The Aircraft Research Institute is located in Wuzhuang, which is forty miles away from Lantian County, and the terrain is open and flat, and Yi Zhengde, who has a lot of money, bought all the surrounding tens of thousands of hectares of land in one go, leaving it barren.

The airfield is not large, only a simple cement runway has been built, but the requirements for the runway are not high, and the several planes currently used for the experiment only need a piece of grass or a gentle slope to take off and land.

The newly relocated aircraft research institute and the separated helicopter research institute are not far from the airport, and behind them is a factory building, and a large new two-story red brick building is very eye-catching from a distance.

Although all the local people in Wuzhuang have been relocated, a steady stream of scientific research personnel, newly recruited college students, skilled workers, a large number of army engineers and supporting subsidiary personnel have quickly made Wuzhuang prosperous and lively.

Yi Zhishu arrived in Wuzhuang and lived directly in the only guest house, he was really a little tired after taking a two-day train, took a hot bath and slept again, and his spirit recovered, and when he entered the living room, he saw Yi Zhengde and Zhao Liewen reading the newspaper quietly, and couldn't help but smile, "Go out and go around." ”

Wuzhuang is not big, there is only one street of no more than 200 meters, but banks, posts and telecommunications, newsstands, bookstores, shops, teahouses, restaurants, barbershops, snack bars, etc. are all available, perhaps because they have already gotten off work, it is a little lively, and there are many pedestrians on the street.

The three of them strolled all the way, walked around, entered a teahouse at random, and asked for a private room to order tea, Yi Zhengde introduced softly: "All the shops are built and operated by us, and there are no outsiders in the entire Wuzhuang." ”

Hearing this, Zhao Liewen couldn't help laughing and said, "This has really become a paradise." ”

"Xanadu is very apt." Yi Zhizhi said: "It's remote, but there is running water, electricity, heating, telegraph and telephone, as well as airplanes and cars, and daily needs are also readily available, and they are basically isolated from the outside world, isn't it a paradise?" ”

As he spoke, he said with great certainty: "Good, very good!" Thoughtful and thoughtful, only in this way can they take root here with peace of mind and do research in a down-to-earth manner. ”

After a pause, he continued: "In addition, it is necessary to build parks, sports grounds, provide them with places for leisure and exercise, and organize the army's art troupe to come to perform, in addition, we must also consider building schools to relieve them of worries." ”

Yi Zhengde smiled: "Didn't you say that this place is only temporary? ”

"For the time being, it can be as short as 10 years, and as long as it may be 20 years, or even 30 years." Yi Zhizhi took a sip of tea and said slowly: "The appearance of the aircraft in Shanghai has caused a sensation in the world, but it will take a long time to put the aircraft into the military field."

Judging from the current intelligence, the world's major powers are actively developing aircraft, but none of them have a military background, after all, no one has realized the huge military value of aircraft.

As for helicopters, because of China's secrecy, countries around the world do not yet have the idea of helicopters, and if there is no major war, the secrecy period for helicopters may continue to be extended. ”

Yi Zhengde was a little puzzled and said: "Since the plane has great military value, why didn't my father keep it a secret in the first place?" ”

"Can it be kept secret?" Yi Zhishu said with a smile: "There are so many foreign scientific researchers in your aircraft research institute, how can you keep it secret?" Besides, I didn't expect the research progress of the aircraft to be so fast.

Again, the plane is flying in the sky, there are many people who can see, it is difficult to do complete secrecy, although you are in Lantian, but the people in Xi'an do not know the plane that can fly in the sky now? ”

Yi Zhengde said: "Isn't Xi'an not open to the outside world? Just control the newspaper ....... ”

"Such a novelty will inevitably be mentioned in the private message, can you control the newspaper, can you control the private message?" Yi Zhizhi said: "Although Xi'an is not open to the outside world, after all, it is the largest industrial base in the northwest, and it should not lack the eyes and ears of various countries. ”

After a pause, he continued: "This is only the first aviation base in our country, and once the conditions are ripe, we will prepare to build a second and third aviation base in other more remote and hidden places." ”

The helicopter research institute covers a vast area, with many newly transplanted trees and an elegant environment, and the first thing Yi Zhishu inspected was the helicopter power department, where a huge helicopter engine was placed in the tall workshop, and after the machine was started, the propeller and tail rotor began to rotate rapidly.

