Chapter 602: Self-defeating

What should an engine look like after 150 hours of experimentation?
During the test run, there will be various failures, such as an oil pipe bursting, the lubricating oil will be everywhere, but now, this engine is clean.
Did you wipe it clean?
Hearing this, the person in charge suddenly thought of something, his face showed a trace of panic, and he calmed down after a while: "Yes, we heard that the superior is coming to visit, and the engine has been wiped clean specially."
It's all to welcome the superiors and show our clean and tidy work style, how about it, can't it?
"Then you guys wiped it really clean. Not only did you wipe the outer shell like a new one, but even the inside was wiped clean."
After speaking, Qin Guan put on his new white gloves, then put his hand in from the tail nozzle, touched the turbine blades inside, and then took out his hand. Then, he raised his arm and stretched out his fingers for everyone to see. Take a look clearly.
I didn't even touch any dust!
How is this possible?
You know, even if it is wiped clean, after 150 hours of test run, the temperature on the turbine blades is more than one thousand degrees. In this case, the turbine blades still have a metallic luster, which looks like The new one?
You put a nail in the stove and burn it red, and then take it out, it will change its appearance. After 150 hours of burning, there must be burn marks on the surface of the turbine blades. Now Qin Guan uses white gloves. , There is not even a dust on it, let alone the black product after burning.
Even if the aviation fuel of this era is pure, it is impossible not to emit black smoke, right?
Seeing this, the Air Force officers present already understood something.
To say that this engine has gone through a 150-hour long-term test run, that ghost believes it!
"Old Gu, what's going on?" General Zhang's face turned black. Where is this engine burning? Can it go through a 150-hour test run? Is this a fool?
General Gu’s face is also ugly: "You fools, have you made a mistake? This engine is a new engine we plan to produce from the factory for the new fighter equipment. Where is the one we tested? Take the one that we tested. Come out!"
Mr. Gu was already overwhelmed.
Who made the bad idea? Put this brand new engine in front of everyone, thinking that it will leave a good impression?
Looking for our test drive!
"Yes, yes, it's my fault. During this period of time, I've been on the test bench every day, making my head silly." The person in charge said.
"Where is the test drive?" General Zhang asked.
"Yes, in..." The person in charge is actually incoherent, and this seems to be problematic.
"Huh." It must be on the test bench.
General Zhang has been here several times. Of course, he knows where the test bench is. There is no need for the person in charge to say that General Zhang has already gone out.
The engine test run needs to be on the test bench. This thing cannot be in the room, otherwise, the huge noise will not be transmitted, and it will not be easy to control if there is an accident.
For example, in an engine experiment, a blade with tens of thousands of revolutions may break, one section breaks, and it flies out. It is definitely a sharp knife that can cut everything apart. If it is in the laboratory, it will cause damage. It's big.
Therefore, the test benches are all built on the open exterior, and they must be hung in the air.
Outside the factory, on the test bench, the engine has been placed on the ground. Several operators are hurriedly the nuts on the shell. In the experiment a few days ago, the blades of the first-stage compressor broke again and they need to assemble them. That new engine, so the blades here have not been replaced.
However, the new engine in the factory was recognized as a problem, and they had to quickly replace the broken blades.
The shell has not been disassembled yet, a large group of people have already arrived.
The engine is greasy and the exhaust nozzles are smoked black. This engine looks like an experiment, but what are these people doing?
General Zhang strode over and looked at the several blades in front. Some of them were already broken. The location of the break was quite clear, and it must have been broken recently.
Even the blades of the compressor can be broken off, just like that, can it be said that it has passed the 150-hour test run?
This 150-hour continuous test run generally refers to the continuous operation of the engine for 150 hours, even if you are cheating and temporarily stop for a few hours due to overheating in the middle.
However, in the test, the failure of the compressor blades also occurred, which means that the engine does not have the conditions for continuous operation. If it is installed on the aircraft and broken, then the fuselage will be interrupted. The pilot is absolutely dead. !
Just like that, you still need to provide the Raptors?
General Zhang's face was dark.
"This engine has been running for more than 150 hours. The blades have withstood severe tests and finally broke due to metal fatigue." At this time, the person in charge hurriedly introduced.
Qin Guan frowned, his face was also very ugly.
That's right, the same as I estimated in advance.
Turbofan VI is a difficult-to-birth project. The scientific and technical personnel of Han State have great hopes for it. However, there is a saying that the greater the hope, the greater the disappointment.
Because the project target is set high.
Think about it, right now, even the F100 engine built by the Yingguo people is faulty again and again. Can Han's own scientific research capabilities be comparable to that of the Yingguo people?
Project indicators are too high and exceed the level of technology, so various failures will inevitably occur.
This was also Qin Guan's initial concern. For the engine, reliability was needed.
Now, the situation is developing in a worse direction.
Qin Guan can understand the mood of the scientific and technical personnel. Turbofan VI is just like their children. They absolutely don't want to watch this project have problems, or even abort.
They want to keep this project and continue.
The original intention was good, but I was afraid of rushing to the doctor for a sudden illness, and finally started to engage in such crooked ways.
Even if it can run continuously for 150 hours, there can be no such major accident of compressor blade fracture, which shows that the design is problematic.
Qin Guan said, "This one has been rotated for 150 hours, and it seems that it is temporarily unavailable. So, isn't there a brand new one in the workshop? Put it over and let everyone see if it can be rotated for 3 hours. "
Qin Guan's proposal is very simple. It doesn't matter if this one is broken. Take out the new one and set it up for everyone to see.
"President Qin, you don't know anymore. The engine has just been built and needs various tests before it can be put on the bench. It doesn't work for ten days and a half." The person in charge is still delaying.
Of course it can’t be dragged out. It’s really dragged out and put on the bench. Needless to say, it will take 3 hours. After half an hour, there should be a malfunction. If it continues to run for half an hour, that’s thank God.
That's right, the reliability of this engine is still very poor, and there are still many problems. If these are exposed now, the consequences will be very serious.
"Really?" Qin Guan said: "This kind of engine, after leaving the factory, is sent to the army to be used as a backup engine. It takes ten and a half months to change the engine under field conditions."
"Let's go and see Spey. It can be turned from the production line and filled with oil. It will definitely take less than half an hour." Qin Guan continued.
"We develop the engine and put aside the performance indicators. At least, it needs to be able to run stably. This is related to the safety of the pilot's life."