All-system Concept Test Firing of Cargo Spaceship's Propulsion System Achieved Success

The first all-system concept test firing of the cargo spaceship’s propulsion system for China’s Manned Space Program was carried out recently in order to examine the system’s functions of propulsion and propellant refilling,and the joint use of the two subsystems.The test firing consisted of engine ignition and propellant topping.The engine ignition simulated the in-orbit working modes of the cargo spaceship,such as orbital transfer,rendezvous and docking,attitude control and deorbit.During