Overview
ISO 7715:1985 - "Air cargo equipment - Ground handling and transport systems for unit load devices - Minimum requirements" defines minimum performance and compatibility requirements for ground handling and transport equipment used with air cargo unit load devices (ULDs) on civil wide-body freight aircraft. First published in 1985, the standard focuses on ensuring interface interchangeability between loaders, chassis (transporters) and aircraft for intermodal containers and other compatible unitized load devices.
Key topics and technical requirements
- Scope and objective: Minimum performance and compatibility requirements to ensure smooth interchange of ULDs between ground transport, loaders and aircraft main deck systems.
- Equipment types: Defines chassis types (Type 1 - 12.2 m, Type 2 - 6.1 m, Type 3 - flexible ULD chassis) and equipment classes (Class A - conveyorized decks; Class B - skeletal transporter chassis).
- Loader types: Type A (direct interchange) and Type B (loader-transporter) configurations and their interface roles.
- Dimensional and alignment criteria: Recommended deck/roll plane heights 1,219–1,575 mm (48–62 in), preferred maximum system height 5,715 mm (225 in), and loader roll/pitch adjustment ranges ±3°.
- Power and electrical interface: Powered Class A equipment requirements including recommended connector and voltages - North America: 230 V a.c., 3-phase (50–60 Hz) with an 8‑pin umbilical; Europe: 380 V a.c., 3-phase (50 Hz) with a 6‑pin umbilical. Conveyor speed recommendation 0.3 m/s (60 ft/min).
- Restraint and support: Minimum restraint methods for ULDs (bottom corner fittings per ISO 1161 or end slots per ISO 4117/4128/8323). Chassis must fully support or provide appropriate spacing and guide systems to prevent scuffing and damage.
- Operational and safety requirements: One-person, ground-level operation without tools; manual loading effort minima; environmental capability per ISO 6966; safety interlocks and emergency stop provisions.
- Performance: System design to meet aircraft turnaround cycles and ensure compatibility with aircraft doors, cargo envelopes, sill heights and facility features.
Applications and users
ISO 7715 is used by:
- Ground handling equipment manufacturers (chassis, conveyor decks, loaders)
- Airport ground operations and cargo terminal designers
- Airlines and cargo handlers deploying wide-body aircraft ULD systems
- Regulators and procurement teams specifying interoperability and safety for air cargo ground systems
The standard helps reduce equipment incompatibilities, improve turnaround efficiency, and lower risk of cargo or equipment damage.
Related standards
Keywords: ISO 7715, air cargo equipment, ULD, ground handling, transport systems, loader, chassis, interoperability, minimum requirements.
Open preview (PDF)Air cargo equipment — Ground handling and transport systems for unit load devices — Minimum requirements