GB/T 38924.5-2020 is a key component of the environmental testing standards for civil light and small unmanned aircraft systems (with a takeoff weight ranging from 0.25 kg to 150 kg). This standard specifically defines the shock testing methods for unmanned aircraft systems (including both the aircraft and ground control stations), aimed at evaluating their ability to withstand shock environmental impacts during transportation, handling, and operational use. Its core content includes detailed test conditions, test equipment and instrumentation, comprehensive test procedures, protocols for test interruption and recovery, criteria for evaluating test results, and requirements for test reports. The "test equipment and instrumentation" mentioned in the standard typically refers to specialized equipment used to simulate and measure shocks, such as shock test platforms and accompanying measurement instruments like accelerometers. This standard serves as a critical basis for assessing the reliability and safety of light and small unmanned aircraft products under harsh environmental conditions.