The rise of a great power: starting with military industry

Chapter 582: J-7 (asking for monthly ticket)

Trainer aircraft can be said to be the foundation of an aviation unit!

China has two trainer aircraft, one is the 'Song of the Sea Swallow' CJ-6, and the other is the 'Pesticide Machine' YJ-5.

The CJ-6 trainer aircraft was launched in 1958 and was manufactured by Hongdu Aviation Industry to replace the Yak-15. The CJ-6 trainer aircraft adopts a three-point front, thin-skinned metal semi-monocoque structure, with a maximum level flight speed of 287 kilometers per hour and a range of 640 kilometers.

The only drawback is that the 'CJ-6' trainer aircraft weighs more than one ton, but its engine power is only 1 horsepower.

'Yunjiao 5', also known as 'Yun-5ding', is a navigation trainer aircraft modified by Factory 320 based on the requirements of the Air Force. It has added communication, aiming and bombing equipment.

In addition to these two trainer aircraft, Guizhou Aircraft Industry Corporation is developing the 'J-7' advanced trainer aircraft, which made its first flight in 1985; Hongdu Aviation Industry Corporation is cooperating with Pakistan to develop the 'K8' trainer aircraft.

Liu Tao went to Guifei in person, and then he saw the 'J-7'. The 'J-7', which is about to be finalized, looks quite similar to the J-7, but think about it, it will be next year. The 'J-7' was originally developed based on the J-7 as a two-seat advanced jet trainer. It would be normal if it did not resemble the J-, and it would be abnormal if it did not.

Yu Ximing, chief designer of the Guizhou Aircraft Industry Corporation's First Design Institute, explained it to Liu Tao personally. Yu Ximing is also the chief designer of the J-7.

"The J-7 uses a triangular wing with a small aspect ratio and a large swept angle, a nose air intake with a large slenderness ratio fuselage, a fully swept horizontal wing and a receding flap. The leading edge of the wing has a swept angle of 57°, a relative thickness of 4.2% at the wing root and 5.0% at the wing tip, and the airfoil is a ЦАГИ-C9C double-convex supersonic symmetrical airfoil." Yu Ximing introduced the aerodynamic layout of the J-7. "The J-7 aircraft has a two-seat cockpit with the canopy opening to the right, and the rear seat is the instructor's cockpit. The rear cockpit is equipped with a periscope and an in-flight communication system to facilitate communication between students and instructors. The J-7 systems equipped in batches with aircraft control and information display are each equipped with one set in the front and rear cabins, and the main wheels use tubeless tires."

"In addition, it is also equipped with a flight fault simulation system and a flight status recorder. The former is operated by the instructor and can easily simulate various possible faults that may be encountered in flight conditions. The latter is used to record the actual flight status of the aircraft for research and summary after returning."

介绍完气动布局，于希明介绍动力航电：“动力装置采用一台黎阳发动机厂的涡喷-7B（WP-7B）发动机，最大推力43.15千牛，加力推力59.82千牛。最大航速2100公里/小时，最大航程1459公里。机上电子设备包括226型测距雷达、SM-8AE瞄准具、CT-3电台、BDP-4B水平仪和LZ-2-II组合式罗盘。”

Liu Tao nodded. The J-7 trainer retained the J-7's relevant combat equipment and external devices, which also meant that in addition to training pilots, the J-7 also had certain combat capabilities.

In terms of weapons, it can carry both the 'Piercing' series of air-to-air missiles and rocket launchers, as well as the Type 30-1 30mm machine gun.

The 'J-7' is considered an advanced trainer aircraft, filling the gap in China's lack of advanced trainer aircraft.

But to say it is good is far from it.

Because the shortcomings of the 'J-7' are also obvious: its range is too short, its take-off and landing speed is too fast, the rear seat visibility is poor, and it is difficult for trainees to operate.

Liu Tao ordered the production of a new J-7 trainer and he participated in the production process.

All of Guizhou Aircraft Industry's resources are concentrated on the production of this J-7 trainer. After all, the official document from above has come down, and the entire 011 Aviation Base has been assigned to Panshan Group, and Liu Tao is their top leader.

This time when Liu Tao and Li Weimin arrived, the first thing they did was to settle all the wages and payments owed to the workers in the factories of the 011 Aviation Base, which was undoubtedly a great way to win people's hearts.

In some factories, wages have been in arrears for a long time.

This move won the hearts of the entire 011 Air Base.

Not to mention, Panshan Group has a production base in Guizhou, and everyone has heard about how good the treatment is.

Guifei carried out Liu Tao's words to the letter.

It took a full month, with Liu Tao's participation, to produce a brand new J-7 trainer aircraft.

Liu Tao placed his hand on the J-7 trainer aircraft and looked at the virtual panel in the corner of his eye.

[Item: J-7]

【Manufacturer: Liu Tao】

[Item Level: LV1 (0/10)]

[Upgrade Points: 300]

[Item status: intact, analyzable]

Looking again, there was no red dot on the virtual panel, so it was clear that the J-7 was qualified. Looking at the manufacturer, Liu Tao was not surprised. As long as he participated, even if he participated very little, the system would default to him as the manufacturer.

This J-7 trainer will next be tested by a test pilot.

Liu Tao, on the other hand, followed suit and learned how to fly.

Only 300 upgrade points are far from enough to upgrade this J-7 trainer.

He has to fly this J-7 trainer and accumulate experience so that he can continuously upgrade it, and the upgrade points are to use the best steel on the blade.

Having personally flown the J-7 trainer, Liu Tao experienced for himself why the J-7 is said to be difficult to operate.

Because it is really difficult to operate!

Even if there were the best pilots as instructors to teach Liu Tao personally, Liu Tao would still find it difficult.

The J-7 trainer is specially used to train pilots for the J-7 and J-8 aircraft. It is so difficult to operate, which means it is not easy to train pilots.

And the range is indeed short, with a maximum range of 1459 kilometers. In fact, if weapons are mounted, the range is less than 1000 kilometers.

If it is during combat, it would be a short-legged duck.

As for speed, it's just so-so.

Fortunately, Liu Tao just wanted to fly this J-7 trainer to accumulate experience and upgrade.

An aircraft hangar at the airport as the Spring Festival approaches.

This hangar has been classified as confidential, and no one can enter it without Liu Tao's permission.

Liu Tao placed his hand on the J-7 trainer aircraft and looked at the virtual panel in the corner of his eye.

[Item: J-7]

【Manufacturer: Liu Tao】

[Item Level: LV1 (12000000/10)]

[Upgrade Points: 300]

[Item status: intact, analyzable]

"System, upgrade, upgrade direction, service life!" Liu Tao muttered to himself.

Another thing that people criticize about the J-7 advanced trainer aircraft is that its service life is only 720 hours.

The reason why the service life is so short is actually because the service life of the original basic J-7 is low.

歼7是华夏仿制苏联的米格21战斗机，苏联原装米格21战斗机设计使用寿命1200小时，每500小时一次大修，最终经过500+500+200结束飞机寿命。

华夏仿制米格21形成的歼7，因为材料、加工、生产技术比不上苏联，歼7的使用寿命只有苏联原装的米格21使用寿命的60%。

A service life of 720 hours is definitely not a good enough standard for a trainer aircraft, because a trainer aircraft needs to have a long service life and a high frequency of deployment so that it can train pilots better and faster.

Therefore, Liu Tao's first choice when upgrading the J-7 trainer aircraft was the aircraft's service life.

(End of this chapter)