This SAE Aerospace Recommended Practice (ARP) comprises the technical terms and nomenclature, together with their definitions and abbreviations that are used in aerospace Fluid Power Actuation and Control Systems.

NOTE: When a term is applicable to more than one branch or segment of the technology it may have different meanings and definitions in each. Where this occurs the multiple listings with appropriate designations will be shown under the same primary term.

Field of Application

The data contained herein applies to all types of aerospace vehicles and their fluid power and control subsystems and components.

Purpose

The purpose of ARP4386 is to facilitate communications and standardize application of Fluid Power and Control System related terms in a consistent manner throughout the Society of Automotive Engineers publications and throughout the producer and user sectors of the aerospace Industry. Updates received later than 2001 have been included.

Organization of Terms

To get a better understanding as to how the terms are listed, the reader is encouraged to look at the notes in section 4.