A brief analysis of landing gear overspeed protection design

To prevent flight crew from retracting or extending landing gear by mistake when aircraft is overspeed, set up a set of requirements according to relevant airworthiness regulations. Take some airplane as an example, the landing gear overspeed protection design could efficiently prevent flight crew from overspeed retracting or extending landing gear, though the safety requirement for the landing gear safety valve is too high. After an optimization, the landing gear system's error prevention performance is identical, landing gear system safety and reliability are improved and the cost of landing gear is reduced.