The Y-30 transport aircraft entered the stage of full-scale design and development.

For another research and development task from the military, Zhang Haiping notified Li Tianfeng by telephone, asking Tianfeng Technology Company to carry out the design and development of another transport aircraft.

For this transport aircraft, the military has requirements, not only like the Y-30 transport aircraft, such as being able to land on the field runway, with good low-altitude and low-speed performance, long life, high reliability and so on.

At the same time, Zhang Haiping also said that this transport aircraft will be an important auxiliary force in the military's strategic airlift, and at the same time, it will also be a research and development platform for various subsequent aircraft.

In these cases, it must be considered that on the basis of this transport aircraft, early warning aircraft, air tankers, electronic jamming aircraft, and even various military and civilian cargo aircraft can be derived.

The military did not issue official documents, and these requirements were also verbally stated by Zhang Haiping on the phone, and were only for Tianfeng Technology's reference.

But the development of this transport aircraft is a sure thing.

The two were on the phone, communicating and communicating on related matters.

Zhang Haiping said: "Mr. Li, then this matter is so decided, if nothing else, this transport aircraft is codenamed 'Yun-25', and it may be our military transport aircraft with the largest number of equipment in the future." ”

Y-25 transport planes!

There is an official code name before the development has begun, which shows how much the military attaches importance to this transport aircraft, Li Tianfeng thought in his heart, Yun 25 transport aircraft, not bad!

Li Tianfeng said happily: "Okay, Minister Zhang, it's decided." ”

In fact, there is no need for Zhang Haiping to put it forward, in Li Tianfeng's mind, Yun 25 is a very good platform. The size is moderate, and it is just right to derive many models.

The Y-25 can not only take off and land on the runway of a front-line airstrip to transport or airdrop military personnel and equipment to the battlefield, but can also be used to evacuate the wounded on the return flight.

On the basis of the Y-25, it can be modified and designed, and the modified Y-25 transport aircraft can be used to perform various tasks, such as electronic surveillance, air command, control and communications.

In addition, there are search and rescue and recovery, air refueling, special mission, meteorological detection, maritime patrol and air early warning. In addition, there are a large number of civilian types.

That is to say, the Y-30 transport aircraft is purely military in nature, and the future Y-25 transport aircraft is very versatile, not only can be used for both military and civilian purposes, such as for civilian freight, but also can be extended design and development, derived from many models.

Based on the fact that the Y-25 is such a transport aircraft, Li Tianfeng has more ideas in his heart, and is no longer limited to military use. It is hoped that it will be widely exported and widely used for civilian use.

So, Li Tianfeng said: "Minister Zhang, we will start the design and development of the Y-25 transport aircraft immediately, and come up with a design technical outline within half a month, but I have a small request, I hope the military can focus on it." ”

Within half a month, the design and technical outline of the Y-25 transport aircraft will be produced. Li Tianfeng is sure, because the Y-25 transport plane can basically be "scaled down" on the basis length of the Y-30 transport plane. There are many things to learn from.

Li Tianfeng had a little request, Zhang Haiping was slightly stunned, and immediately, Zhang Haiping said with a smile: "Mr. Li, it doesn't hurt to say anything if you have any requirements." ”

Both of them are old friends, and they don't need to sell anything. It can also be said directly, so Li Tianfeng did not beat around the bush and directly put forward his own requirements.

Li Tianfeng said: "Minister Zhang, the Y-25 transport aircraft is dual-use. There can be no export ban on such a transport aircraft, and I hope the military will consider this request. ”

The Y-30 transport plane, once successfully developed, will be the military's strategic airlift force, this transport plane is too powerful, Li Tianfeng knows, it will definitely not be able to export, this is the military's exclusive use, and it is still within the scope of strict secrecy.

But the Yun 25 is a little different, the Yun 25 transport aircraft is slightly smaller, with a loading capacity of about 100 tons, not only is it very adaptable, but it can also be used as a civilian cargo aircraft, presumably many countries want such a transport aircraft.

In addition, the export of transport planes is more relaxed than that of fighter planes, and if such a transport plane can enter the international market and be widely exported, it is naturally what Li Tianfeng hopes.

Zhang Haiping immediately understood what Li Tianfeng meant, Zhang Haiping laughed and said: "Mr. Li, I can't be the master of this matter, I will report to the leaders, but in my personal opinion, there should be great hope for this matter." ”

The military already has the Y-30 transport plane, and the export of the Y-25 transport plane will not be so strictly restricted, and Zhang Haiping also knows this, so Zhang Haiping said that there is great hope.

The two negotiated everything on the phone, and after ending the phone call with Zhang Haiping, Li Tianfeng even remembered that the design of the Y-25 transport plane came to mind.

………

After being summoned by Li Tianfeng, Lei Yong rushed over from the base in the south of the city and entered Li Tianfeng's office, Lei Yong said: "Boss, you are looking for me." ”

Li Tianfeng motioned for Lei Yong to sit down by himself, and then, Li Tianfeng said: "Mr. Lei, how is the design and development of the Y-30 transport aircraft?" ”

Lei Yong said: "It has all been rolled out and entered the stage of comprehensive design and research and development in full swing, and in addition, your design sketches have been sent to the relevant design offices." ”

In order to ensure the success of the development of the Y-30 transport aircraft as soon as possible and as soon as possible, Li Tianfeng personally drew a large number of design sketches.

