Recently, it was reported that the æ¼-15 carrier-based fighter aircraft was suspected to have completed the catapult take-off on the first aircraft carrier electromagnetic catapult test machine in China. The news has not yet received an official response. The more optimistic view is that this means that China's future major technology of the large deck aircraft carrier has made significant progress, which is no less than the first flight of a new type of carrier aircraft. However, some experts pointed out that even if the first electromagnetic ejection is indeed achieved, it depends on whether the catapult is a prototype or an engineering prototype. The "first bomb" of the electromagnetic catapult is a good start, but it may take a long time to wait for the engineering and final loading of the aircraft carrier. The news from the network said that the ejection was completed at the electromagnetic catapult test site of a carrier aircraft base of the Chinese Navy. The catapult æ¼-15 fighter that strengthened the front landing gear not long ago was first exposed, and the progress was “surprisingâ€. Many netizens called this success "a great victory." Some analysts pointed out that the "major breakthrough" of the electromagnetic catapult will make the J-15 fighter jets capable of heavy take-off, and the bomb load and combat radius can be greatly improved, no less than the first flight of a new type of carrier aircraft. And large platforms such as ship-borne early warning aircraft will also be able to take off from the aircraft carrier, which is extremely significant. According to the network, at present, only China and the United States are conducting ground tests for large-scale aircraft carrier electromagnetic catapults. It is believed that the Chinese electromagnetic catapult test device is 120 to 150 meters in length and the effective track portion is about 80 meters. If the online news is true, such a large electromagnetic catapult, the successful ejection of the æ¼-15 heavy fighter, shows that the key technologies such as China's linear synchronous motor, disk alternator and high-power digital cycle inverter are close to comprehensive and practical. Chemical. The Global Times reporter called the Chinese naval expert Zhang Junshe to verify on the 9th. He said that he noticed the news on the network, but declined to comment on the relevant experiments and project progress. However, Zhang Junshe said that the electromagnetic ejection technology is an advanced aircraft carrier aircraft ejection technology that is currently being paid attention to and researched by the major navies including the US military. It can greatly improve the efficiency of aircraft carrier aircraft and improve combat effectiveness, but Americans The forerunners of technology still have a lot of technical difficulties to overcome. China will continue to pay attention to and study related technologies. In fact, in recent years, foreign media have repeatedly speculated on the news of China's electromagnetic catapult. On September 27 this year, the American technology magazine "Popular Machinery" reported that China is imitating the US military aircraft launching and take-off system, especially electromagnetic ejection. The revolution of this take-off system will have a huge impact on the Western Pacific. Chinese military expert Li Jie told the Global Times that China has basically mastered the main technology of steam ejection. Academician Ma Weiming from the Chinese Navy has disclosed that certain technologies of China's electromagnetic catapults are no less than the United States. It can be seen that China is continuing to promote the development of the use of catapults for aircraft carriers, and the development progress is relatively smooth. But in addition to the technical breakthrough of the catapult itself, if you want to install it on the ship, it will involve problems such as power problems and system integration, which need further argumentation. A Chinese military expert familiar with naval equipment told the Global Times reporter on the 9th that the current aircraft carrier aircraft mainly adopts two methods: skid takeoff and catapult takeoff. For the carrier aircraft with conventional take-off and landing technology, the advantage of ejection is obvious, which is a development trend of the large-deck aircraft carrier. The ejection takeoff is also divided into steam ejection and electromagnetic ejection. Compared with the steam ejector currently used by the US military, the advantages of electromagnetic ejection are obvious. According to experts, the electromagnetic catapult can be regarded as an oversized electromagnetic railgun. It has the advantages of small size, low requirements on the ship's auxiliary system, high efficiency, light weight, low operating and maintenance costs. First, it takes up less space in the aircraft carrier. Electromagnetic catapults do not require large steam boilers like steam catapults and complex pressure control pipes, valves, etc., which are much smaller in volume and weight than steam catapults. Second, the electromagnetic ejector is uniformly controllable relative to the steam ejector. Third, because it does not have a large number of high-pressure, high-heat, water-tight and airtight components like a steam catapult, the maintenance and repair of the electromagnetic catapult is much simpler. In addition, the energy conversion efficiency of electromagnetic ejection is higher than that of steam ejection, and there is less demand for fresh water. Experts said that at present, the news of the success of the first bomb of the electromagnetic catapult has not been officially confirmed, but the Chinese naval technical experts have disclosed the progress of electromagnetic ejection research, so the electromagnetic blasting test of the æ¼-15 carrier aircraft was successful. It doesn't seem to be a hole in the wind. However, even if the ejection is successful, it is still unknown whether it is in the prototype or engineering prototype. The aircraft carrier's electromagnetic catapult not only requires ejection, but also reliable, controllable, sustainable, large-volume, uninterrupted ejection operations, which is often more important than capable of ejection. This may be because Chinese domestic electromagnetic catapults need to be further solved. The problem. Since China's first domestic aircraft carrier will use a sliding deck similar to that of the Liaoning ship, even if China uses a catapult device, it must be installed on the next generation or next-generation aircraft carrier. Experts said that in the case of conditions, the use of electromagnetic ejection directly across the steam ejection program is a shortcut. After all, the inheritance of electromagnetic ejection and steam ejection technology is very small, not only the development of steam ejection can develop electromagnetic Ejection, the technical difficulties they need to overcome are not the same. However, Li Jie told the Global Times reporter that the direct use of electromagnetic catapults is of course the best, helping China to catch up with the world's most advanced level in aircraft carrier technology. However, in the case of a more thorough understanding of the steam ejection technology, it is a more sensible and reasonable option to apply this technology to the aircraft carrier first. After all, the United States does not currently fully grasp the technology of electromagnetic ejection, and is still conducting experiments. In addition to the technical breakthrough of the catapult itself, if you want to install it on the ship, it will involve problems such as power and system integration. KNL5-63 Residual Current Circuit Breaker
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Passing the "first bomb" of China's electromagnetic catapult 
Electromagnetic ejection has obvious advantages 
China has the conditions to develop electromagnetic catapults
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