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HYDRAULIC SYSTEM SURVIVABILITY FOR MILITARY AIRCRAFT

1985-12-15
HISTORICAL
AIR1083A
This report supplies data on various survivability design approaches and techniques to provide a broad frame of reference for future fluid power designers. Before the designer embarks on the overall system design, a comprehensive understanding of the total hostile environment in which the air vehicle is to operate is mandatory. The overall approach is heavily dependent upon the level of threat, small arms versus medium, or heavy caliber antiaircraft projectiles, missile, single or multiple hit survivability and the projected angle of fire. Overall aircraft stability is a factor which dictates recovery speed from any given failure and limits the magnitude of transient disturbances in the control system. The designer should strive to achieve at a minimum a system which allows high performance type aircraft to obtain a quasi-stable period following total control loss to allow safe ejection of the air crew.
Standard

Fluid-System-Component Specification Preparation Criteria

2013-10-04
CURRENT
AIR1082C
The importance of adequate component procurement specifications to the success of a hardware development program cannot be overemphasized. Specifications which are too stringent can be as detrimental as specifications which are too lax. Performance specifications must not only identify all of the component requirements, but they must also include sufficient quality assurance provisions so that compliance can be verified. It should be understood that in almost every case specifications for components will ultimately become part of a BINDING, WRITTEN CONTRACT (PO). The purpose of this document is to describe types of specifications, provide guidance for the preparation of fluid component specifications, and identify documents commonly referenced in fluid component specifications.
Standard

FLUID-SYSTEM-COMPONENT SPECIFICATION PREPARATION CRITERIA

1992-02-01
HISTORICAL
AIR1082B
The importance of adequate component procurement specifications to the success of a hardware development program cannot be overemphasized. Specifications which are too stringent can be as detrimental as specifications which are too lax. Performance specifications must not only identify all of the component requirements, but they must also include sufficient quality assurance provisions so that compliance can be verified. It should be understood that in almost every case specifications for components will ultimately become part of a BINDING, WRITTEN CONTRACT (PO). The purpose of this document is to describe types of specifications, provide guidance for the preparation of fluid component specifications, and identify documents commonly referenced in fluid component specifications.
Standard

Airborne Hydraulic and Control System Survivability for Military Aircraft

2012-04-11
CURRENT
AIR1083C
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: Design concepts and architecture (see 3.2, 3.5, and 3.6) Design implementation (see 3.3, 3.6, and 3.7) Means to control external leakage (see 3.4) Component design (see 3.8)
Standard

AIRBORNE HYDRAULIC AND CONTROL SYSTEM SURVIVABILITY FOR MILITARY AIRCRAFT

1994-06-01
HISTORICAL
AIR1083B
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: Typical Small Arms Fire (5.56, 7.62, 12.7 and 14.5 mm AP) Cannon (20, 30, and 40 mm API/HEI) NBC/EMI/EMP/Beamed Particle Chemical/Biological Protection against missiles is beyond the scope of this AIR.
Standard

HIGH VOLTAGE PULSE GENERATOR

1969-10-01
CURRENT
AIR1091
This report covers the use, electro-mechanical description, and accuracy of a pulse generator in the range of 5 to 30 kilovolts and zero to peak voltage time of less than 1.0 microsecond.
Standard

Aircraft Accessory Drag Torque During Engine Starts

1999-04-01
CURRENT
AIR1087B
This SAE Aerospace Information Report (AIR) presents a discussion of drag torques of engine accessories operating at cold temperature. Various conditions of temperature, speed, and acceleration rates are reviewed showing the merits of each method and recommending a standard test method.
Standard

Numeral, Letter and Symbol Dimensions for Aircraft Instrument Displays

2002-05-02
CURRENT
AIR1093A
The purpose of this AIR is to provide recommendations for the minimum dimensions of characters and symbols used in aircraft instrument dials and panel displays as related to the conditions stated in para. 3. Numerous variables influence the legibility of aircraft instrument dial characters. This situation makes it very difficult, if not impossible, to establish an exact act of rules for optimizing all installations. Character size, one of the important considerations, can be optimized where adequate dial space exists. Usually this is not the case and the designer is faced with placing the information in a limited space while continuing to strive for error-free legibility. Appropriate minimum size requirements have been stated herein for guidance in air transport use.
Standard

Transparent Area Washing Systems for Aircraft

1997-10-01
HISTORICAL
AIR1102A
This information report presents data and recommendations pertaining to the design and development of transparent area washing systems for aircraft.
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