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Perspectives on Integrating Structural Health Monitoring Systems into Fixed-Wing Military Aircraft

Aerospace Industry Steering Committee on Structural Health
  • Aerospace Standard
  • AIR6245
  • Current
Published 2019-09-18 by SAE International in United States

This SAE Aerospace Information Report (AIR) is prepared for stakeholders seeking information about the evolution, integration, and approval of SHM technologies for military aircraft systems. The report provides this information in the form of (a) two military organizations’ perspectives on requirements, and (b) general SHM challenges and industry perspectives. The report only provides information to generate awareness of perspectives for military aircraft and, hence, assists those who are involved in developing SHM systems understanding the broad range of regulations, requirements, and standards published by military organizations that are available in the public domain from the military organizations.

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JAUS Autonomous Capabilities Service Set

AS-4JAUS Joint Architecture for Unmanned Systems Committee
  • Aerospace Standard
  • AS8024
  • Current
Published 2019-06-10 by SAE International in United States
This document defines a set of standard application layer interfaces called JAUS Autonomous Capabilities Services. JAUS Services provide the means for software entities in an unmanned system or system of unmanned systems to communicate and coordinate their activities. The Autonomous Behaviors Services represent the platform-independent capabilities commonly found in platforms across domains, including air, maritime, and ground. At present five (5) services are defined in this document. These services are: Comms Lost Policy Manager: Detect and recover from loss of communications with a control station Retrotraverse: Return along a path previously traveled Self-Righting: Attempt to recover from a tip over condition Cost Map 2D: Provides information about the current operating environment of the platform Path Reporter: Provides information about the previous or future planned path of the platform
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Fittings, Axially Swaged Tube with Flareless Separable, Fluid System for Operating Pressures up to and Including 5080 psi (35000 kPa), Specification for

G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
  • Aerospace Standard
  • AS5958G
  • Current
Published 2019-06-10 by SAE International in United States
This SAE Aerospace Standard (AS) establishes the requirements for axially swaged titanium fittings on titanium, CRES, and aluminum tubing with flareless separable fitting ends for use in hydraulic supply and return aerospace fluid systems up to operating pressure of 5080 psig (35000 kPa) maximum. The operating temperature range for titanium tubing and CRES tubing is -65 to +275 °F (-54 to +135 °C) and the operating temperature range for aluminum return system tubing is -65 to +225 °F (-54 to +107 °C). This specification covers a common 5080 psi pressure titanium fitting that may be used for a range of operating pressures up to 5080 psi with different tubing materials and tubing wall thicknesses and is assembled with the same tooling in accordance with AS5959. The flareless fitting operating pressure is based on the fitting thread pitch. Extra fine pitch is used for 5080 psi operating pressure and fine pitch for operating pressures 3000 psi and less. Table 14 shows applicable aerospace fitting part number standard and tubing materials and operating pressures.
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Coating Technology Enables Effective Missile Countermeasures

  • Magazine Article
  • TBMG-34530
Published 2019-06-01 by Tech Briefs Media Group in United States

Heat-seeking missiles have been in use against both rotorcraft and fixed wing aircraft since the mid-1950s, and countermeasures to deceive their guidance systems have been employed for nearly as long. Typically, countermeasures operate by generating a strong infrared signature which confuses the missile tracking system. At the heart of these systems is some form of powerful infrared emitting source. Often this source requires optical coating(s) to perform wavelength filtering needed for optimum operation. However, both the mechanical configuration of the thin film filter coatings used and the operating extremes to which they are subjected present challenges for the manufacturer.

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Interface Standard, Airborne EO/IR Systems, Data

AS-1C Avionic Subsystems Committee
  • Aerospace Standard
  • AS6135A
  • Current
Published 2019-05-14 by SAE International in United States
This standard defines the data interfaces between a host aircraft (“platform”) and an Electro-Optic/Infrared (EO/IR) sensor. These data interfaces cover various types of data including: imagery, metadata, command, status, and responses (CSR), geospatial postion, time, test and maintenance, and hand-controller. This standard does not cover mechanical or electrical interfaces.
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Aircraft Flexible Tanks General Design and Installation Recommendations

AE-5A Aerospace Fuel, Inerting and Lubrication Sys Committee
  • Aerospace Standard
  • AIR1664A
  • Current
Published 2019-05-07 by SAE International in United States
This SAE Aerospace Information Report (AIR) includes general information about the various types and styles of flexible tanks and the tank-mounted fittings that adapt the tank to the surrounding structure and fluid-system plumbing. Recommendations are given relative to the dimensional layout of the tank when these recommendations serve to avoid tank fabrication problems and tank/structure interface problems. As a part of these recommendations, critical dimensions of plumbing adapter fittings are discussed and recommendations made. Tank manufacturing tolerances are given. Recommendations are made relative to cavity design and preparation to facilitate a reliable installation. The special installation requirements of nonself-sealing, self-sealing, and crash-resistant tanks are discussed. This document is not intended to replace the information or requirements of the military and commercial procurement specifications listed in Section 2. No attempt has been made, except in a very general way, to include physical property data such as weight and thickness of the composite materials available in the industry. Such materials are too numerous and vary too much between manufacturers. Whenever specific data or advice is required, it…
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Hose Assembly, Polytetrafluoroethylene, Metallic Braid Reinforced, 5080 psi (35000 kPa), 400 °F (204 °C), Aircraft Hydraulic Systems

G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
  • Aerospace Standard
  • AS5960C
  • Current
Published 2019-04-11 by SAE International in United States
This document defines the requirements for polytetrafluoroethylene (PTFE) lined, metallic braid reinforced, hose assembly suitable for use in 400 °F (204 °C), 5080 psi (35000 kPa) aircraft hydraulic systems.
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Aircraft Parachute Recovery Systems

  • Magazine Article
  • TBMG-33761
Published 2019-02-01 by Tech Briefs Media Group in United States

BRS Aerospace South St. Paul, MN 651-457-7491

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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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Exhaust Plume Analyzer

  • Magazine Article
  • TBMG-33600
Published 2019-01-01 by Tech Briefs Media Group in United States

Exhaust plumes emanating from smoke stacks at power plants or other industrial facilities can have adverse impacts on local aviation during periods of calm winds. Adverse impacts can be exacerbated if the temperature is low or the atmosphere is unstable. While low oxygen concentrations and elevated temperatures inside the plume can be detrimental to slow-flying or hovering helicopters, the turbulence generated from the upward motion of the plume is the main potential hazard to light, fixed-wing aircraft at low altitudes.