The high-binding titanium nitride coating definitely has an extremely obvious addition to the resistance of the hot end components of the aero engine.

This allows Chang Haonan to further improve the working performance of the combustion chamber and turbine.

For sea-level thrust, the final gain is only about 0.5 thrust-to-weight ratio, but there is a solid increase in the usable thrust of the aircraft at medium and high speeds.

According to the current calibration, at the "typical" supersonic speed of Mach 1.6 and an altitude of 15,000 meters, the effective usable thrust of the turbofan 10 is even about 40% higher than that of the F110, a subsonic optimally oriented model.

In fact, in the years before his rebirth, heat-resistant coatings had even evolved to use higher levels of materials such as titanium aluminide.

It's just that at present, the carbonitriding process and titanium nitride coating process are not easy for Huaxia to master, and the yield rate is not very high after trial production with the old turbine design scheme.

In addition, the special-shaped air film cooling hole developed by Chang Haonan is also a time-consuming thing, which is difficult to achieve by one-time processing for the EDM drilling equipment that is not very "smart".

Therefore, according to current estimates, the production speed of the hot end components of turbofan 10 can only be about one-fifth of that of turbojet 14.

Although the aero engine is expensive, it is still an industrial product that needs to be mass-produced after all, and the blind pursuit of advanced technology affects production.

At this point, even if the preliminary design of several core subsystems of the turbofan 10 has been completely completed, the next task is to combine the various parts, and then make some detailed adjustments and optimizations according to the coordination between them.

This part of the work is not very difficult, mainly to reunite the design teams that worked separately in the early stage.

Then there's component-level performance testing, as well as the production and testing of prototypes that really determine the fate of a model's engine.

For the average type of engine, walking here can be regarded as the most complicated and torturous part of the real beginning.

Just like programming, writing code in one go is not difficult, and debugging is the real test of a programmer's patience and physical fitness.

But the Turbofan 10 is not a general model.

With the blessing of Chang Haonan and the magic system, most of the pitfalls in the design process can be avoided in advance.

For him, the testing process is more like checking and filling gaps, and there is hardly anything that will affect the overall situation or even lead to rework.

However, before that, Chang Haonan still had to go back to the capital first.

First, on Shengjing's side, the work in the next few weeks can be handed over to the chief engineer Haiyide, who has to pay attention to the production progress of the die forging press.

Second...... By the way, I also satisfy my curiosity.

He did wonder what the hell was going on with those two complete sets of military GPS navigation equipment......

After Chang Haonan won three awards at the beginning of the year, and took advantage of the momentum of the establishment of the Equipment Industry Department to turn the die forging press project into a positive one, his travel configuration has also improved a lot.

From the free business class of United Airlines, it became the Challenger 601 he flew in last year.

It's just that the national flag livery of the special pilot division was replaced with the civil aviation livery of United Airlines.

"The chief may be the youngest one in the list of people who can enjoy the treatment of special planes nationwide......"

Zhu Yadan sat on the sofa opposite, pressed the soft armrests of the seat, and his tone was full of admiration.

When she was assigned to Chang Haonan as a guard before, she was worried about whether this was a disguised distribution.

Now it seems that it is clearly overthinking.

"Listening to Director Ding, it was impossible for me to have my turn to have this configuration."

Chang Haonan adjusted his posture slightly, ready to take a break on the road later:

"But this Challenger 601 is not loved by my grandmother and uncle on the 34th Division, and there are few flight missions in normal times, so I simply changed the livery and brought it to me to use ......"

The cabin environment of business jets is indeed better, but it is too small.

Like this Challenger 601, it can only be set up with a maximum of 19 seats.

The number of people who can be equipped with special planes in Huaxia is generally not small, and everyone is crammed into such a small plane, but it is not as comfortable as modified trunk airliners such as Boeing 737.

In the end, it was cheaper Chang Haonan.

Although this plane is a civil aviation livery but does not fly civil aviation routes, so it landed not at Nanyuan Airport, which is commonly used by United Airlines, but in the western suburbs of the 34th Division.

The distance from here to the city center is actually about the same as Nanyuan, but the flow of people is significantly less, and there is no need to wait for luggage after getting off the plane.

Even the car can be left in the parking lot all the time.

Compared with the dual-use Nanyuan, it is indeed much more convenient.

……

When Chang Haonan walked into Ding Gaoheng's office, before the latter could speak, he turned out two bulging file boxes from the filing cabinet next to him.

Judging from the lower position, it has been some time since it was put there.

"I know what you're trying to ask, come and see for yourself."

Ding Gaoheng smiled and put the two stacks of files on the table, signaling Chang Haonan to flip through them by himself.

The latter took a deep breath and widened his eyes slightly:

"This ...... Is it I able to see it? ”

Having said that, at the same time as the question was asked, he had actually begun to unpack the two file boxes.

It's just that the hands are a little shaky.

Ding Gaoheng told him that he had obtained an unmanned underwater vehicle from the United States through the Maritime Self-Defense Force.

Generally speaking, no matter how small the size of an unmanned underwater vehicle is, it must be about 100 kilograms and one or two meters long.

It is as difficult to get hold of this thing as quietly as it is to steal missiles from a military base in West Germany.

Therefore, the moment he opened the file box, Chang Haonan's mind had already flashed the names of countless legendary spies.

Then he saw the title of the report at the top:

Report of the Naval Aviation Forces on the Discovery and Expulsion of Submarines of Unfriendly Countries in the Waters of the East China Sea Exercises

"Hiss......"

Because the difference in the plot is too big, Chang Haonan was stunned for two seconds.

Then I realized that the "get it" in Ding Gaoheng's mouth and the "get it" in his imagination may be so different in terms of methods and methods-

I thought I was watching "Mission Impossible", but it turned out that I actually played "Greyhound......

"So ......"

Chang Haonan spent about half an hour browsing the relatively important content in it:

"Is it our navy, in the course of anti-submarine exercises, that it regarded a submarine of the Self-Defense Forces as an imaginary enemy of our own Blue Force?"

Ding Gaoheng nodded.

"And then, by accident, blew up the submarine?"

"Not really."

Ding Gaoheng shook his head:

"The actual situation is that when the comrades of the navy were bombing the fish, they had already determined that this was an unfriendly target of a third country, otherwise it would not have been possible to directly throw a thunderbolt down."

"It's just that after all, this matter still involves the French army, and considering international relations, in the end, the statement 'everything is a coincidence' is still used in the content of internal commendation."

"Tut-tut......"

Chang Haonan sorted out the report in his hand and put it back in the file box, and said with emotion:

"I still have to thank the comrades of the Navy, otherwise we don't know when the prototype production of our GPS jamming equipment will begin, let alone officially put into use."

said so, but Chang Haonan's emotion actually has another reason.

In his last life, he saw on the Internet that coastal fishermen salvaged the sonar released by the US and Japanese navies, and then sold it as scrap.

Jokes, the content is naturally basically made up.

Our fishermen have indeed fished something of more value.

An MK46 light torpedo, that is, the prototype of the Fish-7.

However, when designing the Fish 7, China actually introduced the technical data of the MK46 through formal channels, so there is no direct relationship with this torpedo that was fished up.

However, who would have thought.

After being reborn, the joke that used to be just a fun thing to watch turned out to be true......

(End of chapter)

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