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THIS paper describes the various types of radiator installations in use. Tabulated data on several makes of radiation and on successful airplane radiator installations are given. A brief review of laboratory tests is made and the features to be considered in design and manufacture are discussed. The author concludes by cautioning engineers against attempting to base new designs entirely upon experimental data, without comparing the tentative design with existing successful installations.

ARINC Report 679 defines the functional characteristics of an airborne server that will support Electronic Flight Bags (EFBs) and similar peripherals used in the flight deck, cabin, and maintenance applications. The document defines how EFBs will efficiently, effectively, safely, and securely connect to the airborne server in a way that offer expanded capabilities to aircraft operators. The airborne server has two main functions, first to provide specific services to connected systems, and second to provide centralized security for the EFB and its data. This document is a functional airborne server definition. It does not define the physical characteristics of the server.

This standard defines a common configuration report format that can be retrieved from an aircraft for use by ground tools and maintenance personnel. Reports will be generated in Extensible Markup Language (XML) format and structured as defined by this document. Several optional elements and attributes are defined to allow flexibility for a given report. This standard provides aircraft manufacturers, regulatory agencies, and airlines a format standard for aircraft configuration reporting, and facilitates automated comparison of configuration data reports (e.g., authorized versus as flying, etc.).

This standard defines a common configuration report format that can be retrieved from an aircraft for use by ground tools and maintenance personnel. Reports will be generated in Extensible Markup Language (XML) format and structured as defined by this document. Several optional elements and attributes are defined to allow flexibility for a given report. This standard provides aircraft manufacturers, regulatory agencies, and airlines a format standard for aircraft configuration reporting, and facilitates automated comparison of configuration data reports (e.g., authorized versus as flying, etc.).

This document covers the field of civilian, commercial and military airplanes and helicopters. This summary of tail bumper design approaches may be used by design personnel as a reference and guide for future airplanes and helicopters that require tail bumpers. Those described herein will consist of simple rub strips, structural loops with a wear surface for runway contact, retractable installations with replaceable shock absorbers and wear surfaces and complicated retractable tail landing gears with shock strut, wheels and tires. The information will be presented as a general description of the installation, its components and their functions.

The intent of this SAE Aerospace Information Report (AIR) is to inform the aerospace industry about various systems available to monitor the inflation pressure or temperature of an aircraft tire. The tire pressure indicating system (TPIS), with cockpit display, is the most widely used of all aircraft tire monitoring systems, and is detailed in this document more than other systems.

This recommended practice describes a method for conducting room temperature, contaminated fuel, endurance testing when the applicable specification requires nonrecirculation of the contaminants. The objective of the test is to determine the resistance of engine fuel system components to wear or damage caused by contaminated fuel operation. It is not intended as a test for verification of the component’s filter life. ARP1827 is recommended for filter evaluation.

Synthetic lubricants are coming into prominence for lubrication of aircraft turbine engines, because of the stringent operating temperature requirements. Because many of the surfaces to be lubricated in the turbine engine operate under conditions of boundary or “thin-film” lubrication, the friction and surface-failure properties of the lubricant under these conditions are of extreme importance. In consequence, an investigation was made at the NACA laboratories of the friction properties of several classes of synthetic lubricants over a wide range of sliding velocities. Most synthetics including a diester, a polyether, a silicate ester and a phosphonate ester are more effective boundary lubricants at high sliding velocities than petroleum oils of comparable viscosity at 100° F. The breakdown of effective lubrication takes place at a much higher sliding velocity with these synthetic fluids than with the petroleum oils.

This AIR discusses the history and development of endurance requirements, provides an analysis of test contaminant material and includes a discussion of future requirements.

This document discusses the history and development of endurance requirements, provides an analysis of test contaminant material and includes a discussion of future requirements.

This specification establishes the common requirements for variable delivery, hydraulic pumps, suitable for use in aircraft; and the methods to be used for demonstrating compliance with these requirements.

Stating that most of the copying of aircraft practice in post-war car-design has proved a failure because the fundamental difference in duty has not been realized, the author proposes to show wherein the automobile designer and the engine builder can profit by the use of practice developed for air-cooled aircraft engines and, after generalizing on the main considerations involved, discourses on the simplicity of layout of the efficient air-cooled cylinder as a preface to a somewhat detailed discussion regarding cylinder design and performance, inclusive of valve location, type of finning and form of cylinder-head.

THIS paper outlines the important electrical requirements of radio ignition shielding. The reason for low resistance grounding and bonding of the shield is explained. A method for testing the resistance of plastic insulators to flash-over is suggested, and a method developed in England for reducing spark-plug electrode erosion is described.

This specification covers steel cleanliness requirements for aircraft-quality ferromagnetic, hardenable corrosion-resistant steels by magnetic particle inspection methods to determine the presence of nonmetallic inclusions. Applicable primarily to blooms, billets, tube rounds, stock for forging or flash welded rings, slabs, bars, tubing, and extrusions used in fabricating parts subject to magnetic particle inspection, but may be used for qualification of a heat, melt, or lot of steel.

The purpose of this document is to define a general purpose non-proprietary information exchange framework and protocol for the conduct of Internet Protocol based message traffic between aircraft and airline ground infrastructure. This standard is motivated by the vision to substantially simplify information processing management for airlines by eliminating multiple dissimilar implementations with a single universal system and thereby establishing a more economical environment.