The next day, the Eagle test flight base.

With the roar of the engines, a huge Y-20 transport plane slowly landed on the runway, taxied, and finally stopped in the spacious hangar.

Li Xiangnan and Shen Ye, who were waiting in the hangar, couldn't help but have complicated expressions when they thought of their next test flight mission.

On the one hand, teammates are testing the top fighters, but they are being pitted to test the rotorcraft, and there must be disappointment.

But on the other hand, the term 'tiltrotor' is also fresh and exciting for them.

Fresh because there are no such aircraft in the country at the moment,

The stimulus is due to the prestige of the osprey 'widow maker'......

Just as the two of them were thinking, the front hatch of the Yun 20 slowly opened, and after Chen Hai poked his head out and looked outside, he motioned for Kang Chi to come down first.

As soon as Kang Chi came out and looked outside, he immediately saw an acquaintance in the most conspicuous position of the crowd: "Mr. Cai? Why are you here too? ”

"Hearing what you said on the phone, I'm also curious, I happen to be nearby these days, so I stopped by to take a look."

Cai Yaobin stepped forward enthusiastically and shook hands with Kang Chi: "Welcome to Mr. Kang to the Huaguo Air Force Eagle Test Flight Base!" ”

On this occasion, Cai Yaobin's title to Kangchi has also changed from Dr. Kang to Mr. Kang.

However, in the army, the general word with the back is different from the meaning of ordinary bosses, and it is usually the abbreviation of leaders, chief engineers, and chief designers.

"Salute!"

"Welcome Mr. Kang!"

The test pilots and logistics personnel present immediately gave Kang Chi a formal military salute after hearing the captain's order, and Kang Chi, who was not used to this kind of occasion, couldn't help but feel a little pressure......

He hurriedly returned the salute, then nodded and said, "Thank you, I'm going to trouble you in the next period of time." ”

When the soldiers heard this, they immediately shouted in unison: "Guarantee to complete the mission!" ”

Kangchi nodded, this well-trained feeling is indeed very different from the employees of his own company.

After a brief face-to-face, Cai Yaobin personally introduced the two test pilots to Kang Chi: "This is Li Xiangnan, this is his partner Shen Ye, both of whom are the ace test pilots of this test flight team, and then they will cooperate with Mr. Kang to complete the test task of 'Yinhe'." ”

"Mr. Kang is good!" Li Xiangnan and Shen Ye hurriedly puffed up their chests and said hello to Kang Chi.

Looking at these two spiritual guys of the same age as himself, Kang Chi also nodded to them with satisfaction.

Later, Deng Henghua also took the initiative to introduce under Cai Yaobin's signal: "I am the captain of the test flight team, and Mr. Kang can tell me at any time if he needs anything at the Soaring Eagle test flight base." ”

"Hello Captain Deng."

After a brief acquaintance between the two sides, the next step was to unload the plane.

Including Cai Yaobin, what everyone is looking forward to the most in this welcome ceremony is probably what the tiltrotor made by Kangchi looks like.

In the eyes of everyone, the rear hatch of the Y-20 was slowly lowered, and the 'Silver Crane' loaded in the engine room finally appeared in front of everyone.

It's beautiful!

The moment they saw the shape of the silver crane, everyone immediately felt a little surprised.

Although the wings and propellers are folded down and backward like resting birds, and it is impossible to see what it really looks like when it spreads its wings, just looking at the smooth silver-gray fuselage feels like a work of art, full of high-tech beauty.

This is the plane we are going to test fly?

Seeing this silver crane, which is completely different from traditional helicopters in terms of shape and texture, Li Xiangnan's heart was immediately full of curiosity and expectation.

To be honest, most of Huaguo's current helicopters and fixed-wing aircraft are a bit 'old-fashioned', and neither the painting nor the design is as technological and aesthetic as the fighter aircraft.

And the technological beauty of this silver crane is very different from the domineering and sharp J20, it belongs to the type that makes people feel very light and elegant.

The name Yinhe is indeed very apt.

The reason why Kangchi designed the Yinhe like this is, on the one hand, it is in line with aerodynamics, and on the other hand, because the Yinhe made by Kangchi is positioned as an ordinary driving and exploring tiltrotor technology, so it is relatively conservative in terms of endurance and load, and there is no redundant functional module design.

