This project is a simulation and teaching laboratory for model construction with B737 as the background. The system mainly includes hydraulic power source, hydraulic component test bench, B737 main landing gear structure body, landing gear retraction and braking console. The power of the landing gear retraction and brake console is derived from the hydraulic power source and output via the hydraulic assembly test bed, which can provide up to 3000 psi and 30 L/min of power. The hydraulic oil is aviation blue oil. After the input control table, it is divided into two ways: brake (no loop, with display) and retraction (loop with back pressure).

After the system is built, the whole process test of landing gear braking and recovery can be completed, and various landing gear faults can be simulated. It is mainly used for practical training, experiment and teaching in aviation colleges and universities.