Overview
ISO 6702-2:1991 is an internationally recognized standard developed by the International Organization for Standardization (ISO) that defines the requirements for on-board weight and balance systems (OBWBS) in civil transport aircraft. This document, titled "Aircraft - Requirements for on-board weight and balance systems - Part 2: Design, performance and interface characteristics," specifies criteria that ensure accurate and reliable weight and balance monitoring for safe aircraft operation. The standard aligns with the requirements outlined in ARINC 737:1985 and its Supplement 1 (1988), which are adopted as a de facto reference for the sector.
Key Topics
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Design Specifications
ISO 6702-2:1991 identifies critical aspects for the physical and electronic design of OBWBS units, ensuring compatibility with the aircraft's operational environment and integration with other onboard systems.
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Performance Requirements
The standard sets criteria for system accuracy, response time, and reliability, ensuring that weight and balance data provided is precise and supports safety-critical decision-making.
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Interface Characteristics
Detailed requirements are provided for system interfaces, facilitating standardized communication and information exchange between the OBWBS and other avionics or ground support equipment.
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Alignment with ARINC 737
By referencing ARINC 737:1985 and Supplement 1 (1988), ISO 6702-2 ensures that industry-accepted technical guidelines are followed, simplifying compliance for manufacturers and operators.
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Scope of Applicability
This part of the standard applies specifically to civil transport aircraft of class I or class II, supporting broader adoption in commercial aviation.
Applications
ISO 6702-2:1991 is crucial for:
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Aircraft Manufacturers:
Ensuring newly developed civil transport aircraft are equipped with OBWBS that comply with global safety and operational standards.
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Avionics System Designers:
Providing clear criteria for the design and integration of weight and balance monitoring hardware and software, supporting seamless interaction with other aircraft systems.
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Regulatory Compliance:
Facilitating certification processes by adopting internationally accepted technical and performance benchmarks for on-board weight control and monitoring systems.
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Aircraft Operators:
Helping operators maintain compliance with weight and balance safety requirements, reducing the risk of load mismanagement and improving operational efficiency.
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Ground Support Providers:
Enhancing maintenance and calibration services by ensuring compatibility with standardized interface characteristics.
Related Standards
- ISO 6702-1 - General requirements for on-board weight and balance systems, providing foundational context and definitions.
- ARINC 737:1985 and Supplement 1 (1988) - Specific technical documents referenced by ISO 6702-2 for detailed system parameters and guidelines.
- Other ISO/TC 20 Standards - Covering air cargo, ground equipment, and additional avionics system requirements relevant to the aviation industry.
Adopting ISO 6702-2:1991 ensures reliable, accurate, and standardized on-board weight and balance systems. This supports improved safety, operational efficiency, and international regulatory compliance in modern civil aviation.