Long March 4B Height 0.91 meters 1:50 Disassembled Print Long March 4B Launch Vehicle China Aerospace

Long March 4B height 0.91 meters 1:50 scale print in parts Long March 4B launch vehicle China Aerospace

Long March 4B (code: CZ-4B) is a three-stage, normal-temperature liquid-propellant launch vehicle developed by Shanghai Academy of Spaceflight Technology, which belongs to China Aerospace Science and Technology Corporation, primarily used to launch Earth observation application satellites into sun-synchronous orbit

The Long March 4B is a rocket with greater carrying capacity developed based on the Long March 4A. Development of this rocket began in February 1989. On May 10, 1999, the Long March 4B successfully made its maiden flight, placing the "Fengyun-1C" and "Shijian-5" satellites into their intended orbits. As of November 20, 2021, the Long March 4B rocket had successfully launched 42 times, sending over 40 Chinese and international satellites into their intended orbits

The Long March 4B rocket's "one rocket, multiple satellites" launch technology has improved its carrying capacity, enabling it to meet the demand for multi-satellite launches and small satellite piggyback services, providing support for China to expand its commercial space launch market

At 09:22 Beijing time on September 3, 2024, China successfully launched the Yaogan-43 Group 02 satellite using a Long March 4B carrier rocket at the Xichang Satellite Launch Center. The satellite successfully entered its predetermined orbit, and the launch mission was a complete success. At 06:42 on November 14, 2024, the Ocean Salinity Probe satellite was launched by the Long March 4B Y-53 carrier rocket from the Taiyuan Satellite Launch Center. The launch vehicle performed normally, successfully placing the satellite into its predetermined orbit, and the launch mission was a complete success. At 12:12 on May 29, 2025, China successfully launched the Shijian-26 satellite using a Long March 4B carrier rocket at the Jiuquan Satellite Launch Center. The satellite successfully entered its predetermined orbit, and the launch mission was a complete success. On December 16, the Ziyuan-3 04 satellite was successfully launched

1. Sketch:

2. Main thruster one:

3. Main thruster two:

4. Main thruster three:

5. Main thruster four:

6. Main thruster five:

7. Main thruster six:

8. Main thruster seven:

9. Main thruster eight:

10. Main thruster nine:

11. Main thruster ten:

12. Completed view:

13. Comparison view: