本航空航天推荐规程为飞机操作员和牵引车制造商规定了商用民用运输飞机常规三轮车式起落架前起落架上使用的无牵引杆牵引车的基本试验要求，其最大坡道重量介于8600 kg（19 000 lb）和50000 kg（110 000 lb）之间，通常被称为“支线飞机”。其目的是获得测试结果或等效的计算机建模，证明牵引车产生的载荷不会超过飞机前起落架和相关结构的设计载荷，降低前起落架的认证安全寿命极限，或以其他方式损害飞机的结构完整性和适航性认证。 本文件适用于在规定范围内用于商用飞机后推和维修牵引的所有无牵引杆牵引车。见下文第3节。它不适用于用于飞机运行（调度）牵引的牵引车。

The present Aerospace Recommended Practice specifies for airplane operator and tow vehicle manufacturers the basic testing requirements for towbarless tow vehicles to be used on the nose gear of conventional tricycle type landing gears of commercial civil transport aircraft with maximum ramp weight between 8600 kg (19 000 lb) and 50 000 kg (110 000 lb), commonly designated as "regional aircraft".Its purpose is to achieve testing results, or equivalent computer modeling, demonstrating that the loads induced by the tow vehicle will not exceed the design loads of the airplane's nose landing gear and associated structure, reduce the certified safe life limit of the nose landing gear, or otherwise compromise the airplane's structural integrity and airworthiness certification.This document is intended to be applicable to all towbarless tow vehicles to be used for push-back and maintenance towing of commercial airplanes in the specified range. See Section 3 hereafter. It is not intended to apply to tow vehicles used for airplane operational (dispatch) towing.