
Long March 10B: China's Reusable Rocket Breakthrough
#GS-3 #Science & Technology #Space #Current Events #International #Reusable Rocket Technology
Why in News
- China successfully achieved its first reusable rocket landing at the **Wenchang Commercial Space Launch Site**.
- During this test, the **Long March 10B** booster made a precise sea-based recovery after stage separation.
About Long March 10B Rocket
- The **Long March 10B** is an advanced, next-generation medium-to-heavy lift launch vehicle with a reusable first-stage booster.
- It serves as a core pillar of China's modern space infrastructure, designed to lower space access costs through vertical descent and specialized sea retrieval.
- State-owned **China Aerospace Science and Technology Corporation (CASC)** researched, developed, and launched this rocket.
- The main goal of the **Long March 10B** program is to eliminate the high economic barriers of single-use rockets.
Key Technical Features
- This vehicle can carry payloads of up to **16 metric tonnes into Low Earth Orbit (LEO)**.
- After separation, nitrogen thrusters flip the booster while grid fins guide and stabilize it during atmospheric descent.
- Real-time engine throttling generates counter-thrust, which slows the descending booster for a controlled hover above the recovery platform.
- Instead of landing legs, the booster uses specialized hooks to catch a suspended wire net on an automated vessel.
- After capture, safety cables and locking mechanisms secure the booster against swinging to protect it from rough sea conditions.
Strategic Significance
- The **Long March 10B** technology supports China's heavier lunar launch systems, which strengthens its goal of landing astronauts on the Moon by **2030**.
- Reusable rockets can sharply lower launch costs, helping China deploy large satellite constellations and compete with Western broadband networks.