The half-moon shape of the researchers surrounding Yi Zhifen showed undisguised enthusiasm in their eyes, not only because Yi Zhizu proposed the idea of a helicopter, but also because Yi Zhizu directly drew a simple sketch of the helicopter, especially the tail rotor of the helicopter.

A small tail rotor is really a wonderful idea, because the role of this tail rotor is too great, which not only solves the problem of helicopter rotation, but also solves the problem of helicopter control yaw and pitch, greatly shortens the research time, and directly makes the helicopter have great practical value.

Yi Zhengde said: "This is the original power of the helicopter, which uses a four-cylinder internal combustion engine with 30 horsepower. After a pause, he continued: "The engine shakes a lot and the control is complicated, and if you use a more powerful engine, the shake will be more intense ......" ”

Not only is the shaking big, but the noise is also loud, and it is easy to know that the helicopters of later generations should use turbine engines, but he doesn't know anything about this thing, and he doesn't know where to start if he wants to mention something.

Shake it, shake it, and then there is no late replacement of the turbine engine, what he needs now is a helicopter with a certain combat capability, he remembers very clearly, during World War II, the engine of the fighter can also reach 1000, 2000 horsepower, but it is a twelve-cylinder.

He stretched out his hand and pressed the signal to turn off the fire, and when it was quiet, he turned around and glanced at the middleman, and said loudly: "Whether it is an airplane or a helicopter, the most important thing is power, if the plane is compared to a person, the engine is the heart of the aircraft!"

To what extent the aircraft can be developed, it is the engine that plays a decisive role! Aircraft Research Institute, the core of the airline is not something else, but the engine!

Now the internal combustion engine is only in its infancy, and there is still a lot of room for improvement in the four-cylinder engine, which can develop five-cylinder, six-cylinder, nine-cylinder, and twelve-cylinder engines, and the horsepower of the engine can also exceed your imagination!

Here, I can clearly tell you that what you are engaged in is the greatest and most promising industry of mankind, full of infinite beauty and possibility, this is an industry and opportunity that can make you go into the history of human civilization, the world and China's aerospace history, and it is also a scientific research project that you can strive for all your life! ”

There was no applause, everyone was shocked by the twelve-cylinder engine he proposed, and everyone knew that this big shopkeeper of Yuanqi would never say anything!

"Remember one sentence, as long as the power is strong, the bricks can also fly into the sky!" Yi Zhizhi said and walked out of the workshop quickly.

A single-engine aircraft with an all-metal shell painted with silver-white paint quietly parked on the airstrip of the airport, compared with the first few planes that were tested in Shanghai, this aircraft has been greatly changed, although it is still a two-layer wing, but it is significantly smaller, and the proportions of the whole aircraft seem to be much more harmonious at first glance.

Yi Zhizu circled the plane a few times, knocking and touching, and finally came to the propeller in the nose, in his eyes, the all-metal shell-winged plane was still rudimentary, but it was exactly the same as the aircraft he remembered before the First World War.

Huang Dianyuan looked incredulous, and asked softly, "Can this guy fly into the sky?" ”

Yi Zhizhi smiled contentedly, "Try it." With that, he pulled him out of the runway.

Tang Chutian, a pilot with extremely rich flight experience, hurriedly stepped forward to turn the propeller, then boarded the plane, and then closed the cabin cover after making a gesture, and after the plane taxied quickly on the runway for a distance, the nose of the plane was raised, and it instantly left the runway and flew into the sky.

Seeing this scene, Huang Dianyuan opened his mouth wide and didn't close it for a long time, looking at the plane that was gradually moving away, Yi Zhizhi asked slowly: "What is the current flight speed?" ”

"About 100 kilometers per hour." Yi Zhengde blurted out: "The height should be around two hundred meters." ”

"It's too slow, and the fuselage is too small." Yi Zhizhi said: "Such an aircraft can also play a role in reconnaissance." After a pause, he continued, "The wind tunnel has been built, right?" Experiments and improvements can be made boldly, for example, a two-story wing can be changed to a one-layer ....... ”

Hearing this, the group of personnel behind him had already begun to take out their notebooks and began to record, "The plane as a whole must be enlarged, the fuselage must be widened and lengthened, and strive to be able to carry heavier weight, we can't let the plane throw grenades from the air, right?"

