Technological power starts with upgrading lenses.

Chapter 283 The new Kunpeng takes off!

The taxiing test is regarded as the inspection work before the official test flight. By testing the aircraft at different speeds on the runway, the various performances of the aircraft can be roughly analyzed, especially the shortest takeoff distance.

A total of three rounds of testing were conducted. In the last round of testing, when the two engines were fully turned on and a full 100 tons of thrust was released, the entire transport aircraft felt like a small fighter jet and rushed past quickly.

After only three hundred meters, Wu Shifeng and Sheng Hui clearly felt that the plane's lift had reached a certain critical point and began to tilt its head upwards, so they quickly reduced the engine output, preventing the plane from actually taking off.

Seeing the data fed back from the test, Dong Jun couldn't help but exclaimed: "Such a large transport aircraft can actually take off at a distance of three hundred meters... The thrust of one hundred tons is really terrifying!"

You must know that the previous Y-154 with an empty weight of 20 tons had a shortest takeoff distance of more than meters.

Now that the empty weight has been reduced by 40 tons and the total thrust has been increased by more than three times, this distance has been reduced by half!
Chi Jinliang couldn't help but exclaimed: "If there is a mini airport within this distance, it can take off and land!"

The reduction in take-off and landing distances means that there will be many airports suitable for transporting 20S in the future, especially because many islands and reefs in the South China Sea are too small. Even if they are reclaimed from the sea, only small airports can be built, and large aircraft have not been able to take off and land. .

But with the emergence of Yun-20S, the strategic status and role of these islands and reefs will be rapidly improved!
"Call Kunpeng, the runway taxiing test is over, please taxi into the hangar."

"The ground crew will check the runway again. A special plane will land in half an hour."

The military paid great attention to the test flight of the Y-20S. Three weight leaders came at once, and XAC’s parent company, the Aviation Industry Corporation of China, was no exception.

Because the overall shape of the Yun-20S is actually similar to the previous Yun-20, its most obvious difference is that it has two engines instead of four, and the size of the landing gear has become larger.

目前的运20S在材料和发动机的减重增强度后，空重直接从154吨降到了114吨，推重比更是从0.415暴增到0.877！

When the plane takes off, they can directly feel the difference.

The Yun 20S actually has a major change that you can’t tell just by looking at the appearance. That is, the carbon fiber material of the entire fuselage has been replaced by T1200, which greatly enhances the overall strength of the fuselage. Otherwise, the previous fuselage material would not be visible at all. An engine that cannot withstand such a large thrust.

A night of silence,
Early the next morning, after having breakfast, Kang Chi and Cai Yaobin arrived at the test flight site. Dong Jun and others had already begun making preparations.

Other than that, there's nothing special about it at all.

Anyway, no matter how much you talk about technology, they may not understand it.

So under the leadership of Dong Jun, everyone quickly saw the protagonist of this test flight.

Many people were actually a little disappointed when they saw the Y-20S parked quietly in the hangar.

Although Kangchi provided the engine and improvement plan, it basically did not participate in the subsequent manufacturing and development process. Therefore, the testing work was mainly directed by Dong Jun. He simply came to witness the first flight.

At the same time, leaders and engineers from COMAC were also invited to visit the test flight. This was actually an advertisement for Kangchi. After COMAC saw the power of the turbofan 30 with their own eyes, they would spend more money in the future. Be positive...

With the end of the test, the sky began to gradually darken. An hour later, a small civil aviation passenger plane slowly landed at the West Aircraft Test Airfield in the darkness.

After getting off the plane, Chief Shen skipped the greeting process and directly pulled Dong Jun and asked: "Where is the plane now? Take us to have a sneak peek!"

He is also looking forward to seeing how amazing the Yun 20's performance will be with a new heart.

Of course, people like Kang Chi who know the specific details of the changes will definitely not think so.

"Well... isn't this just luck 20?"

So even though they look similar in appearance, the actual performance is definitely very different!
Faced with the disappointment of individual leaders, Dong Jun and Kang Chi just looked at each other without making any excuses.

By the time all the leaders had arrived, the plane had taxied to the end of the runway and was getting ready for departure.

The test pilots were still Wu Shifeng and Sheng Hui from yesterday.

On the tower, Chief Shen briefly observed the aircraft on the runway through the telescope, then nodded to Dong Jun: "You guys start." "Yes."

"This is the tower, call Kunpeng."

"Kunpeng received it, please give instructions."

"All preparations for the first flight test have been completed, you can start taking off." After Dong Jun finished speaking, he added,
"Fly in the same way as yesterday's third rolling test!"

Wu Shifeng knew what Dong Jun meant as soon as he heard it.

And this was just what he wanted.

With such a strong heart, it would be boring if the first flight was just a conservative long-distance taxi.

Wu Shifeng directly pushed the throttle valve to the upper middle. At this position, the afterburner will automatically open, so the two turbofans 30 suddenly began to make a huge roar, and the huge tail nozzle gradually became red and high-temperature. Tail flame.

After confirming that the speed was normal, Wu Shifeng finally released the brakes, and the fuselage, which had been gathering momentum for a long time, suddenly started to accelerate and slide like a wild horse.

At the same time, Wu Shifeng's hand holding the throttle was still slowly pushing forward, and finally reached full power!

boom--

Accompanied by the roar of the engine, it seemed that within a few seconds of taking off, the 100-ton transport plane began to lift off the ground without even sliding on one-tenth of the runway, and then quickly shot straight into the sky!
Seeing such a shocking scene, everyone suddenly felt a little numb and were so surprised that they couldn't even speak.

"This... how many meters is the take-off distance?"

"Five hundred meters?"

"Absolutely not, the distance feels like four hundred meters at most!"

"That's more than three hundred meters?"

"How is this possible? Fighters have a rolling distance of more than three hundred meters, and this is a large transport aircraft!"

"The C17 seems to be able to take off and land in the shortest time of more than meters."

"..."

The picture was completely beyond the scope of normal cognition, making them subconsciously feel that this was simply a dream...

But the roar of the engine that still lingers in their ears reminds them all the time that this is what is really happening!
"Maybe it's empty and then the wings are bigger?"

"No, the size of the wings is exactly the same as before." Dong Jun finally couldn't help but said,

"In addition, I would like to report to all leaders that the shortest takeoff distance of the 20S just shipped is 263.1 meters!"

After hearing this accurate number, these military bosses suddenly became uneasy.

"Damn it! You have created a Kunpeng that is stronger than C17?"

"263 meters? Did you calculate correctly?"

"This distance...if the aircraft carrier deck was bigger, we would be able to take off from the aircraft carrier!"

(End of this chapter)