is the final result of a team of Chinese and foreign scientists led by Schedermann in the past few years.

"Zhang, except for the fact that this tank is a little heavier, it almost completely meets your requirements. You see, this powerful 75mm tank gun is Huffmann's masterpiece, and it can tear apart our German chick-like tanks with a single shot. Today, Steadmann is in his thirties, and after his family's foundation was destroyed, he and his family found a new life in China. Together with the former brother Hefman, he obsessively devoted himself to the research and development of a new tank for the militia.

"Boss, don't worry, those little girls in Europe, in front of this big guy, will be pushed down one by one, hahaha......" Hefman also laughed. These two profligate guys, after being abandoned by the motherland, also completely lost their heart to go back, especially Hefmann, who has lived in Xiaoqingshan all these years, not to mention how comfortable he has been, eats and drinks well every day, and maintains a close relationship with two or three German female staff in the Dongchuan area.

"Let's start the experiment." Zhang Shusheng nodded and ordered the experiment to begin. Two domestic academics and two security officers climbed into the tank together.

"Boom~" After a violent diesel engine sound, a large cloud of oil smoke erupted from behind the tank buttocks, and in the rumbling engine sound, the tank first shook, and then the track was driven by the driving wheels, and ran over the lawn of the test site to start.

The engine was getting louder and louder, and the tank gradually increased the speed of the tank to 20 km/h with a large 400 horsepower diesel engine, and roared towards the distant shooting range.

While feeling the vibration from the ground, Zhang Shusheng took the telescope from the security personnel next to him, and saw the Tiger Type 1 tank driving all the way to the shooting range more than 1,000 meters away.

"Boom!"

The tank fired its first shot at the mountainside in the direction of the shooting range, and through the binoculars, a huge amount of smoke from the explosion could be seen rising from the mountainside.

Although the sound ......of heavy machine guns is no longer loud from more than 1,000 meters away, in the high-powered telescope, you can still see the tank's parallel machine guns firing wildly.

Tanks, which had already run out of shells and ammunition, received a command to return from the on-board radio.

"Zhang, how about this tank? I didn't disappoint you. Large-caliber tank guns, low defensive design, heavy armor, fire control equipment, but also on-board radio equipment"

Steadmann put down the binoculars with satisfaction, his heart was full of pride, although he had lived happily in China in the past few years, but it was not until the birth of this Tiger that he received a strong sense of pride and honor.

In his words, he didn't have to belong to Germany, but he had to be loyal to his honor, so he chose to stay in the militia because there was always a lot of excitement for him to do tank research. His goal is to make a name in tank history.

Zhang Shusheng nodded, this Tiger Type 1 tank with a 400-horsepower diesel engine was designed as the prototype of the German Tiger tank more than ten years later. Although the data and technical indicators are much worse, such as the horsepower of the engine is half less, the design concept is extremely correct.

The low tank hull, the heavy turf, and the enhanced climbing are able. The vehicle has 4 people, the front armor reaches 60mm, it is equipped with a 75mm tank gun, 40 rounds of ammunition, and a 7.92mm side-by-side machine gun. The maximum speed on the road is 25 km/h.

On the whole, this is a powerful tank, the only deficiency is its weight: 28 tons of this weight if put in Europe, the highway is vertical, the transportation is convenient, a flat environment, it is a trivial matter, but today's southwest, except for the main road of the county can be connected to ordinary roads, other places are blank, at most there are only small roads. Moreover, there are many paddy fields in the southwest, and in such a situation, if the 28-ton tank is fighting in the field, it may even sink headlong into the rice field and cannot climb out.

After the test, Zhang Shusheng called Schidmann and a German expert, several domestic scholars and technicians, "I am very happy to see that everyone has built such a powerful tank." However, there are some practical issues that we must pay attention to. For example, it is too difficult to manufacture, and large-scale production will be difficult to achieve at least until 1927. The cost of a single tank is too expensive, and if I equip a division, I risk going bankrupt tomorrow. In other aspects, the speed is too slow, the engine manufacturing problem, the steel problem, all of which are difficult for us to overcome in a few years. ”

"Zhang, the development of this tank is not easy, you can't just throw it back into the steelmaking furnace and recast it with a word." Schedermann understood these problems, but he couldn't resist the temptation to design a successful state-of-the-art tank that combined firepower, speed, and defense.

"This tank can be equipped in small quantities, and I have also organized other experts to discuss and come up with another tank plan that is more suitable for the current militia to use."

Zhang Shusheng took out a drawing and handed it to them.

"Light tanks?" Shidman wondered.

Zhang Shusheng: "Yes, I hope you can complete this Tiger Type 2 light tank as soon as possible." The Tiger 1 medium tank will only equip a small number of elite troops, while the Tiger 2 tank will equip more. ”

The reason why they were asked to develop the more difficult Tiger Type 1 tank at the beginning was actually to make sufficient technical reserves, and while developing medium tanks, they should also develop better light tanks that have been used in recent years.

In the next few years, the development of science and technology will be more logical, and the emergence of Tiger tanks and Jian-1 aircraft is only the beginning of a start-up type. It will be more logical later.

(To be continued)