"This is the rotorcraft you made? How is the performance?"

At the former military sub-district headquarters, on the training ground of the Northern War Zone Command, a delegation led by Xia Zhongyuan, deputy director of the General Staff Operations Department, surrounded several strange-looking aircraft and came close to watch carefully. Some people even reached out to touch the movable paddles on the top to observe the mechanical connection.

However, people who see it are very polite, and they read more and say less. They either smile, nod, or are serious, but no one says anything unpleasant.

With the growth of the base area, a central city, more than a dozen affiliated towns, and emerging military and political forces with a complete military and political system can no longer be regarded as an educated youth. When facing this change in China, the attitude towards the Northern War Zone Department is becoming increasingly modest, and we have begun to evaluate internally whether it is necessary to establish formal relations as a regime.

There are still doubts about this in China.

Guan Fei is currently developing very well and has gradually gained the capital to compete for the Lu, but his territory and strength are still many shortcomings, which are at best comparable to larger ethnic armed forces such as the Wa people and Kachin. This kind of force is definitely not a problem to protect himself, but to say that liberation is set, it is still far from being established.

If you fail in the future, or you are not enterprising, then it will appear out of place to make a statement too early, which will destroy the relationship between the country and the established ones.

Therefore, the country is temporarily inclined to maintain normal economic and trade mutual benefit with him, and to raise the level of exchanges to show respect, and everything else will be the same.

Therefore, this time, the leader of the Northern Theater Command was led by Xia Zhongyuan, deputy director of the General Staff Department. He was a military-level cadre. Although he was not awarded ranks in China, he was roughly equivalent to the major general level of the foreign army in terms of military ranks, and was exactly the same as the senior management such as Guan Fei. He was in line with the principle of reciprocity in China. He not only attached importance to the other party, but also did not suppress him with higher military ranks.

The members of the delegation, except for some technical experts from the Fifth Machinery Department, were all from the General Staff Operations Department, Equipment Department, Intelligence Department, Training Department, and later the General Ordnance Department, and the lowest-level cadres were all from the regiment-level cadres.

With such a high level in the delegation, Guan Fei naturally could not allow an ordinary staff member to receive him, but could only accompany him in person.

He heard Xia Zhongyuan ask with interest and smiled: "Yes, this is our own rotorcraft. The territory is too large, and it becomes difficult to connect and support. In order to solve the problem of quickly mobilizing troops, we temporarily built these rotorcrafts for emergency response.

Is it performance? I can only say it is sloppy.

In terms of advantages, it requires little site requirements and simple operation. As long as you can drive a motorcycle, you can learn it. On-site teaching and practice for a few hours. If you encounter a fault in the air, it will not fall directly, but will have a period of gliding time like a parachute, which can ensure that the personnel land without any harm and have a high safety factor.

The disadvantage is that high or low or low.

It is said that it is like a helicopter, but it cannot take off and land vertically like a helicopter, and it cannot hover. It takes dozens of meters of sliding distance to take off; it is said that it is a fixed-wing aircraft, and its range, speed, and load load are not as good as the fixed-wing aircraft.

The key reason why we make this thing is that it is simple and too simple: You see, this rotorcraft is a metal frame, welded with a few metal pipes, and the technical difficulty is no different from that of a tricycle. The blade on the top is also movable, and it will automatically rotate under the action of the wind when flying in the wind, thereby providing upward lifting force, so that there is no need for a complex and fragile transmission mechanism as needed by the helicopter.

All the power comes from the 150-horsepower engine at the rear, which is just a piston aircraft engine. In terms of technical difficulty, even if the high-altitude supercharger is added, it is not higher than the level in World War II.

In general, this is an upgraded power parachute.”

Listening to his explanation, the members of the delegation who were watching nodded repeatedly, approving his views.

Judging from the technical difficulty, this rotorcraft is really simple. Basically, as long as it can get important components such as aircraft engines, transmission gearboxes, blades, and blade fixing fixtures, a bicycle factory can construct them according to the drawings and manufacture them in large quantities.

But they did not look down on the technical level of the Northern War Zone because of this.

A technical expert had been looking down for a long time. At this time, he heard Guan Fei speak modestly, pointing at the rotorcraft frame and laughing: "It's fine if anything else, you are not ordinary steel pipes. I have been looking at it for a long time. This should be aviation aluminum? I was wondering just now, thinking it was impossible, but after careful inspection for a long time, I finally confirmed that this was indeed high-performance aviation aluminum..., you are really rich!"

His words caused everyone to burst into laughter.

Not only him, but others also saw that this aircraft, which looked quite simple, used many good things.

For example, the frame is made of aviation aluminum, needless to say. The piston engine behind is also made of alloy aviation aluminum, and blades. As for the rotor head connected to the blades, the fixed brackets carry the weight of the entire aircraft, and the vibration and torque formed by the rotation of the blades are all at this point, which can be said to be the most technical place on the aircraft.

It is no exaggeration to say that being able to make a rotorcraft that meets performance standards already has the most basic civil helicopter manufacturing capabilities.

It can be seen that although Guan Fei is kind, he attaches great importance to this aircraft and has put a lot of money on it.

If the entire rotorcraft is calculated just by calculating the material, it will be at least hundreds of thousands!

Of course, Guan Fei and the others were able to smel high-performance alloys themselves, eliminating the depreciation cost of metallurgical furnace maintenance. The original cost of aluminum ingots and alloy ingredients was definitely not so high. But even so, this rotorcraft that is so luxurious that it is made of aviation aluminum will not be less than 200,000!

Guan Fei and others developed not only one rotorcraft, but three, namely two-seater, three-seater and five-seater.

The three-seater type is the one they looked at, while the five-seater type is the elongated version of the three-seater type.

The five-seat model connected two rows of seats behind the pilot, lengthening the fuselage to 2.6 meters. According to Guan Fei's introduction, the five-seat model's payload weight reached 358 kilograms. According to the general body size standard of about 60 kilograms in this era, it can carry five soldiers, and each person can carry 11 kilograms of light weapons and ammunition equipment with him. After filling 70 kilograms of gasoline, it can fly for three to four hours at a speed of 130 kilometers per hour, with a range of 300 to 500 kilometers, and the limit is 3500 meters.

The two-seater model is even more exaggerated than the first two models.

This two-seater rotor aircraft adopts a front-and-rear series layout, with a fuselage width of only 55 cm, which is much narrower than the other two. This layout is the same as the idea of ​​armed helicopters developed in Europe and the United States, and reduces the area of ​​ammunition by compressing the fuselage. And at the bottom of the rotor aircraft, a layer of two-point three-mm, like the armed helicopter, is equipped with a bulletproof plate of the same material as the bulletproof insertion plate.

There is a certain arc directly below the bulletproof plate. When the bullets shot from below hit the bulletproof plate, it will bounce away due to this arc, thereby reducing damage. The bulletproof plate continues to extend upwards about twenty centimeters to both sides, forming skirts on both sides to protect the crew on the plane from being injured by stray bullets.

The entire bulletproof board is about 1.5 meters long, and the overturned protective skirt is about 75 cm wide.

After getting the design drawings from Guan Fei in China, it also manufactured a small production line to equip elite troops. Everyone knows the relevant data.

A single piece of breastplate that is twenty-five cm wide and thirty cm long weighs 1.45 kg.

Based on this weight, and then visually measuring the armor size at the bottom of the rotor, you can quickly figure out that the weight of this layer of bulletproof plate is estimated to be around 22 or 3 kilograms.

It was equivalent to Guan Fei spared no effort and the weight saved by using aviation aluminum was eaten back by this layer of bulletproof board.

And since the bulletproof plate is cast in an overall manner, conventionally speaking, the larger the size of the same material, the more the cost is, the more exponential it will double. Therefore, according to their judgment, the price of this two-seater reinforced armored rotorcraft is at least more than one million yuan. How much is it expensive? This is the secret of the Northern War Zone, and only the relevant flying knows.

Their idea is not wrong with common sense.

It’s a pity that Guan Fei himself does not conform to common sense. After his design and reconstruction, the larger the bulletproof board, the more the production cost is reduced.

The reason is nothing. As long as the yield rate is controlled properly for the same raw materials and production processes, of course, the larger the size, the lower the cost, which is the same as silicon crystals. As long as the manufacturing process problem is solved, six-inch crystals are cheaper than three-inches, and eight-inches are cheaper than six-inches.

Anyway, it was for personal use, Guan Fei directly took out the manufacturing process of large-sized bulletproof boards. Although the total area of ​​this integrated bulletproof board produced by the improved process is equivalent to fifteen small-sized breastplates, its cost is only equivalent to six ordinary plug-ins, and the cost is reduced by 60%!

The same is true for aviation aluminum and other high-performance alloy materials.

The same formula was either not able to produce or smelter in China in the past. The cost was very high but the performance was far worse than that of foreign countries.

However, after learning the complete set of drawings of the vacuum electroslag remelting furnace from Guan Fei, it not only can be smelted on a large scale, but the cost has also been slightly higher than that of ordinary alloy materials. The performance is even more comparable to similar foreign materials, and the local parameters are better than those of the other party. As long as the raw materials are supplied, it can be collected from the ground one by one like a cabbage to supply the market to meet the needs of national production and national defense technology.

If it weren't for Guan Fei, who had mastered the technology that had been ahead of hundreds of years, who would be qualified to play like this?

If others want to learn, they are not completely unable to imitate them. As long as they can bear higher production costs and usage prices than normal, there will be no problem.

Just like this two-seater reinforced armored rotorcraft, if it is a European and American imitation, the material cost and manufacturing cost are estimated to cost 700,000 to 800,000 US dollars each, which is equivalent to one percent of the Apache armed helicopter. The weight of the replacement of ordinary steel plates has increased greatly, reducing the payload, which is a waste of money.

If the Soviet Union followed suit, I would not say how much the cost was, but I would definitely become stupid and stupid, and the load of the aircraft would be greatly reduced, which would be of no value.

But what is actually?

The cost of this two-seater reinforced bulletproof rotorcraft is only 210,300 yuan - this is still an experimental type that does not have a manufacturing production line and is made of general processing equipment. It also includes the salary bonus to workers and the purchase price after 15% of the factory's profit!

If a special production line is manufactured after formalization, the number of special production lines will be purchased to more than 600. If large-scale manufacturing is spread out, the cost of each one will be reduced to about 150,000.

Science and technology are productivity, and scientific and technological progress brings unequal competitive advantages. That's it.

With the assistance of Guan Fei Chao Times Technology, a rotorcraft that was not valued was born in this era. We should not take a path and make a name for ourselves.
Chapter completed!