On December 3, Korea defense development agency and Hanhua group jointly announced hycore ）Conceptual design of hypersonic cruise missile. This is South Korea's first hypersonic cruise missile project. It is planned to test fly in 2022 and complete pre research in 2024. Subsequently, South Korea will develop land-based hypersonic cruise missiles on its basis, or compatible with sea-based platforms, which will form an important supplement to South Korea's military deterrence capability. Conceptual design model of Korean "Haike" hypersonic cruise missile Technical details were disclosed It is reported that the South Korean "Haike" hypersonic cruise missile is 8.7 meters long and weighs 2.4 tons. It will be launched by the mobile vertical launch system of the improved "northern sky Guardian" - 2C ballistic missile. The missile is equipped with two-stage rocket booster, dual-mode scramjet, mission computer, inertial navigation system and telemetry equipment. According to the design, the first stage booster adopts a 10 ton thrust vector controlled solid rocket, which can push the missile flight speed to Mach 1.2 within 12 seconds, and the missile position is adjusted by the thrust vector control system to realize maneuvering flight. The two-stage booster can accelerate the "Haike" hypersonic cruise missile to Mach 6.2 and an altitude of about 19.8 km. The size and shape of the secondary booster are similar to that of the South Korean tactical surface to surface ballistic missile, which has a diameter of 0.61 meters, a range of 180 kilometers and can carry a 454 kg warhead. The analysis shows that the flight speed and altitude of South Korea's "Haike" hypersonic cruise missile are expected to reach the design value. After leaving the secondary booster, the scramjet on the "Haike" hypersonic cruise missile began to work to cruise at least Mach 5 and finally complete the strike mission. The conceptual design is similar to the x-51 On the whole, the South Korean "Haike" hypersonic cruise missile is similar to the American X-51A "wave rider" hypersonic cruise vehicle. The latter is jointly funded by the advanced research projects agency of the US Department of defense and the US Air Force Research Laboratory to carry out the experimental prototype research of cruise missile powered by dual-mode scramjet. In 2013, the X-51A achieved a maximum flight speed of Mach 5.1 in flight test, and a record high flight duration of 240 seconds. Based on the technical achievements of X-51A, In 2015, the US air force launched the "hypersonic inspiratory weapon concept" (hawc) project to promote the prototype research of hypersonic cruise missiles. In 2020, the US air force launched the research on the model of hypersonic cruise missiles based on the hawc project. The flight speed of the US Air Force's hypersonic cruise missiles is above Mach 5 and the range is said to be greater than 1000 km. South Korea's "Haike" The hypersonic cruise missile uses the same dual-mode scramjet as the X-51A, and the flight speed setting value is similar. Therefore, foreign media compare the Korean "Haike" hypersonic cruise missile with the American x-51. However, considering the late start of hypersonic technology in South Korea, the specific performance of "Haike" hypersonic cruise missile is unknown, and it is difficult to reach the technical level of American hypersonic cruise missile. South Korea intends to rely on the "Haike" hypersonic cruise missile to solve the problems first and form a strategic deterrent to the outside world. At present, South Korea is assembling the first "Haike" hypersonic cruise missile. The South Korean defense development agency plans to manufacture and test two of the missiles in 2022 and 2023, and then develop hypersonic missile prototypes based on them, but the specific plan has not been determined. Operational use is beginning to take shape Under the background of increasingly tense international situation, the rapid development of "Haike" hypersonic cruise missile is very important for the development of South Korea's national defense. In terms of operational capability, South Korea's "Haike" hypersonic cruise missile, based on the existing booster, launch system and fire control system, has the potential to quickly change to operational missiles. In the future, the missile will be controlled by the South Korean Army missile command. Together with South Korea's "northern sky Guardian" - 2C and "northern sky Guardian" - 4 ballistic missiles, the missile will carry out ground or sea strike missions, and has the rapid strike capability against land and sea high-value targets. In addition, South Korea is currently developing the second batch of kdx-3 aegis destroyers. The destroyer can carry missiles of the same size as the "Haike" hypersonic cruise missile. The analysis shows that in the future, South Korea may further develop ship to ship "Haike" hypersonic missiles to form land-based and sea-based hypersonic comprehensive strike capabilities, which has an important impact on improving South Korea's military deterrence and strike capabilities. Hypersonic missile flies at Mach 5 and has strong mobility. It can quickly penetrate the opponent's defense system and achieve the purpose of combat. For the holder country, it is not only an important strategic deterrent, but also a "sharp knife" to attack the opponent's high-value targets. In recent years, in addition to the United States, Russia and other world military powers stepping up the development of hypersonic weapons, India, North Korea and South Korea have also successively announced hypersonic missile projects under research, aiming to seize hypersonic heights and form strategic deterrence or advanced strike capabilities. Although the real level of hypersonic missile technology in South Korea is unknown, there is no doubt that it will have a significant impact on the international environment and deserve close attention. (outlook new era)