Composite fairing assists Chang Zheng 2D rocket satellite internet technology test
At 12:00 on April 1, 2025, the Long March 2D carrier rocket ignited and took off at the Jiuquan Satellite Launch Center, and then successfully sent the satellite Internet technology test satellite into the predetermined orbit, and the launch mission was a complete success.
The Long March 2D rocket was developed by the Eighth Academy of China Aerospace Science and Technology Corporation. It is a normal temperature liquid two-stage carrier rocket with single-star and multi-star launch capabilities for different orbital requirements. Its sun-synchronous orbit carrying capacity is 1.3 tons.
The satellite conducted an in-orbit test of mobile broadband direct satellite technology for the first time, laying the foundation for the future direct communication between ground mobile terminals and satellites, and can solve the network coverage problem in remote areas and oceans.
Through the space-ground network integration experiment, the coordinated development of satellite Internet and traditional ground communications will be promoted, and the construction of a global seamless coverage communication network will be accelerated.
In this mission, the Long March 2D rocket successfully applied a 3.8-meter diameter composite satellite fairing for the first time at the Jiuquan Satellite Launch Center. This type of fairing adopts lightweight design and advanced material technology, and has achieved three core breakthroughs compared with metal fairings of the same size:
1. Effectively expand the satellite payload envelope space and significantly improve mission adaptability;
2. The electromagnetic wave transmission performance is greatly improved, enhancing the reliability of wireless communication links;
3. The inner surface is smooth and easy to clean, meeting the requirements of high cleanliness aerospace environment and reducing the risk of excess materials.
This launch is the 567th flight of the Long March series of launch vehicles, which continues to set a high success rate record and demonstrates the maturity of China's aerospace technology. The successful operation of the technology test satellite provides key data support for the construction of a global satellite Internet system, and is expected to be more widely used in emergency communications, the Internet of Things, aviation and navigation in the future.