readx;??“ This is the gyrocopter you made? What about performance? ”

At the training ground of the former military sub-division headquarters and now the Northern Theater Command, a delegation led by Xia Zhongyuan, deputy director of the Operations Department of the General Staff Department, surrounded several strange-looking aircraft and gathered close to them to take a closer look. Pen? Interesting? Pavilion wWw. ｂiquge。 Some people also reach for the movable paddle on top to observe the mechanical connections.

However, the people who watch are very polite, and they see more and talk less. They smiled, nodded, or were serious, but none of them said anything unpleasant.

With the growth of the base areas, the formation of a central city, more than a dozen subordinate towns, and a complete military and political system of the emerging military and political forces can no longer be regarded as a group of educated youth. Facing up to this change, the country has become increasingly humble towards the Northern Theater Command, and has begun to evaluate internally whether it needs to establish a formal relationship with it as a leading regime.

There are still doubts about this in China.

Guan Fei's current development momentum is very good, and it gradually has the capital to compete for deer, but its territory and strength still have a lot of shortcomings, and at best it is comparable to the Wa people, Kachin and other larger ethnic armed forces. This bit of strength is certainly fine for self-preservation, but to say that liberation is completely settled, it is still far from it.

If we fail in the future or do not want to forge ahead, then it will be very inappropriate to express our stance too early, and it will destroy the relationship between the country and the unstable.

Therefore, for the time being, the country is still inclined to maintain normal economic and trade mutual benefit with him, raise the level of exchanges to show respect, and everything else is business as usual.

Therefore, Xia Zhongyuan, deputy director of the First Department of the General Staff, served as the leader of the team that led the delegation to the Northern Theater Command this time. He is a regular army-level cadre, although there is no title in China, but in terms of military rank, it is roughly equivalent to the level of major general in foreign armies, which is exactly the same as Guan Fei and other high-level cadres, which is in line with the principle of reciprocal exchanges in China, and not only attaches importance to the other party, but also does not pressure each other with higher military ranks.

The members of the delegation, with the exception of some technical experts from the Fifth Aircraft Department, were all cadres at the full division and deputy division level selected from the Operations Department, Equipment Department, Intelligence Department, and Training Department of the General Staff Department, and the General Ordnance Department.

With such a high level of delegation, Guan Fei naturally couldn't let an ordinary staff member receive him, so he could only accompany him personally.

He heard Xia Zhongyuan ask with great interest, and said with a smile: "Yes, this is our self-made gyroplane." The territory is bigger, and it becomes difficult to get back and forth. In order to solve the problem of rapid troop mobilization, we temporarily built these rotorcraft for emergency purposes.

Performance, can only be said so-so.

In terms of advantages, it has small requirements for the venue, simple operation, as long as you can drive a motorcycle, you can learn, on-site teaching, practice for a few hours. If it encounters a malfunction in the air, it will not fall directly, but has a gliding time like a parachute, which can ensure that the personnel land unharmed and have a high safety factor.

The disadvantage is that the high is not low.

Let's say it's like a helicopter, but it can't take off and land vertically like a helicopter, can't hover, and it takes dozens of meters to take off; Let's say that it is a fixed-wing aircraft, and the range, speed, and load are not as good as fixed-wing.

The reason why we made this thing was that it was simple, too simple: you see, this gyroplane was just a metal frame, welded with a few metal pipes, and the technical difficulty was no different from that of a tricycle. The top propeller is also movable, and when flying against the wind, it automatically rotates under the force of the wind, thus providing upward lift, so that there is no need for the complex and fragile transmission mechanism of a helicopter.

All the power comes from the 150-horsepower engine at the tail, which is nothing more than a piston aero engine. In terms of technical difficulty, even if a high-altitude pressurization device is added, it is not higher than the level of World War II.

Overall, this is an upgraded paramotor. ”

Listening to his explanation, all the onlookers nodded their heads in agreement.

From the point of view of technical difficulty, this rotorcraft is really simple, basically, as long as you can get the aero engine, transmission gearbox, propellers, propeller fixing fixtures, these important components, a bicycle factory can be constructed according to the drawings, mass manufacturing.

But they also did not look down on the technical level of the Northern Theater of Operations because of this.

A technical expert had been looking down for a long time, and at this time, he heard Guan Fei speak modestly, pointed to the rotorcraft frame and smiled: "It's nothing else, you are not an ordinary steel pipe." I've been looking at it for a long time, this should be aviation aluminum, right? Just now I was still wondering, thinking it was impossible, but after careful inspection for a long time, I finally confirmed that this is indeed a high-performance aviation aluminum ......, you are really rich! ”

His words drew a burst of laughter.

Not only him, but everyone else could also see that there were many good things used in this rather rudimentary-looking flying machine.

For example, the frame is made of aerospace aluminum, which goes without saying. The piston engine in the back is also made of alloy aviation aluminum, as well as the propellers. As for the rotor head and fixed bracket connecting the propellers, they carry the weight of the entire aircraft, and the vibration and torque caused by the rotation of the propellers are all in this point, which can be said to be the most technical place on the aircraft.

