Lao Zhang, what you said is not right, Attack-2 is a drone, according to what you say, a drone is not an airplane?" As soon as the air force leader called Lao Zhang finished speaking, a unit commander who was familiar with him quipped.

Lao Zhang's old face full of vicissitudes was not embarrassed at all, but he just squinted at the joker, and said indifferently: "I mean someone pilots the plane, do you understand? It's a manned plane, hey~~ It's useless to tell you so much, and you don't understand it." ”

One sentence choked the joker to the point of speechlessness, and Lao Zhang didn't have time to deal with the man, but looked at the WD-30S turbofan engine in front of him with burning eyes, not only Lao Zhang, but also the heads of other units of the Air Force, and even some of the leaders of the Navy.

No way, it's really the data of the WD-30S turbofan engine that allows these people to see the huge potential, 586daN, that is, 586 kg of thrust, this indicator is not outstanding compared to the general turbofan power.

But if you add a bypass ratio of 2.86, a thrust-to-weight ratio of 4.12 and an overall weight of 142 kg, it's different.

Because this kind of small turbofan engine usually has a bypass ratio between 1 and 2, and cannot exceed 2.5 at most, otherwise the overall mass will not be controllable, and it is easy to cause overweight, which will affect the thrust-to-weight ratio.

Therefore, in the world, the thrust-to-weight ratio of the turbofan engine installed in the integral cylindrical body of the Attack-2 is generally about 3.2 to 3.5, such as the F-121 turbofan engine used in the American Tomahawk cruise missile.

The MS400 turbofan engine used in the Soviet X-59 cruise missile increased the thrust-to-weight ratio to a high level of 4.7, but correspondingly, the service life was also greatly reduced, only more than 20 hours, which was enough for the X-59 cruise missile to fly for a full range, and it did not have recyclability.

The specific indicators of the F-121 turbofan engine on the American Tomahawk are not as violent as the MS400 turbofan engine, but the advantage is that the output is stable, and the daily exercises or test firing can also be recycled and reused.

However, from this point of view, the WD-30S turbofan engine does not have many advantages, because whether it is the F-121 turbofan engine of the United States or the MS400 turbofan engine of the Soviet Union, the total mass of the turbofan engine does not exceed 100 kilograms, and the total thrust is also below 400 kilograms, and the service life is not very long, because it must be ready to die with cruise missiles at any time, and it is not cost-effective to have such a long service life.

On the other hand, the WD-30S turbofan engine, with a service life of at least 1,000 hours, is obviously not born for missiles, but it is precisely because of this that Lao Zhang and others will pay more attention.

Because both the bypass ratio and the thrust-to-weight ratio are similar to the data of the domestic intermediate training aircraft selected by the Air Force and naval aviation.

Speaking of the matter of the trainer aircraft, the chief officers of the aviation units of the Navy and Air Force also had a headache, and the development project of the intermediate trainer aircraft in the mid-80s was originally selected by the TFE731 turbofan of the American Honeywell Company, but at the end of the 80s, due to well-known reasons, the intermediate training aircraft project and the S-70 helicopter spare parts of the Army Aviation encountered difficulties.

It's hard to buy it, but the price is so expensive that people can doubt their lives, and no one's money is blown by the wind, not to mention that the country is not rich now, so there is no choice but to run aground.

This is not good news for the navy and air force aviation units, which already lack professional training planes, but the country cannot do it for a while, and the navy and air force are in a hurry and have to wait.

As a result, they waited and waited, so they saw the WD-30S turbofan engine, the bypass ratio of 2.86, the thrust-to-weight ratio of 4.12 and the TFE731 turbofan engine in this exercise organized by the headquarters.

The only thing lacking is thrust, the WD-30S turbofan engine is 586 kg, while the TFE731 turbofan engine reaches 1.6 tons, a difference of three times.

But the problem is that the size and weight of the TFE731 turbofan engine are almost two to three times that of the WD-30S turbofan engine, if Tengfei Group can improve it on the basis of the WD-30S turbofan engine, it should be no problem to meet the intermediate training aircraft, at least it can solve part of the emergency transition.

At the same time that Lao Zhang and the others became eager after listening to the basic data, the head of the headquarters learned the basic situation from several technical staff officers, and he made up his mind to go to the Tengfei Group after the exercise was over.

Having made up his mind, the head of the headquarters did not care about Lao Zhang and others getting together to discuss the WD-30S turbofan engine, let alone tangled in this issue, no way, there is no professional in the field of aviation development on the spot, rather than wasting time here, it is better to save up to Tengfei Group to ask Zhuang Jianye for a good deal.

Therefore, the head of the headquarters simply mentioned a few words, and after getting a few ambiguous answers, he turned the topic over and continued to ask Hou Yuejin: "The inaccurate aiming of the portable air defense missile has been solved, and what is the problem with the failure of the other electronic jamming? The report of the Blue Army said that the control signal disappeared the moment the attack-2 UAV released the interference, but the attack-2 UAV was more flexible than before, what is going on?"

Except for Lao Zhang, who was really attracted by the WD-30S turbofan engine, and was discussing there in a low voice, everyone else was attracted by the words of the head of the headquarters, but this time it was useless for Hou Yuejin to answer, and the leader of the Second Artillery Corps with straight eyes before said in a low voice: "It should be an optoelectronic terrain matching system, right?"

Hearing this, Hou Yuejin immediately nodded with a chicken peck: "Yes, that's it." ”

"Then there is nothing to say, relying on photoelectric image conversion to identify the path, there is no electromagnetic wave escape, how can this interfere?" The leader of the Second Artillery Corps nodded, and then turned to the head of the headquarters: "Terrain matching technology is the key technology of cruise missile navigation and guidance, we have achieved some results in joint research with dozens of domestic scientific research units, and Tengfei Group has also participated, doing photoelectric image terrain matching technology."

To put it bluntly, it is to compare the photoelectric impact with the pre-input electronic map, and then control the flight of the aircraft according to the comparison situation, the laser research institute under the Tengfei Group has a deep attainment in the field of optoelectronics, and has made great progress in the photoelectric terrain matching, we are preparing to install several types of low-speed missiles at the end, and they are still testing, but I didn't expect them to have been applied to the attack-2 UAV, which is really ......"

The leader of the Second Artillery Corps shook his head and smiled bitterly as he spoke, no way, he really felt that the conversion rate of the Tengfei Group really made him not know what to say, how long has it been since they issued the low-resolution photoelectric terrain matching civilian license to the Tengfei Group? It seems that it has been less than a month, and this is used for the attack-2 UAV.

After earning a wave of research and development funds for the aerospace department, he took the results to slaughter the airborne troops in a blink of an eye, looking at the fiery eyes of the heads of other services and arms, it is estimated that the Tengfei Group will have to stab people several rounds with the knife that slaughters people, and this efficiency is simply ......