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The following is the history of SAE Committee A-10.

The purpose of this SAE Aerospace Recommended Practice (ARP) is to provide recommended test fluids for testing of electrical components used on aircraft exterior or for ground support near aircraft. These fluids were selected based on a consolidation of test fluids used by military and commercial sources and on review of national and international component specifications. These recommendations are general guidelines. Safety factors for any unusual testing applications or operating conditions should be given special consideration by the designer. The test fluids provided are intended to be recommendations and are not intended to limit or supersede those recommended by aircraft or ground support equipment manufacturers.

The purpose of this SAE Aerospace Recommended Practice (ARP) is to provide recommended test fluids for testing of electrical components used on aircraft exterior or for ground support near aircraft. These fluids were selected based on a consolidation of test fluids used by military and commercial sources and on review of national and international component specifications. These recommendations are general guidelines. Safety factors for any unusual testing applications or operating conditions should be given special consideration by the designer. The test fluids provided are intended to be recommendations and are not intended to limit or supersede those recommended by aircraft or ground support equipment manufacturers.

This information report presents a preliminary discussion of liquid propellant gas generation (LPGG) systems. A LPGG system, as used herein, is defined as a system which stores a liquid propellant and, on command, discharges and converts the liquid propellant to a gas. The LPGG system can interface with a gas-to-mechanical energy conversion device to make up an auxiliary power system. Figure 1 shows a block diagram of LPGG system components which include a propellant tank, propellant expulsion system, propellant control and a decomposition (or combustion) chamber. The purpose of this report is to provide general information on the variety of components and system arrangements which can be considered in LPGG design, summarize advantages and disadvantages of various approaches and provide basic sizing methods suitable for initial tradeoff purposes.

This information report presents a preliminary discussion of liquid propellant gas generation (LPGG) systems. A LPGG system, as used herein, is defined as a system which stores a liquid propellant and, on command, discharges and converts the liquid propellant to a gas. The LPGG system can interface with a gas-to-mechanical energy conversion device to make up an auxiliary power system. Figure 1 shows a block diagram of LPGG system components which include a propellant tank, propellant expulsion system, propellant control and a decomposition (or combustion) chamber. The purpose of this report is to provide general information on the variety of components and system arrangements which can be considered in LPGG design, summarize advantages and disadvantages of various approaches and provide basic sizing methods suitable for initial tradeoff purposes.

An attempt has been made to consider all features of seal ring design including configuration, materials, hardness, dimensions, surface finishes, surface treatment, leak testing, and general quality. In addition to this, allowable cylinder breathing and general quality requirements of mating hardware are discussed. Also, at the end of this report, there is a brief paragraph on other types of seal rings.

An attempt has been made to consider all features of seal ring design including configuration, materials, hardness, dimensions, surface finishes, surface treatment, leak testing, and general quality. In addition to this, allowable cylinder breathing and general quality requirements of mating hardware are discussed. Also, at the end of this report, there is a brief paragraph on other types of seal rings.

This AIR points out that above a frequency called the “transition frequency,” variances associated with the shielding effectiveness measurements can become large. It includes the derivations to demonstrate this. This fact should be taken into account when designing shielding for use above the transition frequency.

This recommended practice is written to cover the installation of combustion heaters used in the following applications.

This document recommends criteria for the design and installation of Head-Up Display (HUD) systems. The recommendations are applicable to HUD systems which display flight information focused at infinity in the forward field of view. This annex does not address devices for peripheral vision or displays worn by the pilot (goggles, helmet sights).

These recommendations cover the general field of airplane cabin supercharging equipment and are subdivided as follows:

This aerospace recommended practice covers requirements for a self-propelled, boom type aerial device, equipped with an aircraft deicing fluid spraying system. The unit shall be highly maneuverable for deicing all exterior surfaces of intermediate size aircraft, e.g. DC-9, B-727 and B-737. The vehicle will also be used for aircraft maintenance and inspection. The vehicle shall be suitable for day and night operations.

This Aerospace Recommended Practice includes the following areas: basis for system requirements; selection of materials coupled with hazards and safety; configuration of design; system operation; and evalua tion testing.

This Aerospace Recommended Practice includes the following areas: basis for system requirements; selection of materials coupled with hazards and safety; configuration of design; system operation; and evaluation testing.