At 9:17 on August 15, Blue Arrow Aerospace’s Suzaku-2 improved Yaosan-3 carrier rocket failed to launch, and just half a month later, officials completed the fault reset. At that time, the Zhuque-2 improved Yaosan-3 carrier rocket was ignited and took off at the Dongfeng Commercial Aerospace Innovation Test Area. The first-stage flight was normal, the first-stage and second-stage separation was normal, and after the second-stage ignition, all systems worked normally and the fairing separation was normal.
258 seconds after the rocket took off, the voltage of the secondary servo power supply bus dropped abnormally, causing the rocket's attitude to become unstable. The autonomous safety control system on the rocket self-destructed, and the flight test mission failed.
After the failure occurred, the company immediately set up a zeroing working group to conduct a detailed analysis and investigation of the failure of the Yaosan-3 flight test mission, and organized flight telemetry data analysis, test simulation, and troubleshooting verification tests.
The entire zeroing process is transparent, leaving no risks or doubts. During the process, the progress of the zeroing work is continuously reported to higher-level supervision and management units, task customers and important relevant parties.
After flight telemetry data analysis, detailed simulation calculations, and strict troubleshooting tests, the flight failure of the improved Zhuque-2 Yaosan-3 was located atThe high-power 450V DC power supply bus of the secondary execution loop driver experienced an arc discharge short circuit in the low-pressure environment of the rocket's secondary flight, causing the control actuator to malfunction and causing the flightLose.
On the afternoon of August 30, the Blue Arrow Aerospace Organization held a review meeting on the zero flight failure of the Zhuque-2 improved Yao-3 launch vehicle. After questioning and deliberation by the review experts, they unanimously agreed:
The problem is accurately located, the mechanism is clear, the fault has been reproduced, the improvement measures are effective, and inferences have been made, it can be returned to zero.
