本AIR的目的有两个:1）对飞机前轮转向和定心系统进行描述性总结，2）对各种飞机制造商和用户遇到的问题和“经验教训”进行讨论。本文件涵盖军用飞机（陆基和舰基）和商用飞机。随着新飞机和/或新的“经验教训”可用，本文件将不断更新。

The intent of this AIR is twofold: 1) to present a descriptive summary of aircraft nosewheel steering and centering systems and 2) to provide a discussion of problems encountered and "lessons learned" by various airplane manufacturers and users.This document covers both military aircraft (land-based and ship-based) and commercial aircraft. It is intended that the document be continually updated as new aircraft and/or new "lessons learned" become available.