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Airborne Hydraulic and Control System Survivability for Military Aircraft

A-6A2 Military Aircraft Committee
  • Aerospace Standard
  • AIR1083C
  • Current
Published 2018-08-23 by SAE International in United States
This SAE Aerospace Information Report (AIR) provides the hydraulic and flight-control system designer with the various design options and techniques that are currently available to enhance the survivability of military aircraft. The AIR addresses the following major topics: a Design concepts and architecture (see 3.2, 3.5, and 3.6) b Design implementation (see 3.3, 3.6, and 3.7) c Means to control external leakage (see 3.4) d Component design (see 3.8)
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Achieving Cleanliness Standards for Aircraft Hydraulic Systems During Manufacture

A-6A2 Military Aircraft Committee
  • Aerospace Standard
  • ARP5891
  • Current
Published 2014-05-12 by SAE International in United States
This SAE Aerospace Recommended Practice (ARP) establishes the processes to achieve and maintain the required cleanliness levels in flight vehicle hydraulic systems during fabrication, assembly and pre-flight functional tests. This recommended practice covers exclusion and removal primarily of solid contaminants that occur or are created during these successive steps. The flushing procedure for installed tubing is detailed. This ARP does not address contamination levels of hydraulic fluids as purchased, operation and maintenance of ground carts, details of component cleanliness or of contamination measurement. This ARP applies to military aircraft and helicopters designed to AS5440, commercial aircraft hydraulic systems designed to ARP4752 and commercial helicopter hydraulic systems designed to ARP4925.
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Long-Term Storage Reliability of High Pressure Gas Containers for Pneumatic Actuation Systems

A-6A2 Military Aircraft Committee
  • Aerospace Standard
  • AIR4725A
  • Current
Published 2013-10-04 by SAE International in United States
This SAE Aerospace Information Report (AIR) provides design data reliability information relative to the long-term storage of gas containers or pressure vessels charged with nitrogen or helium at pressures ranging from 6000 to 12 000 psi. The gas containers are cylindrical, spherical, or toroidal in shape. Internal volumes range up to 1385 in3. Applications for this type cold gas actuation system include tactical missiles, guided projectiles, and smart bombs. A typical system is described.
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Long-Term Storage of Missile Hydraulic Systems

A-6A2 Military Aircraft Committee
  • Aerospace Standard
  • AIR974B
  • Current
Published 2013-10-04 by SAE International in United States
Much of the available long-term storage test data has been reviewed and topically separated to enable the independent discussion of storage effects on fluids, seals, hydraulic components, and hydraulic systems. Comments are made in Section 4 concerning the applicability of the test results and regarding design practices for storability. Conclusions are drawn in Section 5 regarding inactive storage of hydraulic systems for at least a 7 year period.
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Long Term Storage for Missile Hydraulic Control Systems - Design and Operational Practices Guide

A-6A2 Military Aircraft Committee
  • Aerospace Standard
  • AIR867A
  • Current
Published 2013-09-26 by SAE International in United States
No Abstract Available.
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Cold Gas Systems, Missile or Projectiles Design, Installation, Tests and Requirements For

A-6A2 Military Aircraft Committee
  • Aerospace Standard
  • ARP1625B
  • Current
Published 2013-06-05 by SAE International in United States
Systems shall be classified in terms of type, category and class.
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8000 psi Hydraulic Systems: Experience and Test Results

A-6A2 Military Aircraft Committee
  • Aerospace Standard
  • AIR4002A
  • Current
Published 2012-11-15 by SAE International in United States
Shortly after World War II, as aircraft became more sophisticated and power-assist, flight-control functions became a requirement, hydraulic system operating pressures rose from the 1000 psi level to the 3000 psi level found on most aircraft today. Since then, 4000 psi systems have been developed for the U.S. Air Force XB-70 and B-1 bombers and a number of European aircraft including the tornado multirole combat aircraft and the Concorde supersonic transport. The V-22 Osprey incorporates a 5000 psi hydraulic system. The power levels of military aircraft hydraulic systems have continued to rise. This is primarily due to higher aerodynamic loading, combined with the increased hydraulic functions and operations of each new aircraft. At the same time, aircraft structures and wings have been getting smaller and thinner as mission requirements expand. Thus, internal physical space available for plumbing and components continues to decrease.
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Hydraulic Systems, Military Aircraft, Design and Installation, Requirements For

A-6A2 Military Aircraft Committee
  • Aerospace Standard
  • AS5440A
  • Current
Published 2011-01-03 by SAE International in United States
This specification covers the design and installation requirements for Types I and II military aircraft hydraulic systems.
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Long-Term Storage of Missile Hydraulic Systems

A-6A2 Military Aircraft Committee
  • Aerospace Standard
  • AIR974A
  • Historical
Published 2008-11-06 by SAE International in United States
Much of the available long-term storage test data has been reviewed and topically separated to enable the independent discussion of storage effects on fluids, seals, hydraulic components, and hydraulic systems. Comments are made in Section 4 concerning the applicability of the test results and regarding design practices for storability. Conclusions are drawn in Section 5 regarding inactive storage of hydraulic systems for at least a 7 year period.
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AIRBORNE HYDRAULIC AND CONTROL SYSTEM SURVIVABILITY FOR MILITARY AIRCRAFT

A-6A2 Military Aircraft Committee
  • Aerospace Standard
  • AIR1083B
  • Historical
Published 2007-05-23 by SAE International in United States
This SAE Aerospace Information Report (AIR) provides the hydraulic system designer with the various design options and techniques currently available to enhance the survivability of hydraulic systems. A comprehensive knowledge of the hostile environment to which the air vehicle will be exposed will form the basis upon which the overall design philosophy is formulated. The designer should strive to achieve at the absolute minimum a system which provides the actuation and control capability to meet the minimum acceptable flying quality level to complete the operational mission for which the aircraft is designed; i.e., the aircraft can be controlled and the mission terminated safely, including landing. This AIR will attempt to address the following threats: a Typical Small Arms Fire (5.56, 7.62, 12.7 and 14.5 mm AP) b Cannon (20, 30, and 40 mm API/HEI) c NBC/EMI/EMP/Beamed Particle d Chemical/Biological Protection against missiles is beyond the scope of this AIR. Except for electronic counter-measures or evasive maneuvers, no practical technology exists which allows a hydraulic system to survive a direct hit by a missile or largeā€¦
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