"The shape of our redesigned wing, compared with the previous design, the area of the newly designed main wing has increased by 6.24 square meters compared with the previous one, and because of the transformation of the smelting industry of the main material of the wing, under the premise of ensuring the strength of the wing, the weight of the wing has been successfully reduced, and the wing shape of the wing has been made more reasonable, and the wing area and lift of the An-70 have been greatly improved, and because of the modification of the wing shape, compared with the lift that the old wing can provide, The new wing is capable of providing an additional 15% more lift. ”

General designer of the Antonov Design Bureau: Petro? Babraev was briefing a group of leaders of the Alice Group, headed by Alice, on the most important project that the Antonov Design Bureau is now working on: the improvement plan for the An-70 medium-sized wide-body tactical military transport aircraft project.

While explaining, the old man Bablaev secretly observed Alice's expression, hoping that he could see from the change in the expression on Alice's face that his beautiful and noble boss was so satisfied with his work for nearly a year.

But not for long, Petro? Bablaev was disappointed, the expression on Alice's face was unusually calm, calm like a deep pool, so that you couldn't see her depth at all, as if it was like a black hole, you should never think of being able to see what was inside the black hole, and in the same way, you should not want to see anything on Alice's face at this moment What you want to know.

It's no wonder that Alice can become the head of such a large industry at such a young age, and it is not unreasonable to be able to do this. Look at the beautiful and delicate Alice and Jill, and look at your own chicken-skin-like aging skin, Pietro? Babraev sighed in his heart.

"What else can be improved?" Alice doesn't seem to see Pietro? Babraev secretly observed himself, and there was almost no obvious emotional inclination in his voice to Petro? Babraev asked.

"Oh, and of course," Alice's words made the distracted Petro? Babraev perked up his spirits and quickly gathered back his thoughts that were a little fluttering just now, "In addition to redesigning the wings and fuselage, we focused on improving the rotary propeller fan of the CV-27 used on the An-70 before. ”

"Previously, because of the processing accuracy of the processing equipment, we had limited processing capacity for the CV-27 pair of rotary propeller fans, so although we had a better and more efficient design scheme, we could only use relatively backward processing and production methods, and the production did not conform to the best pair of rotary propeller fans in our minds. However, after updating the high-precision processing equipment and the latest alloy processing technology provided by the group, the best wing surface shape of the rotor fan in our minds can finally be processed, the wing surface shape is similar to the forward swept wing of the Su-37 forward-swept wing technology verification aircraft that has just been tested in Russia, but the aerodynamic performance is more excellent, the work efficiency is also higher, and the efficiency of the rotary propeller fan has increased by 8% compared with the previous design. ”

Zhang Lan nodded frequently as he listened, and the shape of the four CN-27 pairs of rotating propeller fans on the previous An-70 medium-sized wide-body tactical military transport plane was somewhat reversed to the marine propellers.

"At the same time, we used the modular design and one-piece design concept, which greatly accelerated the construction progress and airframe strength of the aircraft while ensuring strength; In terms of fuselage design, we use various types of composite materials to further reduce the weight of the fuselage itself and improve the load capacity of the aircraft. ”

"After all these improvements, according to our calculations, compared with the carrying capacity of the previous An-70 aircraft, the maximum load capacity of the redesigned An-70 can be increased by 50 tons under the premise of the same range; And on the premise of ensuring that the load capacity remains the same, the range can be increased by 20%! ”…,

"In addition, we have also improved the aircraft's avionics system and cockpit display system, and improved the hydraulic system on the aircraft, compared with the C-130, our An-70 has more complete loading and unloading automation equipment, so the airport maintenance facilities are not required, and the adaptability to different levels of airports is stronger than the C-130 'air Hercules';"

"And because the An-70 has as many as 12 main wheels, and the weight shared by each main engine is only about half of the weight of each main engine of the C-130 'Air Hercules' transport plane, the landing performance of the An-70 surpasses that of the C-130, and it can easily take off and land on key and dirt runways."

