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SAE AIR6942

Name: SAE AIR6942 PDF | Request Standard
SKU: 8c40961e18ef

Nitrogen Absorption/Desorption (Gas Dissolution) in Aircraft Shock Absorbers

Standard by SAE International, 2025-08-01

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SAE AIR6942.PDFSecure PDF
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Language: English
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Language: English
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About This Item

This document outlines the current state of the art in the understanding of gas in solution in shock absorber oils (hydraulic fluid, referred to hereafter as oil or fluid [refer to AIR5358B]) in unseparated shock absorbers. A literature review, overview of Henry’s law, Henry’s law coefficients for known gas and oil couples, in-service operational problems, lessons learned, and potential future work are discussed in the document. Despite the fact that air (nitrogen) and mineral oil (hydraulic fluid) have been the two fluids used in aircraft shock absorbers for more than 50 years, the detailed behavior of gas in solution in shock absorbers is not well understood. As modern designs push aircraft and landing gears to finer margins, an improved understanding of this behavior is required.

SKU: 8c40961e18ef

Publication Date: 2025-08-01

Standard Status: latest

Publisher: SAE International

Document Type: Aerospace Standard

Subject: Dampers and shock absorbers, Aircraft, Gases, , , , , ,

Official SAE: Doi link

This Version: AIR6942 (2025-08-01)

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