Issue 86

China: Jielong-3 Launches Satellite from Yellow Sea

5 Dec 2023: China Rocket Corp conducted its second Jielong-3 (Smart Dragon-3) sea-based launch from the ship Bo Run Jiu Zhou ~34 km off the coast of Guangdong. The payload was another test internet technology experiment satellite. It is in in a 904 x 922 km x 86.5° orbit. No further details regarding the satellite and…

5 Dec 2023: China Rocket Corp conducted its second Jielong-3 (Smart Dragon-3) sea-based launch from the ship Bo Run Jiu Zhou ~34 km off the coast of Guangdong. The payload was another test internet technology experiment satellite. It is in in a 904 x 922 km x 86.5° orbit. No further details regarding the satellite and its capabilities have been released. Launch Video.

– The China Academy of Launch Vehicle Technology (CALT), with funding support from China Rocket Corp (a CALT spin-off), developed the Jielong-3.

– The Jielong-3 is a four-stage solid-fuel rocket that can carry 1,500 kg of payload into a 500 km SSO.

Jielong-3 has close similarities in terms of lift capacity, length and diameter (2.65 m), payload fairing (3.35 m) and mass at liftoff as the ZK-1A rocket. CAS Space, a commercial rocket arm of the Chinese Academy of Sciences, developed the ZK-1A.

– In contrast to other Chinese solid rockets such as Chang Zheng 11 (Long March 11), this rocket is not “cold launched” from the barge. For Jielong-3, the ignition happens on the barge itself. It produces 2,000 kN of thrust at liftoff. It is launched on a grid, directly over the sea, using ocean water as a suppression system for the booster.

– The rocket sailed aboard Bo Run Jiu Zhou 1,300+ nautical miles over 5 days to the designated launch location in the South China Sea ~34km off the Guangdong Province coast. This was China’s first long-distance sea-based launch.

– Bo Run Jiu Zhou departed from sea launch facilities near Haiyang in the eastern coastal province of Shandong, on the Yellow Sea.

– The ship is equipped with a thermal tent to provide temperature and humidity stability for the Jielong-3 during transit. China Rocket Corp stated the rocket is capable of being transported even in sea state 4.

– The Jielong-3’s initial launch occurred nearly a year ago, on 9 Dec 2022. Also a successful launch, this one carried 14 satellites to orbit.

-With its second successful launch, China Rocket Corp announced Jielong-3 can now be produced via batch assembly of the rocket body, significantly reducing mission response time, compressing the compliance period, and meeting high-frequency launch demands.

– Jielong-3 is designed to complete satellite-rocket technical preparations, and launch within a week. CALT stated the system could launch up to 20 satellites at one time, and will help with rapid constellation deployment.

– CALT also announced their intent to conduct 5+ Jielong-3 launches in 2024.

Jielong-3 sea-based launch on 5 Dec 2023.

Jielong-3 launched approximately 34 km off the Guangdong coast.

Orbit of the test internet satellite launched by Jielong-3.

Support ship Bo Run Jiu Zhou before conversion to a launch platform (X/Twitter, NASASpaceflight).