Because the rubber required for the cylinder of the steam engine was solved, the design bureau decided to draw up a blueprint for the manufacture of the steam engine. The subtlety of this drawing is not the steam engine at the moment, but the perfect combination of a steam-powered gasoline engine that spins like crazy and "unloads"!

In the past 20 years since the establishment of the Soviet Union, the whole country has been promoting 10 years of compulsory education. The Soviet education system is also unique in the world, that is, the children who enter the school will learn a lot of knowledge in ten years, and when the children graduate from the tenth grade, it is time to go to university!

Poor Natasha, after her last year, she will have the possibility of going to university. However, children in remote areas like her are not very likely to go to college.

The battlefield gave her a unique possibility, and it was almost certain that this ninth-grader, who had received great honors, would be sent to Moscow University or even the Frunze Military Academy after the war.

The most important thing for such children is the knowledge in their heads, and in the seventh grade, children will learn physics knowledge in depth, and they must understand the relationship between magnetism and electricity. Most of the workers of the arsenal have completed compulsory education, and this is a huge advantage of the guerrilla republic!

Popov explained the current work of the workers: "Once all the parts of the steam engine are installed, it can be connected to the modified generator!" ”

Yang Mingzhi personally witnessed this significant moment, and soon, the docking work of the two machines really began.

The steam engine, with its parts installed, was placed on a large base, which was held in place by a large number of bolts. Next, two workers hold an exposed electric motor and place it on the base.

All this, Yang Mingzhi was amazed, he asked: "I ignored the base manufacturing in the design drawing, you added the base, how to ensure that the machine is stably fixed on the base, just rely on these bolts?" ”

Let's talk about this base, this is Rygushkov to give himself another credit: "Of course! Comrade Commander, our bolts are very strong, and the base is also of a special material! You can confidently see that the reflection of the base is different! ”

The light in the room was a little dim, and Yang Mingzhi simply took out half of the glasses he didn't wear from his pocket. He took a closer look, and the reflection was indeed unusual. What exactly is this? The color is somewhat like aluminum!

Seeing the commander's surprised expression, Rigushkov came to his senses: "Our base is not carburized steel, and our blast furnace can already make some higher alloys. Of course, we also need unique raw materials to produce, and this base you are looking at, is an aluminum alloy! ”

"Oops! Is it really aluminum?! ”

"Aluminum alloy indeed!"

"Why is the current aluminum a hundred times more precious than iron, and where does the aluminum used in the arsenal come from?!"

"Airplane!"

Rygushkov's answer is just one word, and that's enough! Yang Mingzhi slapped his thigh fiercely, and he suddenly thought that the falling TB3 was full of treasures! The aluminium in these alloys comes from the skin of the TB3 bomber, which is eventually melted in the blast furnace and other metals added to create a strong, lightweight, shiny aluminium alloy!

Soviet aviation materials did not lag behind, and as early as the beginning of the creation of the USSR in the twenties, its domestic "Kolytyugen aluminum" was successfully produced. It is the wide application of electrolytic aluminum technology, which solves the problem of mass production of aluminum. With the steady supply of electricity from the Soviet hydroelectric power station on the Dnieper River downstream of Kiev, the Soviet Union's electrolytic aluminum industry was also on track.

By the thirties, Soviet transport aircraft and bombers were largely made of aluminum alloy and steel, such as the TB3 bomber, whose wings were covered with aluminum sheets.

When the war broke out, the Germans occupied the entire Dnieper River basin, which dealt a fatal blow to the Soviet army's aluminum industry and even the aviation materials industry!

Sixty percent of the Soviet Union's aviation aluminum needs to be provided by Ukraine's Dnepropetrovsk and Volkhov aluminum plants, and electricity needs to be provided by the Dnepr hydropower station. However, the factories in the Urals can provide only 5% of the national aluminum alloy.

This was the state of affairs at the very beginning of the war.

When the war broke out, due to the rapid advance of the German army, it was difficult to relocate a large number of heavy equipment in Soviet factories, and they blew up some factories, and many more were occupied by the Germans. Even the Dnepr hydroelectric power station! In order for the German army to achieve the goal of feeding the war with war, they used the bauxite discovered by the Soviet Union and the remaining electrolytic aluminum factories to produce aluminum urgently needed by the German army on a large scale.

The Soviet army lost these factories in Ukraine, and the losses were not insignificant. However, it's the people who make it all. A large number of technicians made a strategic retreat, and factories that had not yet been occupied by the Germans were also moved during the Soviet counteroffensive in the first half of 1942.

New factories were built in the Ural region and in Siberia, and cities along the Siberian Railway, such as Irkutsk, Tolsk, Novosibirsk, etc., developed rapidly. Soviet heavy industry was able to recover rapidly in the rear, and at the same time, large-scale U.S. strategic assistance under the Lend-Lease Act was in full swing in early 1943.

Rigushkov didn't just make an aluminum alloy base, Yang Mingzhi noticed that some metal parts were also made of aluminum alloy.

Yang Mingzhi, who knows the metal industry very well, has no intention of criticizing him for this. Because, if he could think of using the aluminum alloy waste of the aircraft, in the design drawings, many parts would simply be made of aluminum alloy! This is a comfort for him as a commander, and since Riguskov decisively uses new materials, he doesn't need to say much.

Yang Mingzhi wanted to see the further work of the workers, only to see that the steam engine and the generator were quickly docked, and after a few gears were docked, the machine could be operated.

The generator, which had been dismantled from the internal combustion engine, had an output voltage of 220 volts of direct current, which could supply most of the electrical appliances in the Soviet Union. The voltage can be guaranteed to 220V, which is completely due to the stable speed of the rotor. The structure of the generator was thoroughly studied by the people of the design bureau, so after changing the power to a steam engine, it was theoretically possible to stabilize the speed of the rotor by resting a few gears, and finally ensure the stability of electricity.

Of course, when the radar equipment began to work, the power of that magnetron was enormous! After the modification, the steam generator also needs to convert direct current into alternating current and use a transformer to boost the voltage again to make the magnetron work stably.

In this day and age, these devices are nothing more than stupid stuff. Even if Yang Mingzhi was here, he would not be able to use the materials at hand to further simplify the equipment, and even when all the equipment was completed, its overall volume would be even greater than the existing one in the Soviet Union!

Maybe it's because Yang Mingzhi is watching here, the workers are doing things very quickly, and after the generator connection is completed, Rygushkov said: "Theoretically, this machine already has the ability to supply electricity, and if the commander is interested, we can test it now." ”

"Let's experiment!"

The future of radar began with this generator, and Yang Mingzhi gave the order to test it.

Because this is a steam engine, the kettle has to boil water first, which is a relatively slow process, and Yang Mingzhi always stands and waits.

When the pressure performance reached the rated value, the workers opened the valve.

It is a small, well-made steam engine, but its principle is no different from that of the 18th century, and there is even a sense of history in the whole. Unlike the steam engines of history, the cylinders can carry much higher atmospheric pressure, so the theoretical output of the steam engine is up to an astonishing figure of 500 horsepower. The cylinder drives the disc to rotate, and after the cooperation of several gears, it finally turns into the crazy rotation of the generator rotor, desperately cutting the magnetic inductance line, and the electricity is generated.

When the generator rotated wildly and brought a unique peak, the workers involved in the manufacture all let out a cry of victory.

A worker in oil-stained bib pants with a voltmeter measured and got satisfactory results.

The voltage is already close to 220 volts, which is 2 volts less than the plan on the drawings, and there is no major problem overall.

"A good start is half the battle! Next, you're going to build the inverter. ”

"The inverter is already being made." Rygushkov said with great pride, "With the commander's drawings, we are very efficient. Around June 15, the radar will be built. ”

This day is a casual remark of this person, standing in Yang Mingzhi's position, how can he not be shocked!

"In other words, you will complete all the equipment in three days at the earliest?"

"Yes!"

"Very well, I think it's time for me to prepare a professional radar soldier!"