The ignition was successful.

But no one applauded.

All eyes were on the item's red electronic display above the lab.

On the display, the number 3248 is particularly prominent.

Seeing this number, many people breathed a sigh of relief: the thrust of 2248DaN, that is, 22.48KN, is the slow thrust of the "tay" MK650-8C, and the next test is the maximum continuous thrust of the "tay" MK650-8C, which is also the most used power stage of an aero engine.

As Johnson slowly pushed the throttle valve on the console, the numbers on the electronic display were also beating rapidly, gradually changing from 2 to 3 and 4, and finally, the number was stable at 5765DaN (57.65KN).

Everyone couldn't control their emotions anymore, and the cheers finally rang out: success!

Although this "tay" MK650-8C engine is assembled using manufacturing materials, blanks, finished parts and accessories provided by Rolls-Royce, less than 4% of the parts produced by Huaxia are self-produced, but this is simply the most significant significance is that this engine is from the hands of Huaxia's aeronautical engineers!

That's the biggest point!

After the engine worked continuously for 2 minutes at a maximum continuous thrust of 57.65kn, Johnson moved on to the next test item: maximum intermediate thrust.

The test of the maximum intermediate thrust also went exceptionally smoothly, with Johnson slowly pushing the throttle valve, and finally, the number of 6125DaN on the digital display indicated that the maximum intermediate thrust of this engine was also completely fine.

According to the test process formulated before, the test should have ended here, but Johnson turned his head and asked Chen Geng: "Sir, do you want to test the maximum thrust?"

"There's no such test item on the test flow chart, right?" Chen Geng frowned and asked.

"Yes," Johnson nodded frankly, "but I think this engine is good, no less than the original Rolls-Royce 'tay' MK650-8C, I think continue to test maximum thrust, no problem." ”

Chen Geng frowned, pondered for a moment, and then asked slowly, "Mr. Johnson, are you sure?"

It's not that he feels sorry for these engines, but the test process has been unusually perfect so far: all the test items have been successfully completed without any problems, but, although for Rolls-Royce, the "tay" MK650-8C is already a highly mature product, but for Huaxia Commercial Aircraft Manufacturing Industry Group, this is the first ignition test of this engine after all, why is there any need to continue to risk testing the maximum thrust? After checking the engine and making sure that there is no problem with the engine, wouldn't it be good to test the maximum thrust in the next test project? If the test fails, how much damage will it take to the morale of the whole team?

"I'm very sure that this MK650 is no problem, and it can continue to test the maximum thrust," Johnson nodded, stretched out his hand and pointed to the engine parameter monitoring platform in front of him and said to Chen Geng: "You see, everything in the engine is running well, there are no problems, and the good condition is like a MK650 that Rolls-Royce has just appeared, of course ......"

Speaking of this, Johnson paused slightly, and he shrugged: "You are the boss, and all the test subjects have been completed, if you don't think it's necessary, it's okay." ”

Meng Haibo, Huang Wenqing and others looked at Chen Geng nervously, worried about whether their boss would have a hot head - just like Mr. Johnson said, all the test items have been tested today, you just end today's test, why take this risk?

But Chen Geng pondered for a moment, but nodded: "Since you think there is no problem...... Go ahead. ”

What the?!

Unexpectedly, Chen Geng actually agreed like this, Meng Haibo was suddenly anxious: "Chairman ......"

Chen Geng waved his hand: "I believe in Mr. Johnson's professionalism and experience. ”

“......”

As soon as Chen Geng's words came out, a group of people with opposing opinions were all speechless: Mr. Johnson's ability and level, everyone has seen it with their own eyes, and I don't know how many times stronger than our engineers, since Mr. Chen Geng believes in Johnson...... While I'm not in favor of continuing to test with maximum thrust, if I had to make it clear against it, I wouldn't do it anyway.

"Thank you. ”

Johnson didn't expect Chen Geng to be so decisive, and he agreed to the maximum thrust test project so happily, and he was really a little moved in his heart - don't look at what he didn't say, but Johnson actually knew very well in his heart how much pressure Chen Geng would be on once the test failed.

Chen Geng didn't say much, just nodded: "I believe in you." ”

Johnson didn't say anything more, just slowly pushed the throttle valve to the end.

With the powerful fuel pump, the combustion chamber of the aviation kerosene right pump such as the "tay" MK950-8C, the annular tube combustion chamber composed of 10 air film cooling flame cylinders began to work at full strength, and the unique whistling sound of the turbine suddenly became high-pitched again!

