In order not to distract Chang Haonan at the most critical stage of the project, Ding Gaoheng did not immediately inform him of David's ghost on the AWACS project.

So the former didn't know at this time that he had been "booked" out in advance.

Of course, in fact, he himself has long had ideas about the early warning aircraft of the C909 passenger aircraft platform.

There were no conditions before, and it was true that there was no skill.

According to the current progress, the turbofan 10 should also go to the design finalization by the end of next year or the beginning of the next year.

As for the heavy-duty die forging press, it can also keep up with the schedule for the National Day, and it will not be a problem to start trial production in the middle of next year.

After solving the equipment problem, Hufei can start producing C909.

At the beginning, it was definitely the way of assembling loose parts, but in any case, with technical data, especially those involving the structure of the body, even if there were prerequisites for modification as a special machine platform.

At that time, the preconditions for building a large early warning aircraft will basically be ripe.

Therefore, the thoughts of the two people actually coincide.

It's just that the current Chang Haonan is still completely focused on the turbofan 10 project in front of him.

As an engine that has been developed from scratch from the ground up with a core machine, the workload of bench testing is indeed very large.

In order to improve the efficiency of the test, the 624 Institute even temporarily modified the SB102 test bench, which was originally used to test turboshaft/turboprop engines, and the Liming plant also temporarily scheduled the production of a second B0102 prototype to participate in the test at the same time.

Despite this, it took almost three months for the bench test to complete the core project before the installation test flight was completed, even though the vast majority of subjects were passed.

Jiang Fuhe took the test results that had just been printed out and found Chang Haonan, who was in the control room, to sign:

"The results of the proportional life test show that the turbofan 10 has a confidence level of more than 98%, which can meet the requirements of the design index for overhaul intervals of more than 1500 flight hours."

"According to our standards, at this point, the engine can start to be installed experimentally."

The latter had already seen the results before the report was printed, so he didn't need to waste any more time, and after a little confirmation, he signed his name at the end:

"So my work here is basically over, and the other projects in the future will be handed over to Mr. Hai."

He said and looked at Haiyide, who was wearing a padded jacket but was still broken by the wet and cold weather in the south.

"Don't worry, I promise to hand over the test data to you with quality and quantity."

The latter's voice was still a little shaky when he spoke, but he could still hear it with confidence.

Chang Haonan is also a routine advice, not really unable to let go.

After all, although Haiyide's past resume is average (compared to Chang Haonan), it is also an old-timer who has completely participated in the research and development of several models, and there is no problem with basic skills.

The latter test items, mainly the full cycle life test that can only be started when B0103 is shipped, is more time-consuming and energy-consuming, and the rest only needs to be done step by step according to the standard.

The so-called full-cycle life test is to really use an engine to the end of life.

And the corresponding is the proportional life test that Jiang Fu just mentioned and has just been completed.

The latter is to have the engine perform specific cycle conditions, thereby reducing the test time by a specific proportion.

For example, Chang Haonan chooses a time ratio of 1:3, which only takes 500 hours to simulate the test time of 1500 hours under normal circumstances.

Of course, since it is an analog, it is naturally impossible to restore 100% of the time. That's why there's a question of confidence.

The main reason for this is to shorten part of the process and allow the installation test to start earlier.

That is what Chang Haonan is about to deal with.

……

Now Chang Haonan wants to fly back to Shengjing, so naturally he doesn't have to fly to Taoxian Airport first like before, or most people, but directly land at Beiling Airport and it's over.

Especially if I was going to Factory 112 this time, it would be even more so.

"Mr. Chang."

As soon as I got off the plane, I saw He Ming, who was wearing a work uniform, with a few people, to the tarmac to greet him.

"Senior brother, long time no see."

Walking in the back position is Yao Mengna, the senior sister who has not seen Chang Haonan for almost a year.

During this time, the latter has been responsible for optimizing the final assembly efficiency of Project 11 and dealing with the weight reduction of the new airframe after the improvement.

After two years of experience, she has a bit of a stereotypical feeling of a female doctor.

Looking at Chang Haonan, who had just walked down the ramp of the business jet and was in high spirits, Yao Mengna suddenly had the urge to go up and hug the other party.

However, she also knew that the occasion and time were not quite right, so she quickly suppressed that feeling in her heart.

"Mr. Chang, the No. 1010 verification machine has basically completed the final assembly, and it will be parked in the workshop now, do you want to go and see it directly?"

He Ming felt that the atmosphere seemed to be a little strange, although he couldn't say it, he still keenly switched the topic to work.

"So fast?"

Chang Haonan thought that he would have to wait for a while before he could start the installation test flight after arriving at the place, after all, the difference between the verification machine and the mass-produced model is not small, and it is a product that needs to be specially assembled.

However, the efficiency of Factory 112 was clearly beyond his expectations.

"At the end of November last year, the Liming factory sent the B0201 machine over, and then we selected a few shifts from the comrades in charge of the assembly with the best technical level and work attitude, and worked overtime to complete the 1010 machine ahead of schedule."

He Ming explained, turned around, and led Chang Haonan to the assembly workshop, which was not too far away.

Next to the pulsating production line, which has gradually begun to gain momentum, a two-seater version of the yellow livery Flanker fighter is parked alone.

It was supposed to be one of the first J-11S, but it was selected for the installation test of the turbofan 10 engine at the stage of spare parts production.

That's why there is a 1010 number.

Chang Haonan walked over the other 6 planes that were being assembled on the production line and walked straight over.

At first glance, this aircraft is not noticeably different from the general Su-27UBK.

But if you go around the rear hemisphere, you will find that there is a clear difference in the tail nozzles of the two engines.

The engine on the right side is still the same as the AL31F in the other Flanker series.

However, the left-hand engine does not have the usual convergence adjustment tabs, but is made up of a whole circle of fixed and immovable metal plates.

There is another layer inside.

That is, the pilot spout.

Compared with the convergent expansion nozzle using the Laval nozzle principle, the ability to regulate the air flow at low altitude subsonic conditions is slightly worse, but the advantage is that many fish scales and connecting rods are eliminated.

It is lighter in weight and can greatly simplify the mechanical structure.

For the current production level of Huaxia, it is a very huge benefit.

In addition to this most obvious difference, the 1010 simply and crudely has a cable line between the belly inlet in order to be compatible with the analog-mechanical control system of the AL31F on the right and the full digital control system of the turbofan 10 on the left.

Considering that the aviation engine test aircraft does not need two heavy-duty hardpoints in this position, there are no other problems except for the ugly points.

Chang Haonan circled around the plane, then stayed directly behind the plane, then raised his head and stared at the two tail spouts for a long time.

"Finally...... Caught up with ......."

He reached up and lightly pressed his hand on the outside surface of the tail nozzle of the turbofan 10, and muttered in a low voice:

"A 100% domestic third-generation aircraft will soon come......"

(End of chapter)