Abstract:Helicopter wind tunnel tests are of high?speed, high?difficulty and high?risk. But manual operation in helicopter wind tunnel tests suffer low efficiency, poor security and high labor intensity. In order to solve these problems, we develop the test management system based on network data interaction and construct the triple safety protection system with combination of soft and hard ware. Further, the helicopter automatic trim system based on fuzzy control theory has been implemented. The intelligent control technology has been successfully applied to helicopter wind tunnel tests. The results show that the intelligent test system has advantages including flexible structure, convenient operation, high safety and reliability, good data quality and high test efficiency.