In the rear, Li Zhen and others also saw this scene through the clairvoyant mirror.

Liu Jinghong couldn't help but go crazy: "How is this possible?" Is this going up? The speed of the car has not gone up yet, and it has only run a kilometer, why did it look up so quickly? ”

Li Zhen pinched a handful of sweat in his fist, and secretly said in his heart, this time, it seems that there is a door.

Xu Xiufeng slowly pushed the operating stick up, and the biplane, the double wings were at a horizontal and parallel angle, and slowly cocked up at the same time.

In the breaking mode, it changes to the ascending mode.

The invisible air fluid frantically passes through the two layers of wings and then exits through the back of the wings. Produced a double win lift.

Just after Xu Xiufeng pushed the operating stick to the take-off angle, Xu Xiufeng suddenly felt a powerful energy, which made him feel weightless.

The plane began to look up violently, and the rear wheels rubbed against the ground and continued to move forward at a speed of forty yards.

The forward power is converted into lift, which is knowledge in fluid mechanics. I don't know how many times the people in the Aviation Academy have memorized these laws, but now, they really experience what it's like to be like.

It's a beauty that can't be described in words.

Soon, the two rear wheels were also lifted up and off the ground.

At that moment, the steam car suddenly blocked its power, paused, and then drove forward again at a frantic pace. And the speed of the steam car actually began to increase steadily. Forty-five miles, fifty miles!

Broke through the 50 km/h mark.

Just when the driver was puzzled, he suddenly heard a scream from behind him: "Ah! Joyfully! ”

"It worked!"

Turning his head, his eyes widened in distraction.

But after seeing the car, the double-decker plane was connected with a rope.

At this time, it flew into the blue sky like a big kite. Dragged by a steam cart, he broke through the air and walked forward.

The height is about 10 meters.

Sixty miles!

The driver suddenly noticed that the steam car had exploded into violent acceleration. In an instant, I figured out that this was because it was separated from the strong friction between the aircraft and the ground for hundreds of kilograms, and the friction between the aircraft and the earth was converted into the friction between the aircraft and the air.

In comparison, air has much less friction than earth.

Silently noted down this point in his heart, and the driver drove forward even more excitedly.

On both sides of the runway, earth-shattering discussions sounded.

"Then why did it fly?"

"What's that?"

"I know that this is the result of a long time ago research of the Kyushu Academy of Sciences, which is called fluid mechanics."

"No, it's aerodynamics."

"It's really flying."

"These double wings are really strong, and they can fly so easily."

"But...... What's next? Will it be dragged down forever by a steam car? ”

“……”

In the rear, everyone in the aviation institute jumped up with cheers.

"It worked!"

"Double-decker winged plane, takeoff was successful."

"The trial is feasible. Fast, record data, how many kilometers, how much speed when taking off. Be sure to document it in detail. ”

"This is a well-deserved event in the history of world aviation, and it should be written about."

"In the end, it was the biplane that won."

“……”

Li Zhen was also excited and couldn't calm down, but he didn't expect that no one was optimistic about this start. Big, dumb and heavy double-decker aircraft achieved the final fruit.

looked at it in a blink of an eye, but saw Liu Jinghong looking ahead with a complicated face, without saying a word.

Li Zhen patted him on the shoulder: "Don't be discouraged. ”

Liu Jinghong shook his head: "Master Li, I am not discouraged. I'm just convinced that the royal road is a single-layer wing aircraft after all. ”

Li Zhen smiled: "Maybe the future is really as you said." But at present, the problem of motivation cannot be solved. This one...... Hard. ”

Liu Jinghong was silent for a long time: "I won't give up." Master Li, I will definitely research a single-layer wing aircraft that will shock the world. Single-layer wing aircraft should be the real blue sky hegemon. ”

"I'm optimistic about you."

“……”

The two talked.

But a few kilometers away, Xu Xiufeng's face in the sky changed wildly, and in the air, he suddenly felt a bump.

'Gas'.

Xu Xiufeng's face turned pale, and he turned his head, only to see that the wings of the lower layer on the left suddenly collapsed. It's not the wings that break, it's the wire that pulls the wings off.

"No!"

Xu Xiufeng screamed, and hurriedly pushed the lever to control the wing descent.

Everyone only calculates how many kilograms of force the wings need to bear, but they all ignore the fact that the pulling, pulling, the wires that control the wings to do their movements, and the transmission system actually have to bear the same weight.

It's okay if he doesn't move the lever, but he moves the lever. The steel wire and transmission system, which were originally in a tight state, were all unbalanced due to external forces.

'Karma'

The wire of the upper wing on the right is broken.

"Ah......h

Xu Xiufeng no longer had the means to control the lever. Because by this time the plane had begun to shake violently. It's like a plastic bag in a strong wind, fluttering and uncontrollable.

Left and right, vigorously doing exercises.

The driver of the steam car discovered this problem, listened to the screams in the air, and turned around to see that Xu Xiufeng in the plane had been thrown out. Got out of the cockpit and hung outside. If it weren't for the safety rope connecting him, he would have been thrown away. Rao was also thrown out of the plane.

Subconsciously, the driver of the steam car stepped on the brakes.

The moment the brakes are applied, the driver realizes that something is wrong.

Wrong!

The plane is pulled by ropes, which are taut. Only when you are in a tense state and slow down slowly can you make the plane land safely.

But suddenly slammed on the brakes, and the tow rope instantly relaxed.

Plane...... It swept past the steam cart that pulled it, and fell forward under the drive of inertia.

"Don't!"

In the rear, Li Zhen and the others yelled frantically, and then boarded the steam car and headed towards that place.

On both sides of the road, everyone's eyes widened, and there was a look of horror in their eyes.

I just saw that the plane skipped the steam car and then fell headlong forward.

"Ahh

Terrible screams resounded throughout the sky.

Xu Xiufeng clung to the edge of the cockpit and closed his eyes, not daring to look at the land that was getting closer and closer.

After closing his eyes, he suddenly felt that his heart was extremely peaceful, quiet, and without imaginary despair......

Perhaps, as he said on the day of the successful paragliding: the blue sky is my home.

'Bang'

There was an explosion.

The plane fell headlong into the ground, and the sky was covered with dust.

When the dust cleared, the ground was littered with debris.

Wooden frames, steel pipes, steel wires, and wooden blocks are scattered everywhere.

The farthest part flew dozens of meters away.

Xu Xiufeng's flesh and blood were lying there blurred, and a large wooden board was imprinted on his head.

The dust cleared, and countless onlookers in the entire Dafeng Terrace were silent.

When Li Zhen and the others felt it, they cried as Liu Jinghong collapsed: "Old Xu! ”

Only then did everyone recover from the shock and rushed over: "Save people!" ”

"Hurry up and save people!"

“……”

Li Zhen took a deep breath, his eyes reddened. Looking at the bloody old body, it was extremely uncomfortable.

In the chaos, everyone at the Kyushu Academy of Sciences was in a daze.

I don't know how I got back from Dafengtai, and the atmosphere was extremely low.

Everyone couldn't help but sigh and sigh......

This old man, who was a seventy-eight-year-old monk at the age of seventy-eight, was once a senior lecturer at Imperial College London and is now the vice president of the Institute of Aviation Power of the Kyushu Academy of Sciences, and finally gave his fate to the sky.

Flight test, it was successful.

So God took him.