Product Code:SAE AS4157
Title:Coupling Assemblies, Hydraulic, Self-Sealing, Quick Disconnect, 5000 and 8000 Pounds Per Square Inch, Gage
Issuing Committee:G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Scope: This specification covers the requirements for aircraft hydraulic, self-sealing, quick disconnect couplings for use in 5000 and 8000 lbf/in{sup}2 (gage) lightweight hydraulic systems.Product Code:SAE AIR5774
Title:Composite Fuel Tanks, Fuel System Design Considerations
Issuing Committee:Ae-5 Aerospace Fuel, Oil And Oxidizer Systems Committee
Scope: 1. SCOPEThis AIR is a compilation of engineering references and data useful to the technical community that can be used to ensure fuel system compatibility with composite structure. This AIR is not a complete detailed design guide and is not intended to satisfy all potential fuel system applications. Extensive research, design and development is required for each individual application. 1.1 PurposeThis document is intended to serve as guidance to airframe and equipment manufacturers for the design and installation of fuel systems into composite structure. This document is not intended to be a fully definitive specification, but concentrates on areas where it is felt guidance is needed. The purpose of this AIR is to compile one definitive source of the references, rules, regulations and preferred practices for the development of a fuel system in composite structure. This AIR sets forth some useful design considerations for work with composites as it relates to the fuel system.1.2 BackgroundThe development and installation of a fuel system in composite structure introduces a variety of design situations which are different from aluminium. The differences are related to the properties of the composite material. As an example these may include low electrical and thermal conductivity, greater design sensitivity to holes, reduced shielding from electromagnetic radiation, reduced conductivity of lightning and potential corrosion in graphite aluminum interfaces.1.3 Field of ApplicationThis AIR applies to the aerospace industry and specifically to aircraft that use common petroleum fuels.
Rationale: 1. SCOPEThis AIR is a compilation of engineering references and data useful to the technical community that can be used to ensure fuel system compatibility with composite structure. This AIR is not a complete detailed design guide and is not intended to satisfy all potential fuel system applications. Extensive research, design and development is required for each individual application. 1.1 PurposeThis document is intended to serve as guidance to airframe and equipment manufacturers for the design and installation of fuel systems into composite structure. This document is not intended to be a fully definitive specification, but concentrates on areas where it is felt guidance is needed. The purpose of this AIR is to compile one definitive source of the references, rules, regulations and preferred practices for the development of a fuel system in composite structure. This AIR sets forth some useful design considerations for work with composites as it relates to the fuel system.1.2 BackgroundThe development and installation of a fuel system in composite structure introduces a variety of design situations which are different from aluminium. The differences are related to the properties of the composite material. As an example these may include low electrical and thermal conductivity, greater design sensitivity to holes, reduced shielding from electromagnetic radiation, reduced conductivity of lightning and potential corrosion in graphite aluminum interfaces.1.3 Field of ApplicationThis AIR applies to the aerospace industry and specifically to aircraft that use common petroleum fuels.