BS M 89:1996

Committees responsible
National foreword
Introduction
Specification
1 Scope
2 Normative reference
3 Definitions
4 Objectives
5 Systems classification
6 Calculation formula
7 Test methods
Figures
1 Representation of some parameters
2 Variation of 'shape factor' with aspect ratio for
    rectangular plates
3 Determination of the distance from the centre of
    gravity to the pivot point

Gives criteria for determining stability of aircraft loading and servicing equipment including wind loads, together with systems and formula relating to stability. It also gives methods of testing.

1.1 This International Standard specifies:

1. the criteria to be used to determine stability of aircraft loading and servicing equipment, including wind loads;
2. the classification of systems recommended to achieve stability;
3. the formula to be used for calculating steady-state wind stability;
4. the recommended test methods applicable to equipment.

1.2 The intent of this International Standard is not to specify equipment design, but rather to define uniform criteria, calculation and testing methods in order to provide a safe work environment under all predictable circumstances for the users of aircraft loading and servicing equipment.

1.3 This International Standard specifies the worldwide requirements recognized by aircraft and equipment manufacturers as well as airlines and handling agencies.

In addition, it shall be applied with due reference to national governmental regulations of the country where the equipment is to be operated.

1.4 This International Standard applies to aircraft loading and servicing equipment, typically but not exclusively defined as follows:

• container and pallet loaders (see ISO 6967 and ISO 6968);
• catering trucks (see ISO 10841);
• passenger stairs (see ISO 12056);
• maintenance and fueling access platforms, when operated in a static position on an aircraft.

1.5 This International Standard does not apply to:

• forklifts;
• aircraft de-icers;
• any equipment with rotating booms,

and more generally any equipment the normal mode of operation of which includes moving in the elevated position.