Air Cargo Unit Load Devices – Load Distribution Model
|Publication Date:||1 September 2011|
This SAE Aerospace Standard (AS) defines an industry agreed reference model for load distribution on air cargo unit load device (ULD) bases, to reflect maximum allowable center of gravity (CG) eccentricity and ensure the maximum allowable area load is not exceeded.
The purpose of this document is to establish a common reference load distribution algorithm for:
a. comparable and repeatable ULD testing methods, or equivalent numeric simulations,
b. aircraft structure and cargo systems design assumptions, consistent with existing airframers practices,
c. definition of operators unit load devices utilization rules and pallet build-up training programs.
Field of Application:
This document applies to all types of unit load devices intended for use on board civil transport aircraft and airworthiness approved by TSO in accordance with the performance requirements and testing parameters of either AS36100 or, as applicable, its predecessor NAS 3610.
This document shall also apply to utilization of any non airworthiness approved unit load devices, such as "noncertified containers" as defined in AS1677B, of the same sizes, the utilization of which is controlled by the provisions of the aircraft type's Weight and Balance Manual and other airframe manufacturer's documents.