Airborne bombs, in order to constitute a huge lethality, bombs must often be hundreds of kilograms, and it is impossible to carry only one bomb, right?

In addition, the lethality of heavy machine guns is huge, you can consider equipping the aircraft with heavy machine guns, or small cannons, which are the main weapons of aircraft in air combat, and how much heavy machine guns consume ammunition, you should also know how much you think about it.

Therefore, the load capacity of the aircraft must be considered, and according to the different uses of the aircraft, it should be divided into reconnaissance aircraft, fighters, and bombers.

At the moment, the lack of power can focus the main experience on smaller, maneuverable fighters, but even fighters need to carry at least three or five hundred kilograms of weapons and ammunition. ”

After a pause, he continued: "The fighter will be the main aircraft of the Air Force, and I need to fix the machine gun in the nose position, and the pilot can directly fire the machine gun and drop the bomb." ”

Yi Zhengde was stunned when he listened, "Shooting from the nose of the plane won't hit the propeller?" ”

"How not to hit the propeller, that's what you should think about." Yi Zhizu said slowly: "The power is insufficient, especially for bombers, you can consider adding engines, twin engines, four engines, you can try it, although you make a bold attempt, you don't need to consider the funding at all." ”

After a pause, he continued: "There is another point, which must also be considered, flight speed and altitude, speed is the biggest advantage of the aircraft, as for altitude, it is for safety reasons, you should know the range of rifles and machine guns, if the plane is shot down by rifles and machine guns, it will be a joke, so the altitude must be considered." ”

Yi Zhishu said while watching the plane in the air, Tang Chutian, who has rich flying experience, obviously deliberately showed off, and carried out a series of performances around the airport, sometimes diving, sometimes pulling sharply, sometimes turning left and sometimes turning right, turning as expected, light and flexible, like an eagle soaring in the air.

Recalling the clumsy flight when I first saw the airplane debut in Shanghai, Yi Zhizhi was very satisfied, it seems that in the past few years, they have not been wasted, and it is not easy to make such great progress in just a few years.

Thinking of this, his heart moved, perhaps, he should try to start forming an aviation brigade, and the training of pilots must go ahead, after all, pilots cannot be trained in a short period of time.

With the end of Tang Chutian's performance, a helicopter flew over slowly, and when it flew closer, Yi Zhizhi couldn't help but laugh dumbly, although he had long known that the fuselage of this helicopter was made of wood, but when he saw it with his own eyes, he still had a feeling of wanting to laugh.

The helicopter was designed entirely according to the sketches he made, and the style was not bad, but it was very rough, and Yi Zhengde explained with some embarrassment: "The helicopter is still in the stage of exploration and attempt....... ”

Yi Zhishu nodded, after all, the helicopter is a new thing, even if the helicopter is successfully flew, they are still not sure about the performance and structure of the helicopter, so they use the wooden frame fuselage to facilitate improvement and adjustment anytime and anywhere.

Approaching the helicopter without much performance, he just carried out the operation of moving forward and maneuvering left and right before slowly coming down, Yi Zhicontent said a little strangely: "Can't hover?" ”

"Hover?" Yi Zhengde was stunned, and he didn't understand what it meant at all.

Hovering, that is, hanging in the air and not moving, this is the biggest difference between a helicopter and an airplane, Yi Zhishu did not explain, waved his hand, he is a person who has never even seen a helicopter, but he knows that a helicopter can hover, how to explain this? Anyway, after a long time, they will be able to figure it out on their own.

Circling around the helicopter, he opened the cockpit and observed for a while, without expressing any opinion, he had seen the appearance of the helicopter, but he had never seen what was going on in the cockpit, and he groaned slightly, and then he said: "The helicopter should be equipped with two pilots." ”

Helicopters are different from fighter jets, the average fighter is one pilot, but the helicopter is two pilots, this common sense, he knows.

Yi Zhengde was very surprised and asked, "Why?" ”

"The need to fight." Yi Zhicontent said succinctly: "In addition, it is best to arrange the seats in front and back, shoot in front and drive in the back, low in the front and high in the back, without affecting the line of sight." ”