ISO 8267-2:2023

INTERNATIONAL ISO
STANDARD 8267-2
Fourth edition
2023-12
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 2023
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ii
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 . 2
4.5 Tow bar fit . 3
5  Retrofit option . 3
Bibliography . 5
iii
Foreword
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This document was prepared by ISO/TC 20, Aircraft and space vehicles, Subcommittee SC 9, Air cargo
and ground equipment.
This fourth edition cancels and replaces the third edition (ISO 8267-2:2019), which has been technically
revised.
The main changes are as follows:
— the normative and aircraft airworthiness references have been updated.
A list of all parts in the ISO 8267 series can be found on the ISO website.
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iv
Introduction
The purpose of this document 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.
In this document, the following verbal forms are used:
— “shall” indicates a requirement;
— “should” indicates a recommendation;
— “may” indicates a permission;
— “can” indicates a possibility or a capability.
Recommended criteria are, while not mandatory, considered to be of primary importance in providing
safe aircraft towing arrangements. Deviation from recommended criteria should only occur after
careful consideration, extensive testing, and tho
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