YJ-18
Specifications
| Designation | YJ-18 |
| Also Known As | CH-SS-N-13 |
| Type | Anti-ship cruise missile with supersonic terminal sprint |
| Manufacturer | China Aerospace Science and Industry Corporation (CASIC) |
| Operators | China |
| Length | 6 m |
| Diameter | 0.5 m |
| Weight | 1500 kg |
| Wingspan | 1.2 m |
| Range | 540 km |
| Speed | Mach 0.8 cruise / Mach 3.0 terminal sprint |
| Max Altitude | 10 km |
| Guidance | Inertial + active radar seeker terminal |
| Warhead | 300kg semi-armour-piercing |
| Propulsion | Solid-fuel rocket motor |
| First Tested | 2010 |
| First Deployed | 2015 |
| Unit Cost | ~$2-3M |
Overview
The YJ-18 is a Chinese anti-ship cruise missile with a supersonic terminal sprint, designed to defeat shipborne air defenses. With a range of 540km and a speed of Mach 0.8 during cruise, it can reach its target quickly and accurately. The missile's supersonic terminal sprint at Mach 3 makes it extremely difficult to intercept. The YJ-18 is China's primary ship-launched anti-ship missile and has been deployed on various Chinese warships and submarines.
Development History
The YJ-18 was developed by the China Aerospace Science and Industry Corporation (CASIC) in the 2000s. The missile's development was motivated by the need for a more advanced anti-ship capability to counter the increasing threat of enemy warships. The YJ-18 underwent several tests and trials before its first deployment in 2015. Since then, it has become a key component of China's naval arsenal, with deployments on various warships and submarines, including the Type 052D and Type 055 destroyers, and the Song and Yuan-class submarines.
Technical Deep Dive
The YJ-18 uses a combination of inertial and active radar seeker guidance systems. The inertial system provides initial guidance, while the active radar seeker takes over during the terminal phase, allowing the missile to home in on its target with high accuracy. The missile's supersonic terminal sprint is achieved through a solid-fuel rocket motor, which provides a significant increase in speed during the final stages of flight. The YJ-18's semi-armour-piercing warhead is designed to penetrate the hulls of enemy warships, causing significant damage and potentially sinking the target.
Combat Record
Tactical Role
The YJ-18 plays a key role in China's naval doctrine, providing a long-range anti-ship capability that can be used to attack enemy warships at sea. The missile's supersonic terminal sprint makes it particularly effective against ships with advanced air defenses, as it can quickly close the distance and strike the target before it can be intercepted.
Strengths & Weaknesses
Variants
| Variant | Differences | Status |
|---|---|---|
| YJ-18A | The YJ-18A is an upgraded version of the YJ-18, with improved guidance and propulsion systems. | In development |
| YJ-18B | The YJ-18B is a variant of the YJ-18 with a longer range and improved warhead design. | In development |
| N/A | No other variants exist | N/A |
| N/A | No other variants exist | N/A |
Countermeasures
The YJ-18's supersonic terminal sprint and active radar seeker guidance system make it difficult to intercept. However, enemy warships can use electronic countermeasures to disrupt the missile's guidance system, or use point-defense systems to intercept the missile during its terminal phase. Additionally, enemy warships can use decoys or chaff to saturate the missile's radar seeker and reduce its accuracy.
Analysis
Conflict Impact
The YJ-18 has significant implications for the Iran conflict, as it provides China with a long-range anti-ship capability that can be used to attack enemy warships at sea. The missile's supersonic terminal sprint and active radar seeker guidance system make it a formidable weapon system that can be used to counter enemy naval superiority.
Future Outlook
The YJ-18 is expected to remain a key component of China's naval arsenal in the future, with ongoing development and upgrades to improve its guidance and propulsion systems. The missile's effectiveness in real-world scenarios will depend on various factors, including the effectiveness of enemy countermeasures and the ability of Chinese warships to launch and guide the missile.
Analyst Assessment
The YJ-18 is a highly capable anti-ship missile that provides China with a significant advantage in naval warfare. Its supersonic terminal sprint and active radar seeker guidance system make it a formidable weapon system that can be used to counter enemy naval superiority.
Frequently Asked Questions
What is the range of the YJ-18 anti-ship missile?
The YJ-18 has a range of 540km, making it a long-range anti-ship capability that can be used to attack enemy warships at sea.
What is the speed of the YJ-18 anti-ship missile?
The YJ-18 has a cruise speed of Mach 0.8 and a terminal sprint speed of Mach 3, making it a highly maneuverable and difficult-to-intercept missile.
What is the guidance system of the YJ-18 anti-ship missile?
The YJ-18 uses a combination of inertial and active radar seeker guidance systems, providing high accuracy and allowing the missile to home in on its target with precision.
What is the warhead of the YJ-18 anti-ship missile?
The YJ-18 has a 300kg semi-armour-piercing warhead, designed to penetrate the hulls of enemy warships and cause significant damage.
What are the weaknesses of the YJ-18 anti-ship missile?
The YJ-18 has several weaknesses, including its limited range during the supersonic terminal phase, its vulnerability to electronic countermeasures, and its limited number of deployments and lack of combat experience.