Once the initial testing here has determined that the general direction is okay, Kangchi intends to ship it back to upgrade it, and then properly 'castrate' it for the time being out of mass production, or do not want to spend the technology of mastering point analysis.

At that time, if there is a need for other things, it is completely possible to design a derivative style based on Yinzuru's technology.

If you want more carrying capacity and range, you can further enlarge the fuselage, install more batteries and motors, and if you want more speed and flexibility, you can reduce the fuselage.

This kind of improvement should not be too difficult for Kangchi.

After a short period of appreciation, the logistics staff immediately stepped forward and began to untie the fixed rope, and then slowly moved it down with the operating tools, and then Kangchi took the initiative to step forward and began to explain and demonstrate the folding operation of the silver crane to the logistics staff.

The whole folding and stretching process is actually very simple and intelligent, except for the propeller which also needs human assistance, and the rest is just to execute the command in the cab.

Seeing the silver crane with the wings completely deployed, Cai Yaobin couldn't help but exclaim to Kang Chi who came down from the cockpit: "It is worthy of Mr. Kang, give you a straight 20 drawing, you really built a tiltrotor ......"

And what's even more exaggerated is that he only took a little more than a month!

Hearing Cai Yaobin's praise, Kang Chi just smiled modestly: "I don't know if I can fly." ”

"Mr. Kang is out, there must be no problem." After Cai Yaobin praised it, he added, "It's okay if you can't fly, isn't there anything wrong with testing the plane?" Others may not even be able to build a model in a month, not to mention that you are still a real guy. ”

The latter sentence is purely for Kangchi and himself to find a step in advance.

After the plane was placed, it was almost noon, so after everyone disbanded, they went to the canteen for lunch together, and then the logistics staff of the base arranged a room for Kangchi, and Cai Yaobin took a plane to an equipment manufacturing base in the northeast because he still had something to do in the afternoon.

However, before leaving, he also emphasized that tomorrow's official test flight, he will rush back to visit, Kang Chi persuaded him not to toss so much, but Cai Yaobin didn't listen to it at all, just simply perfunctory a few words and left......

After the lunch break, Kangchi returned to the hangar and began to explain the operation of this electric tiltrotor to Li Xiangnan and others.

After more than two hours of explanation and cabin simulation, everyone also began to have a preliminary understanding of this silver crane.

"How does it work...... It's too easy, right? ”

After the tutorial, Li Xiangnan couldn't help muttering: "How do you feel like a toy airplane......"

"Isn't it easy to operate?"

Kangchi immediately explained with a smile: "Playing games is the four keys of QWER, and professional gamers can't show it off." ”

"What's more, the current positioning of this Yinhe is a passenger version, as well as a verification machine for tiltrotor technology, simple and stable is the most important, and the things that show operation will be talked about later."

After Li Xiangnan heard this, he felt that it was also the same truth.

Many accidents in the Osprey developed by country M are actually caused by pilot error, and this silver crane is so simple to operate in the helicopter state that it can be said that there is no room for the pilot to make mistakes......

If something really happens, it must be a design problem with the aircraft itself.

And then again,

Test flight of this aircraft, it seems that you don't need an ace pilot at all, right?

Even after seeing the amazing shape of the silver crane, Li Xiangnan still regretted a little bit about taking over the test flight mission.

But since it's all connected, even if it's reluctant, it has to be done.

So after completing the training, the two test pilots began to work out the next test tasks together with Kangchi.

Kangchi is more familiar with the aircraft he built, but when it comes to testing the performance of the aircraft, Li Xiangnan is more professional, and many tests that Kangchi did not expect before, they are very actively proposed.

Early the next morning, after breakfast, Kangchi came to the hangar where Yinhe was parked, and at this time, Li Xiangnan and others had already conducted a static inspection of Yinhe before testing.

After the static test, the two test pilots taxied the aircraft to the test site, where the sky was clear and the mountains in the distance were embroidered with white clouds in Phnom edge, making the weather perfect for the initial test.

Due to the particularity of this aircraft and the fact that the morning test is almost a small visual test, Kangchi only communicated the test task with the tower in advance, and then came to the test site in person to observe the test.

And Cai Yaobin also arrived as promised, and sat at the test site with Kang Chi, with a few close-up monitors in front of the two, and those who didn't know might think that this was the director filming......

