飞行器.牵引杆附属接头的接口要求.第1部分:干线飞行器

[中文适用范围]： ISO 8267 的本部分规定了商用民用运输客机和货运飞机的传统三轮式起落架中前起落架上的牵引杆连接配件（当从前起落架执行牵引操作时）的接口要求。 其目的是通过飞机质量类别（决定拖杆力）实现拖杆连接配件接口标准化，以确保具有标准连接的单一类型拖杆可用于该质量类别内或接近该质量类别的所有飞机类型，从而协助运营商和机场装卸公司减少使用不同类型拖杆的数量。 ISO 8267 的这一部分适用于在规定的最大坡道质量范围内、投入使用或在其发布之日后设计的所有新干线飞机型号。 ISO 8267 的本部分适用于经 FAR/EASA-CS 第 25 部分认证且最大坡道质量大于 50000 千克（110000 磅）的干线商用运输飞机。 它不适用于经 FAR/EASA-CS 第 25 部分认证的适航飞机，但最大坡道质量 ≤ 50000 千克（110000 磅），由 ISO 8267-2 涵盖。 如果现有或预期的飞机类型系列连接两个质量类别，则对所有这些飞机类型使用单个牵引杆附件配件接口，并考虑在整个系列中使用较高质量类别的标准尺寸。 注：就实际情况而言，ISO 8267 的这一部分的定义是为了与相关质量类别中尽可能多的现有航空器类型兼容。 [外文原描述]： ISO 8267-1:2015 specifies the interface requirements for tow bar attachment fittings on the nose gear (when towing operations are performed from the nose gear) in conventional tricycle type landing gears of commercial civil transport passenger and freight aircraft. Its purpose is to achieve tow bar attachment fittings interface standardization by aircraft mass category (which determines tow bar forces) in order to ensure that a single type of tow bar with a standard connection can be used for all aircraft types within or near that mass category, so as to assist operators and airport handling companies in reducing the number of different tow bar types used. ISO 8267-1:2015 is applicable to all new models of main line aircraft within the specified maximum ramp mass range, entering service or designed after its date of publication. ISO 8267-1:2015 is applicable to main line commercial transport aircraft of airworthiness certified under FAR/EASA-CS Parts 25 with a maximum ramp mass of > 50 000 kg (110 000 lb). It does not apply to aircraft of airworthiness certified under FAR/EASA-CS Parts 25 but with a maximum ramp mass of ≤ 50 000 kg (110 000 lb), which are covered by ISO 8267‑2. Where a family of existing or contemplated aircraft types bridges two mass categories, use a single tow bar attachment fitting interface for all of them, and consider the use of the standard dimensions for the higher mass category throughout the family. NOTE As far as practical, this part of ISO 8267 was defined in order to be compatible with as many existing aircraft types as possible in the mass category concerned.