At the same time, the red numbers on the electronic display screen also began to jump rapidly from 6125, 6199, 6259, 6322, 6389...... Finally, when the number finally jumped above 6445, it stopped jumping.

Looking at the bright red words 6445 on the electronic display screen, the next moment, the applause in the huge laboratory was thunderous, and all the engineers and technicians who participated in this test couldn't help but start applauding hard!

"Hooray!

"We succeeded! We succeeded!"

"Hahaha......"

............

Chen Geng couldn't help but burst into tears.

Although he is not a member of the aviation industry, he knows all too well what it means to achieve maximum thrust output from the first test run: this means that everything about the engine, including the tolerances of the components and the precision required during assembly, is within the relevant Rolls-Royce specifications!

For a company that had previously produced only turbojet-6 turbojet engines and had created an unprecedented and probably no latecomer rate of more than a quarter of the repair rate, this is invaluable!

Even Johnson is no exception, he was calm and confident just now, he is happy like a child who has got a beloved toy, he hugged Chen Geng, patted Chen Geng's back hard and laughed happily: "Chen, do you see? We succeeded, we succeeded, I said we have no problem......

Chen Geng also hugged Johnson and shouted and jumped happily: "I knew you could do it, I knew you guys would definitely be able to do it!"

........................

The maximum thrust test of the engine was only carried out for 10 seconds, after all, this is only the first test run of the "tay" MK950-8C, after slowly shutting down the engine in accordance with the standard operating procedure, the engineers waiting on the side did not care about the high temperature of hundreds of degrees Celsius in the engine body, and began to carry out the most preliminary inspection of the engine: visual inspection.

Through visual inspection, check whether there are any places and parts that are obviously deformed due to high temperature, and check whether there are oil stains......

Even Johnson, the commander-in-chief, was not idle, shouting to remind everyone to pay attention to safety and not to be burned, while rushing to the engine impatiently, carefully checking the engine casing and the condition of each accessory subsystem in a visual way.

However, these have nothing to do with Chen Geng, the engine not only ignited successfully at one time, but also completed the test of three typical test items of continuous thrust, maximum intermediate thrust and maximum thrust, which is enough to prove the superiority of this engine, therefore, he can't close his smile with a mouth.

Meng Haibo, Huang Wenqing and others are even happier!

Although they did not recommend that Chen Geng continue to carry out the maximum thrust test before, but since the test has been successfully completed, it is another matter, Meng Haibo, who was smiling from ear to ear, loudly ordered people to prepare a celebration banquet; on the other hand, he secretly made up his mind in his heart: since the engine is fine, he has to invite a few heavyweight leaders to visit the "official" ignition ceremony, which is an excellent opportunity to report his achievements to the central leaders.

As for Huang Wenqing, he finally made up his mind.

"Chairman?"

"Something?" Looking at Huang Wenqing, who almost wrote on his face, "Chairman, I have something to do with you", Chen Geng nodded: "I didn't say it." ”

"That's the case," Huang Wenqing said: "Chairman, you say, can we think of a way to sell the engine to the Demon Capital?"

"Huh?!"

Chen Geng, who was originally immersed in excitement, almost bit his tongue when he heard Huang Wenqing's words: Sell the "tay" MK950-8C to the Modu side?! You really dare to think about it, he hurriedly waved his hand: "No, no, the thrust of the MK650 is not enough, and the thrust of the Pratt Whitney JT8D-217A engine on the McDonnell Douglas MD-82 that the Modu is planning to build is 25,000 N......

The maximum take-off thrust of the JT8D-217A engine on the McDonnell Douglas MD-82 reached 89 kN, and the maximum thrust of the "tay" MK650-8C was only 64.45 kN.

"It's not MK650," Huang Wenqing explained: "Didn't you also sign an agreement with Rolls-Royce to upgrade the thrust based on the 'tay' series of engines, and then we will not only make 75,000 Nt thrust engines, but also 85,000 N, 95,000 Nt thrust engines, such engines we can sell to the magic capital, do you say this reason?"

Hey?

Seem...... It's not impossible.

Chen Geng touched his chin and began to ponder: Pratt Whitney's JT8D-217A engine is not a large bypass ratio engine, this is a small bypass ratio turbofan with a bypass ratio of only 1.04......