Of course, Lieutenant Wang's exclamation was not heard by anyone, and even if he heard it, no one would refute him.

As for the muffler of this engine, the original muffler on the original motorcycle is used.

They have also tried the muffler system themselves, but none of them are as thorough as the original ones.

This also proves from another aspect that the muffler that Li Zhenhua made is really awesome.

The noise generated by the propeller rotation will cover the sound of the engine.

Lieutenant Wang closed the small window again, looked at the propeller rotating at a constant speed,

Propeller noise is also kept out of the aircraft cabin.

Then I gave the ground staff a thumbs up, and the ground staff received it.

On the side of the temporary tower, Mr. Yan, as the chief teacher, also gave the order for the test flight.

Lieutenant Wang, who received the take-off order through the headset, was also unambiguous.

Controlling the plane on the runway, it slowly started to accelerate,

When the plane reaches a certain speed, the two engines drive the propellers to rotate crazily,

The thrust generated by the propeller pushes the whole aircraft forward,

Under the action of this thrust, the nose landing gear of the aircraft dropped off the ground at once.

Lieutenant Wang felt the state of the plane and knew it was time to lift.

Feel for the throttle handle on the instrument panel with your right hand, push the handle to the front, and maximize the throttle.

Grasp the right moment, hold the V-shaped joystick in your hands tightly with both hands, and lift it up with a little force.

At full throttle, the nose of the aircraft leaves the ground,

Because Lieutenant Wang was driving for the first time and was not familiar with it,

The movement of lifting the joystick was a bit too big, almost causing the tail of the aircraft, which had not yet left the ground, to rub against the runway.

That is to say, Lieutenant Wang has rich experience, corrected the attitude of the aircraft in time, and loosened the control lever, so no accident was caused.

The plane was completely separated from the ground, and there was room for Lieutenant Wang to do whatever he wanted.

The full-throttle state was not released just now, but the joystick was pulled up forcefully.

The plane also followed Lieutenant Wang's driving and made corresponding movements.

At this moment, the plane and the ground formed a large climbing angle of 40 degrees, climbing and flying towards the blue sky.

When the plane climbed to 2,000 meters and was about to enter a stall, Lieutenant Wang changed the plane to level flight.

After the change, the right hand was also free, and the throttle was withdrawn from the full throttle state.

The speed of the plane was kept at 240 kilometers per hour, and it flew at an altitude of 2,000 meters for several minutes.

"Control tower, tower, request to climb to 3,000 meters to continue testing."

Lieutenant Wang was flying freely in the sky as if nothing had happened.

But on the ground, it was a completely different mentality. All the people on the ground were scared into a cold sweat by the scene of just taking off.

"Old Zhou, look, did you miss a word just now!"

Mr. Yan turned his head and asked Mr. Zhou who was holding a telescope beside him and shaking his head following the plane.

"Ah, what are you talking about?"

"I said, I think, Boy Wang is taking our little toy as a fighter jet.

Did you not tell him that this is a civil aviation plane, not a fighter jet! "

Hearing Mr. Yan's question, Mr. Zhou slapped himself on the forehead fiercely before speaking.

"Oh, I really forgot, it's my fault too, I've never done anything for civilian use before,

I thought it was a fighter jet, so I didn't notice it, and I didn't ask for it. "

The surrounding staff listened to the conversation between the two, and they also smiled, as expected.

"Okay, old Zhou, I don't know you yet?"

Facing Mr. Yan's words, the old man surnamed Zhou said immediately.

"It's okay Yantou, think about the propeller planes in World War I and World War II,

Aren't the parameters of our stuff better than back then? Performance is fine! rest assured. "

There was indeed nothing wrong with what he said, and everyone once again focused their attention on the plane in the sky.

The plane climbed to an altitude of 3,000 meters and changed to level flight again.

Lieutenant Wang was also at this height, cooperating with the ground tower, and was testing various indicators of the aircraft.

After a series of tests, all the indicators of the aircraft were within expectations.

As far as Lieutenant Wang's current driving experience is concerned, the control, flight control, and avionics of this aircraft can satisfy him.

But I just feel a little dissatisfied, and always feel that the motivation is not so sufficient,

As far as the model is concerned, as long as the engine is more powerful, he can fly the plane better.

With this feeling in mind, he pressed the communication button with the ground.

"Call the tower, the bird calls the tower!"

"The tower received it, is there any problem?"

"Little Bird applied to lift the engine restriction, and the maximum ceiling test will be carried out next! Please agree with the control tower."

At the temporary tower on the ground, the old men around all looked at Mr. Yan.

The old man Yan nodded with a serious face, walked to the side of the talker, held the microphone in his left hand, and put the earphone on his ear with his right hand.

"Lieutenant Wang, this is Yan Hang, I allow you to lift the engine restriction,

In the ceiling test, please remember one thing, don't take risks, everything is safety first,

Don't make fun of your own safety by skydiving immediately. "

Lieutenant Wang was flying the plane, circling over Hongdu Aircraft Factory.

Hearing Mr. Yan's instructions, he nodded subconsciously, and answered through the communicator after he realized it.

"The little bird received it, the little bird received it, everything is about safety."

Lieutenant Wang released the button of the communicator, and stretched out his right hand to the instrument panel.

A switch with a cover on the instrument panel is particularly eye-catching ~www.wuxiamtl.com~ Open the cover,

The switch is exposed, flip the switch to the on position.

The moment the switch was turned on, Lieutenant Wang immediately felt that the plane he was sitting on was like a horse that had let go of its reins.

The horsepower of the engine is greatly increased, and the throttle valve is pushed forward to the end, and a feeling of pushing back is transmitted.

The speed of the plane rose a lot, and he also pulled up the control lever.

The plane was also moving, the nose of the plane was at a 40-degree angle to the ground again, and it was flying towards the sky.

The flight altitude is increasing, the propellers are also spinning crazily, and the two engines are working desperately.

Soon the plane climbed to 4,000 meters, but this was not the final point, the altitude was still rising.

4500 meters

5000 meters

5100 meters

5200m…

When the altitude reached 5,600 meters, Lieutenant Wang could clearly feel the engine's effort.

When climbing to 5780 meters, Lieutenant Wang finally changed the attitude of the plane to level flight.

He knew that the engine had reached its limit at this time, and it was completely unnecessary to continue.

If there is a problem at that time, it will not only endanger his safety, but also cause unnecessary losses.

As far as this plane is concerned, with its current power, it can rise to an altitude of nearly 6,000 meters.

This is already a remarkable achievement, although Lieutenant Wang still feels that he lacks motivation.

"Tower! Tower! The bird has now reached the airspace of 5780 meters,

The flight attitude has been adjusted to level flight, and the current flight status is normal. "

From the temporary tower on the ground, Lieutenant Wang's report was heard by everyone present through the loudspeaker.

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