Airplanes, machines born to realize the dream of human flight.

When the Wright brothers flew into the blue sky with their dreams for the first time, it attracted countless onlookers. At the time, it was a bigger toy.

And now, what Chen Zheng made by the man with glasses and others is also a huge toy.

Its appearance resembles a World War I aircraft: single-engine, double-layer wings, fixed landing gear, no cockpit.

In particular, the two-tiered wings, with numerous support rods and wire ropes connected to them, are unpainted, and the untreated wood color is everywhere, giving people a very unsturdy feeling.

It took Chen Zheng and them a whole day to build this prototype. Since there is no suitable adhesive, many places are linked with rivets.

Since the main structure of the whole aircraft is made of wood, even the electric motor and zero-electric conversion equipment are counted together, and its total weight is less than 1 ton, even after the electromagnetic gun, the mass sheet and the combined air-liquid cooling system are loaded, the lifting weight is only more than two tons and less than three tons.

From the perspective of the whole aircraft, the most difficult part is not the power, structure, flight control, etc., which I thought would go wrong, but surprisingly the problem is the landing gear system.

Due to the lack of manganese, reliable spring steel cannot be made, and the alternative materials are completely clueless, so they are stuck in this small link, resulting in the suspension of the development progress.

After repeated calculations by the man with glasses, the cushioning problem of the landing gear still could not be solved, and finally Chen Zheng provided an emergency idea: use a thick stack of special-shaped sheets to buffer and absorb the huge impact of landing through the deformation of the metal.

That's right, the buffer device built along this line of thinking is disposable.

In this way, with all kinds of "temporary measures" on its body, such a prototype was finally manufactured after compromising to the extreme in engineering.

Large expanses of snow have been cleared of the open ice, and even a layer of soft wood chips and dirt has been covered.

On the shore, Chen Zheng and the girl stood together, while the glasses man and others were nervously testing the remote control system.

"Are you serious?" The girl said suddenly.

"Of course." Chen Zheng looked at the plane, suddenly turned around and said seriously.

"You have so much confidence in yourself...... Do you think you can succeed? The girl asked with a smile.

"It has to work!"

"Buzz ......"

As soon as Chen Zheng's words fell, the plane's engine began to spin, and the propellers blew the grass clippings on the ground......

"My lord, are you going to start—" In the loud noise, the man with glasses came to Chen Zheng's side and shouted loudly.

"Let's go!" Chen Zheng nodded.

As the glasses man waved his hand to his little brother, the wooden plane jumped out! After sliding to less than 100 meters, he suddenly pulled out an almost straight upward arc and soared upward!

It's almost time for a helicopter...... Chen Zheng frowned.

The exaggerated thrust-to-weight ratio gives it excellent maneuverability, but although the structure of the plane's fuselage has been calculated by the man with glasses, the instrument is not a professional supercomputer after all.

There are no professional algorithms such as pneumatics and mechanics in this computer, and its computational mathematical models are all researched and input by a few people such as the man with glasses, and its reliability cannot help but make people doubtful.

"Tell him to fly for me!" Chen Zheng said to the man with glasses.

"Sorry...... He may be a little overexcited...... I'll go right away. Seeing that Chen Zheng was not good, the man with glasses quickly slipped back to his own side and slapped the operator.

After that, the trajectory of the plane was really regular, and after completing a series of tests in all directions, it crossed the heads of Chen Zheng and others, and rushed straight down......

As the plane got lower and lower, Chen Zheng's heart also rose to his throat, and when it landed safely, before it could stop Chen Zheng jumped over with a flicker, and went to check the cushioning device of the landing gear against the strong wind of the propeller.

The deformation of the thick stack of special-shaped copper and iron buffers was not as huge as expected, and it was not even one-tenth of what was expected.

"How?" The man in glasses ran over panting.

"Not bad, see for yourself."

“…… I didn't expect this to work! The man with glasses looked incredible, "My lord...... What a ...... you have in mind Terrible. ”

The man with glasses searched his stomach for a long time, but he didn't come up with a "powerful" adjective.

“……”

Chen Zheng didn't pay attention to the man with glasses who couldn't make a fool of himself, and he carried a small instrument to explore up and down around the drone.

This small instrument is also the private collection of the man with glasses, and it was recently looted by Chen Zheng. Its role is to probe the internal structure of objects and form real-time image data.

Before the drone took off, Chen Zheng had already done a complete survey, and its data model was saved in the server. After one flight, the test is re-detected, and the data comparison can be used to determine the amount of deformation and where the damage occurred.

After the plane was completely detected, Chen Zheng returned to the data center with a small instrument and compared the results of the two flights.

The results were not encouraging.

There was a lot of structural damage inside the aircraft, and even rivets had collapsed in some places. After an intense analysis and the exclusion of many other causes, it was found that the result was not due to structural design problems, but to the power system.

A 450-horsepower electric motor is too rich for an airplane – like putting a V8 engine on a bicycle, the big heart of a small car will naturally have problems of one kind or another.

"If you need help, you're welcome." The girl said suddenly.

"Of course." Chen Zheng looked at the comparison data on the screen without looking back, and muttered to himself: "Maybe I need your help soon......

……

After replacing some accessories and strengthening the structure, the drone rose into the air again.

This time, Chen Zheng did not continue to observe at the scene.

The main purpose of this World War II aircraft design is to test a series of data such as remote control system, self-made servo motor, power system, structural strength and so on.

Successive test flights will expose a variety of problems, and the data obtained will become a solid foundation for Chen Zheng to develop the next generation of drones.

After returning to his cabin, Chen Zheng took out one from a stack of design drawings and spread it out on the table.

This piece of bark paper, covered with carbon threads, depicts a bizarre plane with a single engine, a double-hull, diamond-shaped wing, and a horizontal tail attached.

If you are familiar with World War II, you will find that the aircraft in this design is somewhat similar to the P38 "Lightning", but it is very different.