In terms of structural strength design alone, Li Tianfeng drew more than 20 design sketches, many of which were marked with the main design dimensions and design requirements.

A few months ago, Li Tianfeng considered the design and development of the Y-30 transport aircraft, in Li Tianfeng's mind, the design plan was mature, and the design sketches began to be drawn earlier, and before the formal design outline came out, Li Tianfeng drew a large number of design sketches.

These design sketches are not only structural strength design sketches, but also involve various aspects, such as aerodynamic design, cargo compartment design, landing gear design, cabin design, power system design, avionics system design and so on.

These design sketches will enable everyone to avoid a lot of detours, which is equivalent to pointing out the direction of design, coupled with Li Tianfeng's guidance in the design and development process, the design and development of the Y-30 transport aircraft, it is estimated that there will not be any major design difficulties and thorny design problems.

At present, the design and development of the Y-30 fighter is in full swing, and Li Tianfeng nodded with satisfaction.

Li Tianfeng said: "Mr. Lei, I came to you this time, mainly because we received another research and development task from the military. ”

"Oh." Lei Yong soon became interested, and immediately said with great interest: "Boss, the military wants us to develop an aircraft again?" ”

Li Tianfeng said: "Yes, it is still a transport aircraft, a transport aircraft with a carrying capacity of about 100 tons, and the code name of this transport aircraft is Yun 25......."

Li Tianfeng said in detail, including the problems and matters that need to be paid attention to in the design and development of the Yun-25, what are the special requirements, some main design parameters and so on.

The Y-25 transport plane, according to Li Tianfeng's idea, has a maximum load capacity of about 100 tons, which is slightly smaller than the C-5 "Galaxy" transport aircraft of the Americans.

However, the overall performance of the Y-25 and the level of design technology will be above the C-5 "Galaxy" transport aircraft, after all, the American C-5 "Galaxy" transport aircraft was developed in the 60s of the last century, and now it is the 21st century.

The Y-25 transport aircraft, with two turbofan 30 transport aircraft, has a range of more than 8000 km, and if it is refueled in the air, the range will be further increased.

A range of 8,000 kilometers is enough for transcontinental flights, and you must know that the maximum range of the C-5 transport aircraft is only 5 or 6 thousand kilometers.

The take-off weight does not exceed 280 tons. The carrying capacity is about 100 tons, full of fuel, and the take-off weight does not exceed 280 tons, which requires the Y-25 transport aircraft to be both strong and lightweight, and will use a large number of non-metallic materials, such as "Hercules" materials and so on.

Li Tianfeng explained the design requirements and main parameters of the Y-25 transport aircraft in detail one by one, and then said: "Mr. Lei, take half a month to come up with the design technical outline, is there a problem?" ”

Lei Yong said confidently: "Boss, there is no problem!" ”

Seeing Lei Yong so confident, Li Tianfeng smiled happily.

………

Beijing, military building.

Zhang Haiping was reporting to Mr. Wei, Zhang Haiping said: "Chief, Tianfeng Technology Company has full confidence in the design and development of the Y-25 transport aircraft, but Mr. Li has a small requirement. ”

Mr. Wei said: "If he has any requirements, let's listen to them." ”

Zhang Haiping said Li Tianfeng's request, and after listening to it, Mr. Wei smiled and said with a smile: "This Li Tianfeng, the Yun-25 has not yet been developed and the export is considered." ”

After thinking about it, Mr. Wei said: "We already have the Yun 30 super large transport plane, the Yun 25, as he wishes, allow exports, we no longer restrict, nor do we ban exports." ”

"However, we also have a small requirement, the export type of Y-25 transport aircraft, comprehensive performance and technical content, must be lower than the Y-25 transport aircraft we use."

The military-specific type is naturally an upgraded and strengthened version, and as for the export type, it must be a simple version. That's what Mr. Wei meant.

However, if the Y-25 transport aircraft is good enough, even in the simplified version, it will be very good, very good, certainly much better than those in service.

Zhang Haiping naturally understood what Mr. Wei meant, and Zhang Haiping immediately said: "Chief, I think there is no problem, the Y-25 transport aircraft provided to us by Tianfeng Technology Company must be the best and the most outstanding, in addition, I will inform Mr. Li of your requirements." ”

In fact, there is no need for Zhang Haiping to tell Li Tianfeng that Li Tianfeng also has such an awareness and plan, and the military's special Y-25 transport plane must be the most outstanding.

The export type is the Y-25A, and the military-specific type is basically the same as the export Y-25A in hardware, but the software will definitely be much better, such as avionics system, control system, radar system, etc., compared with the export type, it will be much more advanced.

Yun 25 transport aircraft, Tianfeng Technology Company has full confidence that the development has been successful, Mr. Wei is very happy, and there is even a rare hint of joy on his face.

………

Today's two watches, the first one is sent! (To be continued.) )