飞机

[中文适用范围]： 本文件规定了商用民用运输飞机传统三轮起落架前起落架（从前起落架进行牵引操作时）牵引杆连接配件的接口要求。本文件适用于在其发布日期后投入使用或设计的所有在规定的最大坡道质量范围内的新型支线飞机。它不适用于之前在役的支线飞机型号，这些飞机型号的牵引杆连接配件种类繁多。然而，为了方便此类飞机在机场运行，描述了一种简单的改装，可以使某些在役配件与符合本文件的牵引杆头兼容。本文件适用于最大坡道质量≤50 000 千克（110 000 磅）的适航认证的支线商用运输飞机。它不适用于：——适航认证为通勤类飞机的飞机； — 经认证为最大坡道质量 > 50 000 公斤（110 000 磅）的主线飞机的飞机适航性，符合 ISO 8267-1 标准。 [外文原描述]： This document specifies the interface requirements for tow bar attachment fittings on the nose gear (when towing operations are performed from the nose gear) of conventional tricycle type landing gears of commercial civil transport aircraft. This document is applicable to all new models of regional aircraft within the specified maximum ramp mass range which enter service or are designed after its date of publication. It does not apply to previously in-service regional aircraft models, which present a considerable variety of tow bar attachment fittings. However, a simple retrofit modification is described that can make certain in-service fittings compatible with a tow bar head in conformity with this document, where deemed appropriate in order to facilitate operation of such aircraft types at airports. This document is applicable to regional commercial transport aircraft airworthiness certified with a maximum ramp mass of ≤ 50 000 kg (110 000 lb). It does not apply to: — aircraft airworthiness certified as commuter category aeroplanes; — aircraft airworthiness certified as main line aircraft with a maximum ramp mass of > 50 000 kg (110 000 lb), which are covered by ISO 8267-1.