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Test Cell Analytical Thrust Correction

EG-1E Gas Turbine Test Facilities and Equipment
  • Aerospace Standard
  • AIR5436A
  • Current
Published 2019-07-02 by SAE International in United States
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.
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Numerical Modeling Techniques for Jet Engine Test Cell Aerodynamics

EG-1E Gas Turbine Test Facilities and Equipment
  • Aerospace Standard
  • AIR6355
  • Current
Published 2019-03-21 by SAE International in United States
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 steady-state performance characteristics of a new test cell design or of proposed modifications to an existing test cell by means of numerical modeling and simulation. It is not the intent of this standard to provide specific test cell design recommendations, which are covered in the reference documentation.
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Cargo Compartment Lighting for Transport Category Aircraft and Rotorcraft

A-20C Interior Lighting
  • Aerospace Standard
  • ARP1283C
  • Current
Published 2019-01-14 by SAE International in United States
This SAE Aerospace Recommended Practice (ARP) establishes design guidance and photometric values for adequate cargo compartment and cargo access lighting systems for ground handling. The adoption of a standard set of illuminance values, found appropriate for the performance of the task in specified areas, should expedite ground handling.
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Aircraft Lightning Zone

AE-2 Lightning Committee
  • Aerospace Standard
  • ARP5414B
  • Current
Published 2018-12-05 by SAE International in United States
This SAE Aerospace Recommended Practice (ARP) defines lightning strike zones and provides guidelines for locating them on particular aircraft, together with examples. The zone definitions and location guidelines described herein are applicable to Parts 23, 25, 27, and 29 aircraft. The zone location guidelines and examples are representative of in-flight lightning exposures.
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Design Considerations for Enclosed Turboprop Engine Test Cells

EG-1E Gas Turbine Test Facilities and Equipment
  • Aerospace Standard
  • AIR5295A
  • Current
Published 2018-11-21 by SAE International in United States
This document is offered to provide state-of-the-art information about design factors that must be considered in the design of new or significantly modified engine test cells used to test propeller equipped turboprop engines in either QEC or bare engine configurations. The report does not address design considerations for test cells designed to test turboprop engines with dynamometer type load absorption devices because they are essentially tested as turboshaft engines. Design considerations for those test cells are presented in AIR4989, Reference 2.1.
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Acoustical Considerations for Engine Test Cells

EG-1E Gas Turbine Test Facilities and Equipment
  • Aerospace Standard
  • ARP5759
  • Current
Published 2018-11-21 by SAE International in United States
This document discusses, in broad and general terms, the subject of acoustical considerations in engine test cells. One of the primary purposes of an engine test cell is to control the noise emanating from the operating engine in order to reduce noise in the surrounding facility and community to acceptable levels. This is done by the design and installation of specialized acoustic elements and features, which need to be fully integrated into the overall test cell design. It should be further noted, that the requirements of acoustic control are critical to the proper operation of the engine, safety of plant equipment and personnel, and meeting local and legal noise requirements.
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Operating Instructions for Aircraft Engines (Preparation of)

E-25 General Standards for Aerospace and Propulsion Systems
  • Aerospace Standard
  • AS177C
  • Current
Published 2018-09-11 by SAE International in United States
This specification covers the requirements for format and outline of contents of operating instructions in published form or in manuscript form suitable for publication.
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Axial Magnetic Flux Airflow Integrated Compressor-Generator-Motor Turbojet Design

  • Magazine Article
  • TBMG-28707
Published 2018-04-01 by Tech Briefs Media Group in United States

Innovators at the NASA Armstrong Flight Research Center have developed a compressor-generator-motor turbojet design concept that integrates the generator with the aerodynamic blade structures of the compression section of turbomachinery. This reduces weight and volume compared with conventional turbine generator arrangements in which the turbojet or turbofan drives a separate shaft-driven generator. All conventional turbomachinery designs suffer from some type of system inefficiencies: Conventional side-mounted generators add the weight of a 90-degree gearbox; a rear-mounted generator is difficult to cool. The Armstrong design improves existing configurations with a flight-weight electromagnetic turbo-generator that is suitable for application to distributed turboelectric systems on aircraft, and aids in cooling the system. This technology may enable new aircraft configurations and future TurboElectric Distributed Propulsion (TeDP) aircraft designs.

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Structural Design and Construction Considerations for Enclosed Turbofan/Turbojet Engine Test Cells

EG-1E Gas Turbine Test Facilities and Equipment
  • Aerospace Standard
  • ARP5305A
  • Current
Published 2017-12-18 by SAE International in United States
This SAE Aerospace Recommended Practice (ARP) is written for individuals associated with the ground-level testing of large and small gas turbine engines and particularly for those who might be interested in constructing new or adding to existing engine test cell facilities.
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Test Facility Shakedown and Commissioning

EG-1E Gas Turbine Test Facilities and Equipment
  • Aerospace Standard
  • AIR6364
  • Current
Published 2017-11-29 by SAE International in United States
The paper discusses in general terms the activities required to be undertaken or demonstrated during the establishment of the facility such as: the assessment checks prior to forwarding to the end users site for embodiment into the facility system the establishment of the facility such as trial installations of hardware, functionality checking of lifting transportation and access systems, centerline pull checks, pressure testing of fuel and air start systems, flushing of wet systems and electrical continuity checking. the commissioning of the facility such as instrumentation calibrations, engine starts, engine running, assessment of command and control system, assessment of DAS system, aerodynamic and acoustic surveys. The paper will concentrate on the main engineering engine related aspects of the facility and will not necessarily contain information on the construction validation activities such as HVAC, electrical, facility fire system, waste water etc. Risk analysis may be performed during the design phase whose results could lead to pay particular attention to some specific equipment / functionalities during the commissioning phase. If identified, these risks should be translated to specific…
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