ISO 8267-2:2019

Aircraft — Tow bar attachment fittings interface requirements — Part 2: Regional aircraft

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. 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. 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 may 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 under FAR/EASA-CS Parts 25 with a maximum ramp mass of ≤ 50 000 kg (110,000 lb). It does not apply to — aircraft airworthiness certified under FAR/EASA-CS Parts 23 as commuter category aeroplanes, and — aircraft 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 8267‑1. 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, be it part of this document or ISO 8267‑1, throughout the family. NOTE As far as practical, this document was defined in order to be compatible with as many existing aircraft types as possible in the mass category concerned.

Aéronefs — Exigences d'interface des ferrures d'attache de barre de tractage — Partie 2: Aéronefs régionaux

General Information

• Status: Withdrawn
• Publication Date: 19-Sep-2019
• ICS: 49.100 - Ground service and maintenance equipment
• Technical Committee: ISO/TC 20/SC 9 - Air cargo and ground equipment
• Drafting Committee: ISO/TC 20/SC 9 - Air cargo and ground equipment
• Current Stage: 9599 - Withdrawal of International Standard
• Completion Date: 06-Dec-2023

Relations

• Revised: ISO 8267-2:2023 - Aircraft — Tow bar attachment fittings interface requirements — Part 2: Regional aircraft
• Effective Date: 06-Jun-2022
• Revises: ISO 8267-2:2015 - Aircraft — Tow bar attachment fittings interface requirements — Part 2: Regional aircraft
• Effective Date: 13-Aug-2016

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 8267-2
Third edition
2019-09
Aircraft — Tow bar attachment fittings
interface requirements —
Part 2:
Regional aircraft
Aéronefs — Exigences d'interface des ferrures d'attache de barre de
tractage —
Partie 2: Aéronefs régionaux
Reference number
ISO 8267-2:2019(E)
©
ISO 2019

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ISO 8267-2:2019(E)

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ii © ISO 2019 – All rights reserved

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ISO 8267-2:2019(E)

Contents  Page
Foreword .iv
Introduction .v
1 Scope . 1
2  Normative references . 1
3  Terms and definitions . 1
4  Requirements . 2
4.1 Fitting location . 2
4.2 Towing loads . 2
4.3 Aircraft mass categories. 2
4.4 Fitting configuration, dimensions and clearances . 3
4.5 Tow bar fit . 3
5  Retrofit option . 4
Bibliography . 5
© ISO 2019 – All rights reserved iii

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ISO 8267-2:2019(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents shoul
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