What is DF-21D? A Chinese anti-ship ballistic missile “carrier killer”
DF-21D
DF-21D is the first anti-ship ballistic missile (ASBM) developed by China. Conventional ballistic missiles hit fixed targets on land; DF-21D is aimed at moving American aircraft carriers. It is designed to prevent the approach of the US Pacific Fleet to Taiwan from a distance of 1,500 km. Therefore, it is called the “Carrier Killer.” It is the leading weapon in China’s Anti-Access/Area Denial (A2/AD) strategy.
What is DF-21D?
DF-21D (Dong Feng-21D) is the first anti-ship ballistic missile (ASBM) produced by the Chinese company CASIC. NATO code CSS-5 Mod-4.
The reason this weapon is revolutionary is as follows:
- Conventional ballistic missiles hit fixed targets on land (city, command center, airbase). The coordinates of the target are known before launch.
- DF-21D is designed to hit a moving aircraft carrier. An aircraft carrier can move in open sea at a speed of 50 km/h; at the moment of launch, it is unknown where it will be after a minute.
- The solution: the missile detects and locks onto a large metal target (aircraft carrier) at sea using radars and electronic optical sensors in the front during re-entry into the atmosphere.
- At this stage, the speed reaches Mach 10+; the ship has very little time to escape.
Strategic Objective: “Anti-Access/Area Denial” (A2/AD). China wants to make the approach of U.S. aircraft carriers to Taiwan impossible to deter potential U.S. intervention in the Taiwan issue. The range of the DF-21D at 1,500 km reaches the first island chain (Japan-Taiwan-Philippines).
U.S. defense analysts describe the DF-21D as a “game changer” — assumptions about U.S. naval operations in the Pacific have changed with the emergence of this weapon. In response, the United States continues to develop the SM-3 / SM-6 Standard missile family; U.S. aircraft carriers are shifting to using long-range munitions and drone platforms to avoid entering the direct strike zone.
Its larger brother with a longer range, DF-26 (4,000+ km), is known as the “Guam Killer” — it can reach U.S. bases in Guam. The family continues to expand.
