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Paint System, Fluorescent, Removable, for Aircraft Application

AMS G8 Aerospace Organic Coatings Committee
  • Aerospace Material Specification
  • AMSP21600B
  • Current
Published 2019-10-28 by SAE International in United States
This specification establishes the requirements for a high visibility, durable, exterior fluorescent coating system consisting of a pigmented fluorescent coating with a clear protective overcoat containing a weathering stabilizer. This coating system is capable of being removed without softening the permanent undercoats.
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Primer, Anodic Electrodeposition for Aircraft Applications

AMS G8 Aerospace Organic Coatings Committee
  • Aerospace Material Specification
  • AMS3144A
  • Current
Published 2019-10-17 by SAE International in United States
This specification establishes the requirements for a waterborne, corrosion inhibiting, chemical and solvent resistant, anodic electrodeposition epoxy primer capable of curing at 200 to 210 °F (93 to 99 °C).
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Importance of Physical and Chemical Properties of Aircraft Hydraulic Fluids

A-6C3 Fluids Committee
  • Aerospace Standard
  • AIR81E
  • Current
Published 2019-10-02 by SAE International in United States
This document discusses the relative merits of the physical and chemical properties of hydraulic fluids in relation to the aerospace hydraulic system design, and the related materials compatibility. The discussion in this report applies both to hydrocarbon and phosphate ester based aircraft hydraulic fluids. In some cases, numerical limits are suggested, but, in general, the significance and effect of a property is noted qualitatively.
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Fluid-Filled Frequency-Tunable Mass Damper

  • Magazine Article
  • TBMG-35253
Published 2019-10-01 by Tech Briefs Media Group in United States

Innovators at Marshall Space Flight Center developed the fluid-filled Frequency-Tunable Mass Damper (FTMD) technology that allows for significant distribution of loads while also providing a simple mechanism that allows for the capability to change its frequency of mitigation with negligible impact on the damper system. For existing fluid-filled pipes, ducts, ballast tanks, etc., the fluid can be leveraged to provide vibration mitigation. This new technology enables structural engineers to set and change the fundamental mitigation attributes of the mass damper system with little to no modification of the fluid container.

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Low-Cost and Light-Weight Fireproof Material for Aircraft: Interior, Cargo Compartment and Unit Load Device (Fire and Explosion Container ULD)

Sardou Societe Anonyme-Max Sardou
Published 2019-09-16 by SAE International in United States
Fire is a dramatic issue in aircraft nowadays, especially for composite air craft. An additional issue is the dangerous use of flammable Li-Ion batteries in many devices. To minimize fire issues, it is proposed to produce aircraft interiors, fire doors, cargo bay walls, and cargo containers that are able to contain a fire inside them, with our ceramic composite called TOUGHCERAM®. It is low-cost, ceramic, damage tolerant, and flexible between minus 100°C and plus 350°C. TOUGHCERAM® poly-crystalizes between 20°C and 110°C and can be reinforced with fibers (carbon or basalt). It will survive 90 minutes under direct contact with a propane torch of 1900°C. TOUGHCERAM® does not burn or smoke.This paper will explain how it is possible to develop a fully mineral-ceramic offering with unique mechanical, fire, and blast containment properties.
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3D Numerical Study of Sloshing Attenuation Using Vertical Slotted Barriers

Helwan University Faculty of Engineering-Mohamed Fahmy Younes
Published 2019-07-25 by SAE International in United States
The present study deals with the reduction of fluid vibrations by dissipating the kinetic energy in a closed vibrating container partly filled using vertical slotted obstacles. The effect of the barriers on the liquid vibration inside a closed container exposed to a harmonic excitation is numerically studied. A single vertical slotted barrier (SVSB) and multivertical slotted barrier (MVSB) systems are considered for different liquid levels. The 3D liquid domain with the tank and the barrier as boundaries is modelled and solved numerically using ANSYS-CFX software. The reduction in pressures on the walls and the ceiling of the tank due to the influences of the slot size and numbers were evaluated to optimize the size and the numbers of the slots. The numerical approach shows an ability to simulate the nonlinear behavior of the liquid vibration when using vertical slotted barriers (VSB). The obtained results show that the SVSB is more efficient than the MVSB to decrease the dangers of dynamic impacts of the liquid vibrations inside the container. The system-damping factor depends mainly on the…
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Rubber: Butyl (IIR Abbreviation) Phosphate Ester Resistant 65 to 75 Hardness for Seals in Hydraulic Systems, etc.

AMS CE Elastomers Committee
  • Aerospace Material Specification
  • AMS7338A
  • Current
Published 2019-07-18 by SAE International in United States
This specification covers a butyl rubber in the form of molded rings, compression seals, o-ring cord, and molded-in-place gaskets for aeronautical and aerospace applications. As AMS3238 is no longer valid for O-rings. For O-rings, the requirements of AMS7338 shall be met wherever AMS3238 is specified.
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Identification Welding Wire, Tab Marking Method

AMS B Finishes Processes and Fluids Committee
  • Aerospace Material Specification
  • AMS2816W
  • Current
Published 2019-07-15 by SAE International in United States
This specification covers procedures for tab marking of bare welding wire to provide positive identification of cut lengths and spools.
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New and Newly Retreaded Tire Appearance

A-5C Aircraft Tires Committee
  • Aerospace Standard
  • ARP6307A
  • Current
Published 2019-07-02 by SAE International in United States
This document is for establishing and addressing anomalies on appearance of new and newly retreaded tires prior to installation on aircraft. It is intended to use cosmetics as well as functionality to make a determination of acceptability. However, if cosmetic appearance is not a requirement, use the inspection criteria from ARP6225. This ARP does not supersede (E)TSO-C62 minimum requirements, including marking requirements.
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Rubber, Synthetic General Purpose, Fluid Resistant 55 - 65

AMS CE Elastomers Committee
  • Aerospace Material Specification
  • AMS3220H
  • Current
Published 2019-06-11 by SAE International in United States
This specification covers a synthetic rubber in the form of sheet, strip, tubing, extrusions, and molded shapes.
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