Chapter 1429

As soon as this remark came out, the people on the scene could not control it any more. There was no way. The amount of information about Tang Lili's remark was too large. Many experts in the expert group and the leaders of the Navy had not enough brains.

However, Tang Lili did not care about this, and went on to say: "I just said that the core aircraft of wd-72e heavy-duty aero-engine to be used in fc-23 heavy-duty carrier based fighter is hx-30-27-c, which is only the entry-level version of hx-30-27 series.

Although h-zb-600 series ceramic matrix composites are also used; The new Ni based Ti re NB HF alloy, namely the alloy X-1 material of China's take-off and the 0.15mm film cooling hole process and other materials and manufacturing technology, but because the core of our positioning of wd-72e heavy-duty aero-engine is high reliability and high service life, we use mature products that have been tested for many years or partially widely used in the materials and manufacturing technology.

Because of this, hx-30-27-c does not pursue the ultimate performance. Instead, it uses 1800 Kelvin as an entry-level index to apply it to the carrier based aircraft with high reliability requirements.

As the real core model of hx-30-27, hx-30-27-e will further increase the temperature in front of the turbine by 1973 Kelvin, that is, 1700 ℃. For the improved wd-72e heavy-duty aero-engine that we are developing, the cruising thrust of wd-72g will reach 10 tons, the afterburner thrust will be increased to 14.8 tons, the engine mass will be 1.4 tons, and the thrust to weight ratio will be 10.5, And the three-dimensional vector device is set at the tail nozzle, which can fully meet the needs of the next generation of combat aircraft and the third generation of combat aircraft! "

"Comrade Tang Lili, you China Tengfei have started to develop wd-72g engine?" A naval chief asked in surprise. Not only this chief, but almost all the others present stared at the stage with incredible eyes.

Although people in the industry have been clamoring that the power of the aviation industry should take the lead in recent years, on the one hand, whether it can be achieved or not is another matter. Because of this, although the industry has been talking about increasing the development of the next generation of aero engines all day long, none of them really take action.

After all, now some domestic units can't even take out the ordinary high thrust aero-engine, let alone the next generation of heavy-duty aero-engine with higher technical level. Compared with such high investment, high risk and long-term implementation, it's not only easy to play tricks, but also can win the favor of leaders and public opinion. Why not.

In such an atmosphere, China's take-off suddenly said that it had started the substantive research and development of the next generation of aero-engine, which made many experts and scholars present feel like ghosts.

How can someone really invest a lot in the next generation of aero engines?

Is it true that someone is going to make a fuss, but act in a sullen way?

Someone really made it to the top?

My God, what kind of monster is China's take-off!

In the face of those surprised eyes, Tang Lili, like insulator, turned a blind eye. Instead, she shook her head at the Navy chief who asked the question: "in fact, we have already started the development of wd-72g engine, such as the blisk technology used in this engine, As early as 15 years ago, we developed the linear friction welding process.

There is also alloy X-5 used in wd-72g engine, in which the metal rhenium is increased from 0.13% of alloy X-1 to 0.85%, so that the Ni based Ti re NB HF alloy can work continuously for 5870 hours at 1500 ℃.

Combined with the high temperature resistant ceramic coating and the 0.08mm ultra precision film cooling hole technology, the wd-72g engine can run continuously for more than 8000 hours at 1700 ℃ in front of the turbine, and at the same time, it can ensure better fuel economy, The fuel consumption rate of wd-72g engine is 0.47 kgkwh in cruise state and 0.88 kgkwh in Afterburner thrust state.

However, this is not the best fuel economy among a series of aero engines developed by US based on hx-30-27 core aircraft. The cruising fuel consumption rate of wd-70j-neo turboprop engine used on yun-15mini shipboard multipurpose transport platform built by our shipboard aircraft development team for aircraft carrier formation is 0.27kgkwh, But the maximum power reaches 5800 kW, that is 7885 HP; Continuous output power also has 4200 kW, or 5710 HP.

Of course, the weight of the wd-70j-neo turboprop engine with improved power is 1.2 tons compared with that of similar models. Fortunately, our power to weight ratio is controlled well, which is 4.8. Therefore, we can easily rely on two wd-70j-neo turboprop engines at the long-range takeoff and landing point of Kuznetsov class aircraft carrier to reduce the empty weight to 18.75 tons; Yun-15 mini, with a maximum take-off weight of 32.84 tons, is fully loaded with oil and sent to the blue sky... "

"Comrade Tang Lili, I have to interrupt you again..." before Tang Lili finished speaking, the old expert who asked the question first and sat in the center of the expert group of the Central Committee of the Central Committee of the Central Committee of the Central Committee of the Central Committee of the Central Committee of the Central Committee of the Central Committee of the Central Committee of the Central Committee of the Central Committee of the Central Committee of the Central Committee of the Central Committee of the Central Committee of the Central Committee of the Central Committee of the Central Committee of the Central Committee of the Central Committee of the Central Committee of the, He asked very carefully, "what is the use of the yun-15 Mini shipboard multi-purpose transport platform you just mentioned?"

"It depends on the specific planning of the Navy. Anyway, our yun-15mini shipborne multi-purpose transport platform is an aviation product of a small number. Its basic positioning is similar to that of the C-2 Greyhound shipborne transport aircraft of the US Navy, and its adaptability is not high. Therefore, we only build a multi-purpose platform and do not further develop it, After all, we also have to consider the cost. Of course, if the target customers want to, the yun-15mini shipboard multi-purpose transportation platform can fully meet the following requirements... "

With that, Tang Lili went to the laptop in front of her and replaced it with a new ppt. Then she pressed the remote control in her hand, and the big screen behind her quickly switched several pictures. Soon she stopped on a real picture of an aircraft with a short and thick fuselage, flat wings and four small vertical tails. Then a row of small words appeared on the picture.

A few people with good eyes under the stage quickly read out the small words: "the fuselage is 18.9 meters long, the wingspan is 26.6 meters, the height is 5.56 meters, the empty weight is 18.75 tons, the maximum take-off weight is 32.84 tons, the practical lift limit is 12000 meters, the maximum level flight speed is 687 kmh, the maximum range is 3200 km, and the maximum endurance is 7.5 hours. The platform is safe and reliable. It can be used as a shipborne early warning aircraft, shipborne air refueling aircraft, and a carrier based air tanker in the future A variety of refitting platforms for carrier based special aircraft, such as carrier based transport aircraft, carrier based antisubmarine patrol aircraft, etc... "