Abstract: According to the unattended loading requirements of the new generation launch vehicles, auto-docking technology for the first stage fill-drain connector and zero-second quick detachment technology for the second stage fill-drain connector were proposed based on the analysis and summary of unattended loading connector technology at home and abroad. These technical solutions were verified to be reasonable and feasible by tests, and they had been successfully applied to the Long March 6A (LM-6A), laying a foundation for the unattended test and launch of the new generation launch vehicles.

Key words: background-color:#FAFAFA, color:#231F20, font-size:15px, ">launch vehicle, unattended, automatic docking, zero-second detachment