A little farther away, several fire engines and ambulances are also on standby.

The first test is to start the motor in situ, observe the rotation of the motor and the rotor, and then move the flaps to perform several attitude changes from helicopter to fixed wing.

The whole process was relatively easy and not dangerous, and it only took twenty minutes to complete.

"The test before take-off is completed, and we are ready to carry out low-altitude take-off and landing and hovering stability tests."

"Roger!"

As the speed of the motor began to rise, gusts of wind began to blow on the scene, and the hum of the propeller and the friction of the air became louder and louder.

However, compared to traditional helicopters, the sound of electric helicopters is noticeably quieter by several grades, and in the soundproofed cockpit, the two test pilots even feel that the noise is even lower than that of driving.

It doesn't feel like you're flying an airplane......

But in such a quiet situation, the plane really flew slowly, and the strong sense of unreality made them even have the illusion that they were not wearing headphones in a simulated flight.

And in addition to being quiet, this Yinhe is also very smooth, without the vibration of a turboshaft engine.

Seeing that this beautiful big guy really flew and flew so smoothly, Cai Yaobin couldn't help but breathe a sigh of relief.

No matter how good the plane was, at least it didn't hit him in the face, or rather, it didn't hit Kangchi in the face.

Low-altitude take-off and landing, hovering stability, in-situ turning and U-turning, small forward, backward, and left, high-power rapid take-off, and take-off and landing with a maximum load of 4 tons......

Throughout the morning, everyone was conducting some simple tests on Yinhe, and Yinhe also gave Kangchi a lot of face, and the overall performance was quite stable.

Especially in the high-power fast take-off test, when Li Xiangnan pushed the electric door to the maximum, the whole plane was like a rocket, and it flew to a height of 50 meters in one fell swoop.

This kind of light and agile scene really shocked everyone.

They had never seen a manned helicopter that could move as fast and dexterous as a small electric model airplane.

The point is that its flight attitude is still very stable, and everything looks so calm and elegant......

After the morning test, Cai Yaobin couldn't help but praise Kangchi: "Judging from Yinhe's performance in the morning, even if it is just a helicopter, it feels a little amazing!" ”

"It's electric, after all." Kangchi explained with a smile,

"The biggest feature of electric is that there are relatively few mechanical structures, fast response, and the flight control system can automatically adjust the power of each motor in real time at high frequency."

"If it is a fuel engine with a traditional mechanical structure, the system issues so many complex and subtle adjustment instructions, which is not only difficult for the aircraft to execute and has high latency, but also prone to failure, so in terms of response speed, the two are actually not comparable."

Cai Yaobin nodded: "That can only be achieved with a strong flight control system, motor and battery support...... If this Yinhe can successfully complete the test, I think it is likely to lead to a revolution and replacement of helicopters! ”

Cai Yaobin's assertion is not impossible.

After all, electric helicopters are much cheaper than traditional helicopters, both in terms of cost and cost of use.

The price of a ton of aviation kerosene is about 4500-7500, and it takes 20 tons of aviation kerosene to fill the fuel tank, and the cost of one flight is almost more than 10,000 yuan.

Yinhe, on the other hand, only needs 3,000 kilowatt-hours of electricity, and the cost is only a few hundred yuan.

Coupled with the simplicity of the electric structure, its later maintenance cost and difficulty are much lower than that of a fuel helicopter with a large number of mechanical structures.

If the aircraft's battery swapping technology can also keep up, the battery swap time is likely to be shorter than the refueling time, and in some emergency situations, the aircraft can also be more frequent.

In this case, once the performance and stability of electric helicopters can be similar to those of traditional helicopters, it is almost inevitable to replace them.

It can only be said that the lithium battery with 1200wh/kg energy density is really too black technology, and with its application and promotion in high-tech fields such as the military, more and more products and equipment will definitely be eliminated.

In the afternoon, they conducted a performance test on Yinhe at the maximum flight altitude, speed, acceleration and other limits of the helicopter, and all the test results were the same as Kangchi expected.

The next day, the main event finally began.

What will be tested this morning will be the gliding take-off and landing of the silver crane in the fixed-wing state, and the most important thing for everyone, the change of flight attitude in the air!

(End of chapter)