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Standard

Design Considerations for Hush House Facilities

2018-11-26
WIP
AIR9969
to provide industry with a reference document highlighting the necessary design considerations and configuration option for an aircraft fully enclosed test facility (Hush House).
Standard

Recommended Maintenance, Inspection and Monitoring Procedure for Engine Test Cells

2018-12-20
WIP
ARP8540
A guide to maintenance procedures in test cells. A suggested equipment monitoring and/or inspections to reduce the probability of unanticipated failures and associated test cell down time. Guidelines for using typically available data acquisition capabilities in a test cell are provided to utilize normally available trending capability to monitor the testing equipment in addition to using these tools for the usual monitoring of the test article. For the common types of test cells (turboshaft, turboprop, turbojet, and turbofan) test facilities, lists of typical systems with their associated components are provided with suggested inspection intervals and key items to look for in the inspection. A template risk assessment form is provided to facilitate the customization of the assessment of the test cell components to help predict recommended spares.
Standard

Standard Specification for Turbine Flowmeters

2011-06-10
CURRENT
AS5304
This is a SAE Standard specification with minimum performance characteristics for Turbine Flowmeter (TFM) that pertains only to sizes from ½ to 2 inches. The utilization of TFM is for hydrocarbon liquid fuel volumetric flow measurements. This Standard specifically excludes smart electronics in accomplishing the defined performance objectives. Users of this Standard should specify other TFM characteristics required to satisfy their application and utilization in operational environment. A User should understand fit and function of the TFM and define end user specific fit and function requirements. The TFM should be calibrated by the manufacturer should be based upon end user requirements and presented as Roshko versus Strouhal at a reference temperature. The Supplier shall be prepared to show evidence to User that the device demonstrates compliance with all requirements identified in this Standard.
Standard

Configuration Control for Maintaining Correlation of Gas Turbine Engine Test Cells

2015-08-24
CURRENT
ARP6028A
The FAA has issued Advisory Circular, AC43-207, that recommends re-correlation, trending or period checks. The FAA, AC43-207 bases their recommendation on ARP741. This paper describes a recommended practice and procedure for the configuration control requirements to maintain test cell correlation status. This is necessary to maintain performance measurement integrity, particularly when correlation approval is achieved by statistical trending. The configuration of a test facility that exists at the time when a correlation is being carried out should be "base lined" as a condition of correlation approval acceptance, and, be maintained during the time period that the respective correlation approval lasts. This defines test facility configuration control. This is due to the fact that a change in configuration may have the potential to change the established correlation factors and measured engine performance.
Standard

Configuration Control for Maintaining Correlation of Gas Turbine Engine Test Cells

2009-03-13
HISTORICAL
ARP6028
The configuration of a test facility that exists at the time when a correlation is being carried out should be “base lined” as a condition of correlation approval acceptance, and, be maintained during the time period that the respective correlation approval lasts. This defines test facility configuration control. This is due to the fact that a change in configuration may have the potential to change the established correlation factors and measured engine performance. If such a change occurs then this should be judged by the respective OEM’s or designated correlation approval authorities Subject Matter Expert (SME). In some cases, this may involve consultation with the engine project customer or airworthiness authorities.
Standard

Gas Turbine Engine Test Facility Audit Process

2012-05-16
CURRENT
ARP6196
This SAE Aerospace Recommended Practice provides recommendations for: the audit process in general; a list of specific areas of attention to be audited; maintaining the test facility in such a manner that it meets audit requirements.
Standard

Test Cell Analytical Thrust Correction

2012-11-08
HISTORICAL
AIR5436
This document describes a method to correct engine thrust, measured in an indoor test cell, for the aerodynamic effects caused by the secondary airflow induced in the test cell by the engine operating in an enclosed environment in close proximity to an exhaust duct. While it is not recommended to be used to replace test cell correlation, it does provide a means to verify an existing thrust correlation factor.
Standard

Test Cell Analytical Thrust Correction

2019-07-02
CURRENT
AIR5436A
This document describes a method to correct engine thrust, measured in an indoor test cell, for the aerodynamic effects caused by the secondary airflow induced in the test cell by the engine operating in an enclosed environment in close proximity to an exhaust duct. While it is not recommended to be used to replace test cell correlation, it does provide a means to verify an existing thrust correlation factor.
Standard

Modeling Techniques for Jet Engine Test Cell Aerodynamics

2009-06-16
HISTORICAL
AIR4827A
This SAE Aerospace Information Report (AIR) has been written for individuals associated with ground level testing of turbofan and turbojet engines and particularly for those who might be interested in investigating the performance characteristics of a new test cell design or of proposed modifications to an existing test cell by means of a scale model test.
Standard

Physical Modeling Techniques for Jet Engine Test Cell Aerodynamics

2016-10-21
CURRENT
AIR4827B
This SAE Aerospace Information Report (AIR) has been written for individuals associated with ground level testing of turbofan and turbojet engines and particularly for those who might be interested in investigating the performance characteristics of a new test cell design or of proposed modifications to an existing test cell by means of a scale model test.
Standard

Modeling Techniques for Jet Engine Test Cell Aerodynamics

1999-05-01
HISTORICAL
AIR4827
This SAE Aerospace Information Report (AIR) has been written for individuals associated with ground level testing of turbofan and turbojet engines and particularly for those who might be interested in investigating the performance characteristics of a new test cell design or of proposed modifications to an existing test cell by means of a scale model test.
Standard

DESIGN CONSIDERATIONS FOR ENCLOSED TURBOSHAFT ENGINE TEST CELLS

1996-12-01
HISTORICAL
AIR4989
This SAE Aerospace Information Report (AIR) developed by a broad cross section of personnel from the aviation industry and government agencies is offered to provide state-of-the-art information for the use of individuals and organizations designing new or upgraded turboshaft engine test facilities.
Standard

Design Considerations for Enclosed Turboshaft Engine Test Cells

2013-09-03
CURRENT
AIR4989A
This SAE Aerospace Information Report (AIR) developed by a broad cross section of personnel from the aviation industry and government agencies is offered to provide state-of-the-art information for the use of individuals and organizations designing new or upgraded turboshaft engine test facilities.
Standard

TEST CELL INSTRUMENTATION

1996-11-01
HISTORICAL
AIR5026
This document discusses, in broad general terms, typical present instrumentation practice for post-overhaul gas turbine engine testing. Production engine testing and engine development work are outside the scope of this document; they will use many more channels of instrumentation, and in most cases will have requirements for measurements that are never made in post-overhaul testing, such as fan airflow measurements, or strain measurements on compressor blades. The specifications for each parameter to be measured, in terms of measurement range and measurement accuracy, are established by the engine manufacturers. Each test cell instrument system should meet or exceed those requirements. Furthermore, each instrument system should be recalibrated regularly, to ensure that it is still performing correctly.
Standard

Design, Calibration, and Test Methods for Turbine Engine Icing Test Facilities

2017-09-15
CURRENT
AIR6189
This SAE Aerospace Information Report (AIR) provides descriptions of test procedures and established practices for the application, use, and administration of the conduct of icing testing for all types of turbine engines in conventional supercooled liquid (14 CFR Part 25 Appendix C) environmental conditions in ground test facilities (sea-level and altitude) for icing certification purposes.
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