Chapter 2121

"How much?"

"Let me see?"

“。。。”

The crowd gathered around.

Next.

You see the numbers on the screen and they start to go up.

Three hundred and six.

...

three hundred and seven.

...

three hundred and eight.

...

400.

"Huo!"

They could not help but be surprised. At 400 mph, there was almost no helicopter, and it seemed that they were still accelerating. In less than five minutes, they broke through 430.

Four hundred and four.

...

four hundred and five.

...

four hundred and six.

Then the speed stopped and kept going.

"That's great!"

"So fast."

"It broke through 46."

“。。”

Although they are well-trained, they can't help but be astonished by this number. In the field of helicopter, only one helicopter exceeds 460km / h.

What's more.

That one hasn't been in service yet.

"Isn't it very big? Why is it so fast? Unscientific. Besides, is this cruising speed, or has it reached the top speed? "

The highest.

Generally higher than cruising.

So.

If it's just cruising, it represents its highest speed, which can exceed 500 km / h. This speed is really a bit shocking.

"I don't know."

"Or..."

"What for?"

"Ask them." Since only airspace authorization is concerned, there are no aircraft parameters here. Only after the test is completed will there be records.

"It's a lot of money."

"Better have a picture."

"Mm-hmm!"

“。。。”

They are very curious about what they look like.

However.

This plan was not implemented in the end, but in a different way.

In five minutes.

It's not easy to apply for this from their satellite images, but it's not that they can't apply for it. Anyway, they are usually idle.

"Wow

"It's really big!"

"The beast."

"Domineering."

"I finally understand why I can fly so fast. Four propellers, four turbine engines and eight power outputs. No wonder I can fly so fast."

"Cow

"This design is too bold."

"Yes

“。。。”

Looking at the shape, they realized how luxurious it is. Although they don't know the specific parameters of the eight powers, they don't look bad.

"I want to have a close look."

"Mm-hmm!"

"Dreams."

"We are a secret unit. We can't let the plane come at will, but we can go and see it. They will test it publicly in a few days."

"Unfortunately, we can't go."

“。。。”

They all know that it's impossible for them to get together.

However.

The person in charge here has made up his mind to take people to have a look. It seems that it's not a big deal. There's nothing to do in winter, so it's time to study.

Yeah.

There can be.

。。。

Base.

Tower.

"Chairman, the air traffic control said that it would like to have a look in a few days." After receiving the news, the person in charge immediately reported that it was not a big deal.

I can agree myself.

But.

Tang Qing is here. He has to ask for advice.

"Oh?"

"Good."

Tang Qing promised with a smile. In fact, the military will send people to come in a few days. Although the helicopter plan is bold, it still attracts the attention of the upper authorities.

In addition.

There will be people from the work safety department.

After all.

One of the purposes is to put out a fire. Although it doesn't matter whether you buy Tang Qing or not, you still need to ask for it. It's best to have an order, even if you don't have one.

Anyway.

We don't live here.

Then.

Tang Qing continued to stare at the screen.

Right now.

At full speed, the shape of the whole aircraft has changed. At more than 100 km / h, the four cantilevers are still X-shaped.

Three hundred kilometers.

The fuselage became "wood.".

Four hundred kilometers.

Well!

It's a little different from "Mu". The horizontal part of "Mu" is gradually replaced by "^", because the angle is not so big. The main reason is drag reduction.It's in the atmosphere.

Low speed is easy to say. As soon as the speed is fast, we have to consider the influence of air resistance. When the speed is 400 km / h, the resistance will be great due to the shape of the vehicle.

So.

That's the design.

。。。

In an hour.

The dual power test is over.

Perfect.

During the period, there was no fault. What do you do next? It's still flying. It's still the same path as before, but this time other fault items will be added.

For example.

First:

"left front rotor power failure."

Next.

On the screen, the aircraft slightly deviated, a little unstable, but soon recovered its attitude, only the speed was lower than before.

Because.

By connecting the drive shaft internally, the power at the front right is dispersed. One engine drives two propellers. Of course, it will slow down.

Next.

Second:

the connecting drive shaft with the right front is out of order.

Change left back.

It's broken again.

Right back.

All in all.

According to the design, an engine can drive four rotors to rotate together, that is, if it breaks down, three rotors will be OK, that is, the speed will be very different.

It's guaranteed not to crash, but it's got to land fast.

In addition.

In addition to the rotor, the turbine engine can also play an important role at this time. Eight power, switching and supporting each other, bring great challenges.

However.

No matter how hard it is.

In front of human intelligence, it can also be scaled. In theory, as long as there are two different outputs in one cantilever.

It will not crash like a kite with broken line, and such a situation is almost impossible, unless it is hit by a weapon.

Like that.

It is a complete force majeure.

。。。

In an hour.

Base.

Six aircraft in the case of power failure, completed a complex power switch, fly back to the base, only two rotors in the rotation.

What's more.

Only one engine is still working, and all the other seven are "out of order", although the data shows that the pressure of that engine is high.

But.

Or insist on down, did not exceed the critical value.

In the end.

It's safely parked on the tarmac.

"Whoa, whoa, whoa!"

Tower.

Applause, excitement, this is a complete performance test, the result can only be said to be perfect. Such a complex environment can be overcome.

Eight power.

Seven.

But they can still land safely, which is the only one in the history of human aircraft design. It can be said that they made history in one year.

At this time.

Tang Qing's voice sounded:

"very good."

"This time, the test is very smooth. It's time for dinner. Let's have a meal first. The maintenance team will have a check and repair. In the afternoon, we will start the practical project test."

Then.

Everyone in the tower left excitedly.

Logistics team up.

Check.

Come on.

Then the pendant will be transported out of the factory and the preview content will be arranged in the afternoon. Soon, Tang Qing received a reward: six aircraft are no problem.

In response.

Tang Qing is not surprised.

I'm kidding.

The equipment is all in space. The soldiers use the best technology to make it. They have done thousands of experiments before, but it's very skinny.

It's hard to drive normally.

。。。

Tang Qing didn't know.

In an air force base thousands of miles away, as well as in the capital, many people who watched the exercise by satellite could not calm down for a long time.