Chapter 749: This is also a turbofan

Although the benefits of the Lightning Replacement PW-1120 are touted, this does not mean that this engine can rest easy, and its counterpart rival has the same great potential, and even far exceeds it in all aspects.

In this way, the tone changed, and he said: "Of course, it is also a good choice to replace the EJ-200, but the EJ-200 is nearly 1 meter shorter than the turbofan 10 engine in terms of size, and the weight is at least 200KG lighter, and the fuel consumption is even better than the PW-1120, the only problem is that this engine has not yet been finalized, and even if it is finalized, I am afraid it will be the first to be supplied to the Typhoon fighter, so"

Even if this is said very directly, it is clear that everyone is not too optimistic about the replacement of the EJ-200 engine, after all, the EJ-200 at this time has only completed the first bench operation not long ago, and it is together with the turbofan 12 engine of the Republic that the first bench test was completed in 91, and this is obviously not feasible to catch up with the time node of the lightning.

However, at this time, the executives of Rolls-Royce seemed to pass by, and heard the discussion of their company's latest masterpiece EJ-200 engine, as a well-deserved king of the mid-thrust turbofan, the developers of the EJ-200 have reason to be moved and proud of it.

Walking over, a sentence was inserted quite abruptly: "I'm sorry, I seem to have heard you talking about the EJ-200 engine just now, I am the deputy chief engineer of this engine, if you have any questions, I am still very happy to answer!" ”

Looking at the deputy chief engineer of the EJ-200 engine who came to strongly insert into the topic, everyone was stunned, and some sighed that this girl was really lucky today, saying that Cao Cao Cao would arrive.

The consultants in Greece heard a deputy chief engineer of the EJ-200 engine, of course, they were overjoyed: "Hello, it turned out to be the deputy chief engineer of the EJ-200 engine, it just so happens that we are now discussing some problems with this engine, and we plan to study whether it is possible to install it on the JF-17 lightning fighter, I don't know what your R&D personnel think about this?" ”

Where did you think that you would just come out and walk around, and you would be able to encounter such a good thing, did anyone fancy the excellent performance of the EJ-200? Yes, yes, this opportunity must be seized, no matter what the situation is, at least the lightning fighter mentioned in this sentence does have great potential, if it is replaced with an EJ-200 engine, it will be a perfect match!

Hurriedly nodded and found an empty place to sit down by himself: "I have to admit that your vision is very good, the EJ-200 selected is a very good engine, and the lightning is also a very good light fighter, this time the big order of 150 in Egypt is definitely a rare big project in recent years, its only shortcoming now is that the engine has dragged down this excellent aircraft, but if it is replaced with EJ-200, it will be perfect, The 9.2-tonne thrust guarantee puts the aircraft in the top ranks of the third generation of light fighters. ”

Then, there were all kinds of reciting the performance data of the EJ-200, and the performance of the EJ-200 really made people drool, probably saying everything that should be said, and at this time the technical director of Embraer Airlines spoke.

"Well, this is indeed a very good engine, so one of the most important questions we want to know now is when the design of this engine, which was tested for the first time last year, will be completed, that is, it can be provided to us for test flights, and the engine must be seen in about three months, and now the time is still relatively urgent."

When the question is when the engine that everyone is most concerned about will be delivered for test flight, then the EJ-200 has nothing to say, and it will get the engine and put it into test flight work within three months, isn't it embarrassing!

"This, isn't this time too urgent, it is definitely impossible to get the engine for test flight within three months, even the first batch of engines provided for the test flight of the Typhoon fighter will be possible after 95 years, and it is absolutely impossible to get the engine test flight within three months now. If you are really in such a hurry to change to a better engine, I think the RB-199MK-104 engine should also be able to be used, this latest RB-119 engine can reach a maximum thrust of nearly 8 tons, and the fuel consumption figures are also very good. ”

After hearing Rolls-Royce say that the EJ-200 engine will not be able to be put into the lightning test flight until at least 95 years, Xie Lianfa nodded in agreement, and the turbofan 12 engine that is also the same 91 bench test is also expected to be delivered to the J-18 test flight in the first half of 95, and the J-18 test flight work before that is replaced by the turbofan 10. So there's no problem with this, it's understandable.

But Xie Lianfa understands that they are one thing, and the actual needs are another, the lightning has now been finalized in the basic model, and everyone is waiting to get a good enough engine for the lightning to be installed in the new test flight, but there is no time to wait for Rolls-Royce's EJ-200 engine to mature after three years.

Not to mention Embraer and Northrop, the promoters of this lightning, the Greek side first disagreed: "This is not good, we can't wait that long, and the EJ-200 is still a brand new engine, we don't want to take too many risks, so we can only express regrets." ”

Shrugging his shoulders, it was also very wise to choose to abandon the EJ-200, which looked quite good, and instead return to reality, choosing the more extensive and reliable PW-1120 engine, at least this engine has been finalized for several years.

But apparently, Rolls-Roy is not willing to give up the Lightning as a rising light fighter star, and the final struggle must be made: "Well, since I can't wait for the EJ-200 engine." So RB-199 is actually not bad, aren't you going to think about it again? The performance of this engine has been very stable and can meet your needs. ”

The salesman at the vice president level of Northrop sitting next to him was not going to be silent, and said lightly: "Although the performance of this engine is stable, the structure based on the three-rotor design is too complicated, and the thrust is only 7.9, the so-called close to 8 tons is a complete joke, and we want an engine with a thrust of at least 9 tons this time, understand?" ”

As the Greek consultant on the side smiled and nodded in agreement with this statement, the deputy chief engineer of the EJ-200 project department of Rolls-Royce knew that it was no fun, and the thrust of the RB-199 was too different from the indicators required this time, which was completely inappropriate!

However, now he still has a lot of questions in his mind, such as: "Why? There is probably no other choice for a turbofan engine capable of reaching a maximum thrust of 9 tons except our EJ-200, of course, the M-53 engine of Snecma can also be considered one, but is it possible for you to use this engine? ”

And at the next moment, when I saw a staff member with the Pratt & Whitney logo on his chest coming from the side, everything was clear.

How can you forget about Pratt & Whitney, although the PW-1120 engine with a maximum afterburner thrust of 9.3 tons is a turbojet engine, but the bypass ratio of 0.15 or the deflation ratio (continuous deflation turbojet) still clearly tells everyone that this can actually be regarded as a turbofan engine with an ultra-small bypass ratio! (To be continued.) )