本文件已被宣布为“稳定”，不再接受货币定期审查。用户负责验证参考资料和持续适用性或技术要求。新技术可能存在。起落架系统由最引人注目的工程技能组成。它对飞机成功设计的重要性可以媲美机翼和发动机。起落架系统由几个不同的工程学科组成，并不断受到公众关注，尤其是在安全方面。AIR4846的主要目标是展示各种有趣的齿轮、齿轮/飞机系统和专利的记录，并尽可能讨论经验教训和设计原因。因此，该文件不仅是一份历史记录，也是记录技术知识的一种手段，为未来起落架设计师带来实际利益。

This document has been declared "Stabilized" and will no longer be subjected to periodic reviews for currency. Users are responsible for verifying references and continued suitability or technical requirements. New technology may exist.A landing gear system comprises the most compelling assembly of engineering skills. Its importance to the successful design of an aircraft can be favorably compared with that of the aircraft's wings and engines. A landing gear system consists of several different engineering disciplines, and is continually in the public eye especially with regard to safety.The primary objective of AIR4846 is to present a record of a variety of interesting gears, gear/aircraft systems and patents, and to discuss wherever possible the lessons learned, and the reasons for the design. Thus, the document is not only a historical account, but a means of recording technical knowledge for the practical benefit of future landing gear designers.