"And because the cargo compartment of our An-70 is wider and taller than that of the C-130, it can also carry some large equipment that cannot be transported by the C-130, and even large vehicles such as the M2/M3 "Bradley" combat vehicle can be loaded in the cargo hold without being disassembled, and any improved MI09SP howitzer, 2S6M antiaircraft gun/missile mobile air defense system, and SA-11 launcher can be loaded into the An-70 cargo hold. ”

"After using the new system, the ease of use of the aircraft compared with the prototype of the previous design has been improved by at least 35%, the previous electro-mechanical instrument cockpit display system, now also replaced by a liquid crystal display, supplemented by the traditional electro-mechanical instrument display system, after updating the data link system and operating system software and hardware design, the original five-person cockpit now needs two people to complete the piloting work, and the same as the United States C-130J "air Hercules" Compared with the A-400M medium-sized transport aircraft being developed in Europe, the An-70 has many advantages over those two aircraft in terms of life-cycle cost and attendance! ”

"The only problem is that after these improvements, the cost of the An-70 has increased by $5 million, but despite this, compared with the C-130J and A-400M, both the purchase cost and the later use cost are much lower, and it can be said unceremoniously that as long as this aircraft can be officially put into use, it will become the most successful military medium-sized transport aircraft in the world. Compared to the same type of medium tactical military transport aircraft in Europe and the United States, our models are at least 20 years ahead of them! ”

Speaking of which, Petro? Babraev's face was full of excitement, and although in the end he seemed to be talking about the shortcomings of the An-70, he gave people the feeling that the shortcomings that this guy said were actually the advantages of this aircraft, and he was just showing off.

As a matter of fact, Petrobabraev could not be prouder of this excellent aircraft newly designed by his company, because compared with the C-130 "Air Hercules" medium-sized wide-body tactical military transport plane of the United States, which is being widely used in the world, the performance of the newly designed An-70 surpasses that of the C-130 by much more. It can be said that as long as the An-70 comes out, the name of the air Hercules will no longer belong to the C-130!

"Is this your plan for the new An-70?" Alice crossed her arms and looked at the huge picture projected by a large high-brightness engineering projector with a length of 6 meters and a width of 4 meters respectively, and asked Petro, the chief designer of the Antonov Design Bureau, who was explaining to herself beside her. Babraev asked.

"Yes," Pietro? Babraev nodded respectfully, without the slightest pride in his expression, for Alice's strength in aircraft design, Petro? In addition to admiration, Babraev is still impressed, because in the improvement design work of the An-70, his own miraculous boss actually put forward many amazing design improvement plans. Babraev also had to admire.

"Then, according to the current progress of work, do you estimate that when will the improved An-70 be able to complete its test flight and be officially put into use?" Alice thought for a moment and slowly asked Pietro? Babraev asked. …,

"Three years! As long as there are sufficient funds to ensure it, I guarantee that it will only take three years at most for the An-70 to complete all the test flights and improvement work and officially put it into active service. "When it comes to that, Pietro? Babraev said categorically, several confidently.

Three years? Zhang Lan was amazed in her heart: Is history really going to be changed beyond recognition by herself? In his memory, it seems that until he came back, the big guy An-70 was still a baby with a difficult birth, and the date of official service was still far away, and now Babraev actually told himself that this aircraft would be officially put into active service in three years, and three years later, wouldn't it be only 2004?

Suddenly, Zhang Lan remembered a joke: In the early 90s, the Russians said that their T-95 main battle tank would be ready for service in two more years, but the T-95 could not be found after two years; In the mid-90s, the Russians said that their T-95 main battle tank would be ready for service in two more years, but the T-95 could not be found two years later; At the beginning of the 21st century, the Russians once again said that their T-95 main battle tank would be ready for service in two more years, but the T-95 could not be found two years later. In the middle of the first decade of the 21st century, the Russians once again said that their T-95 main battle tank could be put into service in two more years, but after two years, the T-95 still could not be found. Not a lot of words

Zhang Lan was playing a small drum in her heart, quite bottomless, ......,