SAE AIR4174B

Detailinformationen

Bezeichnung: SAE AIR4174B

Ausgabedatum: 01.05.2026

Seiten: 0

Land: Amerikanische technische Norm

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Annotation

The purpose of this SAE Aerospace Information Report (AIR) is to provide management, designers, and operators with information to assist them to decide what type of power train monitoring they desire. This document is to provide assistance in optimizing system complexity, performance, and cost effectiveness.

This document covers all power train elements from the point at which energy in a turbine or electric engine is converted via a gear train to mechanical energy for propulsion purposes. The document covers aircraft engine driven transmission and gearbox components, their interfaces, drivetrain shafting, drive shaft hanger bearings, and associated rotating accessories, propellers, and rotor systems as shown in Figure 1. For guidance on monitoring additional engine components not addressed herein (e.g., main shaft bearings and compressor/turbine rotors), refer to ARP1839.

This document addresses rotary and fixed wing applications for rotor, turboprop, turbofan, prop fan, and lift fan drive trains on both commercial and military aircraft.

Information is provided to assist in:

Defining technology maturity and application risk


Cost benefit analysis (value analysis)


Selection of system components


Selection of technology


Managing interface requirements


Defining information flow requirements

SUBFILE: Aerospace
TYPE OF DOCUMENT: Aerospace Standard