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Standard

Procedure for the Analysis and Evaluation of Gaseous Emissions from Aircraft Engines

2018-05-02
WIP
ARP1533D
SAE Aerospace Recommended Practice ARP1533 is a procedure for the analysis and evaluation of the measured composition of the exhaust gas from aircraft engines. Measurements of carbon monoxide, carbon dioxide, total hydrocarbon, and the oxides of nitrogen are used to deduce emission indices, fuel-air ratio, combustion efficiency, and exhaust gas thermodynamic properties. The emission indices (EI) are the parameters of critical interest to the engine developers and the atmospheric emissions regulatory agencies because they relate engine performance to environmental impact. While this procedure is intended to guide the analysis and evaluation of the emissions from aircraft gas turbine engines, the methodology may be applied to the analysis of the exhaust products of any hydrocarbon/air combustor.
Standard

Aerospace Series - Quality Management Systems - Nonconformance Data Definition and Documentation

2018-05-02
WIP
AS9131D
This standard defines the common nonconformance data definition and documentation that shall be exchanged between an internal/external supplier or sub-tier supplier, and the customer when informing about a nonconformity requiring formal decision. The requirements are applicable, partly or totally, when reporting a product nonconformity to the owner or operator, as user of the end item (e.g., engine, aircraft, spacecraft, helicopter), if specified by contract. The process of exchanging, coordinating, and approving nonconformance data varies with the multiple relationships and agreements among all parties concerned. The information provided by this standard forms guidelines for submitting and managing of data through accurate communication. The main objective is to provide the definition of a data set that can be integrated into any form of communication (e.g., electronic data interchange, submission of conventional paper forms).
Standard

General Agreement AM-M GA AM17-A

2018-05-01
WIP
GAAM17-A
To enable consistency across AM specifications the committee considers it necessary to establish definitions for common terms that will be used in applicable AM specifications.
Standard

Gas Turbine Engine Performance Presentation for Computer Programs

2018-05-01
WIP
AS681L

This SAE Aerospace Standard (AS) provides the method for presentation of gas turbine engine steady state and transient performance calculated using computer programs. It also provides for the presentation of parametric gas turbine data including performance, weight, and dimensions computed by computer programs.

This standard is intended to facilitate calculations by the program user without unduly restricting the method of calculation used by the program supplier. This standard is applicable to, but not limited to the following program types: data reduction, steady-state, transient, preliminary design, study, specification, status, and parametric programs.

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