China contra-rotary ramjet engine breakthrough (Mach 6 from standstill); DF-27/YJ-20 ASBM; JF-22 Mach30 wind tunnel; sea-launched ASBM threats
Key Questions
What is the CAS/Xu Jianzhong prototype?
The CAS/Xu Jianzhong prototype is a breakthrough contra-rotary ramjet engine that enables seamless transition from turbine to ramjet mode for jets and missiles, achieving Mach 6 from standstill. It supports advanced propulsion for hypersonic systems. This development challenges US propulsion capabilities.
What are the capabilities of China's DF-27 and YJ-20 missiles?
The DF-27/27A is a hypersonic anti-ship ballistic missile reaching Mach 8.6 with a range of 5-8,000 km, posing threats to US carriers. The YJ-20 ASBM is expected for reveal in September 2025 and targets naval assets. Both leverage hypersonic glide maneuvers to evade defenses like Aegis.
What is the JF-22 wind tunnel and its significance?
The JF-22 is China's Mach 30 hypersonic wind tunnel, operational since May 2023, capable of simulating 15GW explosions for DF/YJ reentry tests, far surpassing the US LENS II at Mach 7. It enables advanced hypersonic testing that dwarfs US infrastructure. This facility supports China's lead in hypersonic simulations.
How does China's sea-launched hypersonic ASBM threaten the US Navy?
China tested a hypersonic anti-ship ballistic missile from a destroyer, using DF-17-like glide maneuvers to evade Aegis defenses and potential GPI/Japan counters. It directly challenges US carrier groups. This sea-launched capability enhances China's naval hypersonic edge.
What other hypersonic technologies is China developing?
China is advancing the CJ-1000 scramjet engine and leveraging simulations like T1200 alongside JF-22 for reentry vehicle tests. These efforts address propulsion challenges and support missiles like DF-27 and YJ-20. All are in developing status, positioning China ahead in the hypersonic arms race.
CAS/Xu Jianzhong prototype: seamless turbine-ramjet transition for jets/missiles; DF-27/27A Mach8.6 (5-8k km anti-ship); YJ-20 ASBM (Sept 2025 reveal, US carrier threat); sea-launched hypersonic ASBM from destroyer (DF-17 glide maneuvers evade Aegis, GPI/Japan counters); CJ-1000 scramjet; JF-22 Mach30 (15GW explosions, dwarfs US LENS II Mach7) for DF/YJ reentry sims; leverages sim/T1200. Challenges US propulsion/infra.