It is no exaggeration to say that to be able to produce a geogyroplane that meets the performance standards already has the most basic civil helicopter manufacturing capacity.

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

If the entire rotorcraft is counted only in terms of materials, it is at least no less than hundreds of thousands!

Of course, Guan Fei and they can smelt high-performance alloys by themselves, excluding the cost of metallurgical furnace maintenance and depreciation, and the original cost of aluminum ingots and alloy ingredients is definitely not so high. But even so, this rotorcraft, which is so extravagant that it is all made of aviation aluminum, will cost no less than 200,000!

Guan Fei and the rotorcraft they developed are not only one, but a total of three, namely two-seater, three-seater and five-seater.

The three-seater model is the one they look at, and the five-seater model is an elongated version of the three-seater type.

The five-seater model has two rows of seats in series behind the pilot, stretching the fuselage to two meters six. According to Guan Fei's introduction, the payload weight of the five-seater model reached 358 kilograms. At this time, the body size standard of about 60 kilograms was common, and it could carry five soldiers, and each person could carry 11 kilograms of light weapons and ammunition. After filling 70 kilograms of gasoline, it can continue to fly at a speed of 130 kilometers per hour for three to four hours, with a range of 300 to 500 kilometers, and the ceiling is 3,500 meters.

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

This two-seater gyroplane has a tandem front and rear layout, and the fuselage width is only 55 centimeters, 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, which is to reduce the bomb area through the compressor body. And at the bottom of the rotorcraft, a layer of 2.3 mm bulletproof plates of the same material as the bulletproof insert plate is also installed like the gunship.

The bullet plate has a certain arc directly underneath, and when a bullet shot from below hits the bullet plate, it will bounce off because of this arc, thus reducing the damage. The bulletproof plates continued to extend upwards about 20 centimeters on both sides, forming skirts on both sides to protect the crew members of the aircraft from being injured by stray bullets.

The entire bulletproof plate is about 1.5 meters long, and with the upturned protective skirt, it is about 75 centimeters wide.

After getting the design drawings of this bulletproof plate from Guan Fei in China, a small production line was also manufactured to equip elite troops, and the relevant data are well known to everyone.

A single cuirass 25 centimeters wide and 30 centimeters long weighs 1.45 kilograms.

From this weight, and then visually measuring the size of the bottom armor of the rotorcraft, everyone can quickly calculate that the weight of this layer of bulletproof plates is estimated to be around 22 or 3 kilograms.

It is equivalent to Guan Fei sparing no effort to save the weight of aviation aluminum, and this layer of bulletproof plate has been eaten back.

And because the bulletproof plate is cast as a whole, conventionally speaking, the larger the size of the same material, the cost is doubled exponentially. Therefore, in their judgment, the price of this two-seater reinforced armored rotorcraft is more than one million yuan, and how expensive it is, this is the secret of the Northern Theater, and it will only be known if it is flying.

Their thinking is not wrong at all in terms of common sense.

It's a pity that Guan Fei itself does not conform to the existence of common sense, and the production line that has been rebuilt by his design is precisely the production of larger bulletproof plates, the more the production cost will be reduced.

For the same reason, the same raw materials, production process, as long as the yield rate is properly controlled, of course, the larger the size, the lower the cost, just like silicon wafers, as long as the manufacturing process problem is solved, six-inch wafers are cheaper than three-inch, and eight-inch is cheaper than six-inch.

Anyway, for his own use, Guan Fei directly came up with the manufacturing process of large-size bulletproof plates. Although the total area of this integral bulletproof plate produced by the improved process is equivalent to fifteen small-sized breastplates, its cost is only equivalent to six ordinary insert plates, and the cost is reduced by 60 percent!

The same is true for aerospace aluminum and other high-performance alloys.

In the past, the same formula was either not produced in China, or it could only be smelted in small quantities, and the cost was very high and the performance was far inferior to that of foreign countries.

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

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

If other people want to learn, it is not completely impossible to imitate, as long as they can afford to produce and use the price that is even higher than normal, then there is no problem.

Just like this two-seater reinforced armored rotorcraft, if it is imitated by Europe and the United States, the cost of materials and manufacturing costs is estimated to cost 7.8 million US dollars each, which is equivalent to one percent of the Apache helicopter gunship. The weight of the ordinary steel plate bar is greatly increased, and the payload is reduced, which can be called chicken ribs.

If the Soviet Union followed suit, I dare not say how much it would cost, but it would definitely become stupid and stupid, and the load of the aircraft would be greatly reduced, which would also be worthless.

But how?

The cost of this two-seater, bulletproof rotorcraft is only 210,300 yuan - this is still an experimental model without a manufacturing line and built with universal processing equipment. It also includes wages and bonuses for workers, and the purchase price after 15% of the factory's profits!

If a special production line is manufactured after the formal finalization, the number of purchases reaches more than 600 aircraft, and the large-scale manufacturing is evenly distributed, the cost of each aircraft will be reduced to about 150,000 yuan.

Science and technology are productive forces, and scientific and technological progress brings unequal competitive advantages.

With the assistance of Guan Fei Chao Times Technology, a rotorcraft that had not been taken seriously was born in this era, and it was necessary to find a new way to emerge.