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AC-9C Aircraft Icing Technology Committee Aerospace

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Standard

SLD capabilities of icing wind tunnels
2015-07-09
WIP
AIR6341
The purpose of this AIR is to compile in one definitive source, commonly accepted calibration, acceptance criteria and procedures for simulation of Supercooled Large Droplet (SLD) conditions within icing wind tunnels. Facilities that meet the criteria for either some or all of the recognized conditions will have known SLD icing simulation capability.
Standard

Icing Tunnel Tests for Thermal Ice Protection Systems
2010-05-11
WIP
AIR6440
This document is intended to provide guidance for conducting icing tunnel tests for assessment and design of thermal anti-ice systems for wing, stabilizers and engine inlets (considering both hot air and electrical power as a heat source).
Standard

Guidance on Selecting a Ground-based Icing Simulation Facility
2013-04-24
WIP
AIR6247
This document is intended to serve two purposes: (1) provide a list of topics for potential customers to ask of the facility to aid their selection decision-making, and (2) provide a list of icing wind tunnel and engine test stand facilities that simulate flight through icing or ice crystal clouds.
Standard

Ice Crystal and Mixed Phase Icing Tunnel Testing of Air Data Probes
2018-04-16
WIP
AIR6974
This document provides information on current practices for testing air data probes to 14 CFR Part 33 Appendix D ice crystal and mixed phase icing conditions. This AIR is primarily concerned with techniques for measuring the flow and icing environment in the test facility. While the focus of this report is the testing of air data probes, techniques described may be applicable to Appendix D tests of other aerospace equipment as well.
Standard

Ice Protection for Unmanned Aerial Vehicles
2017-09-22
WIP
AIR6962
A review of icing materials that would be educational to a designer of a UAV ice protection system is provided. Additionally, the differences between unmanned and manned ice protection systems are explored along with a discussion on how these differences can be addressed.
Standard

Ice and Rain Minimum Performance Standard for Angle of Attack (AOA) and Angle of Sideslip (AOS) Sensors
2020-08-26
WIP
AS6838
The new standard will establish minimum performance requirements for angle of attack (AOA) and angle of sideslip (AOS) sensors in ice and rain conditions. The new standard will cover the various sensor technologies used to measure these flow angles and is limited to the sensor itself as defined from the portion of the sensor that is directly exposed to the ice and rain environment to the means by which its output is relayed to the relevant aircraft systems. The user of this standard must evaluate the aircraft level installation requirements for the probe to ensure adequate coverage for the application. It may be necessary to modify the test conditions in order to meet the applicable installation requirements.
Standard

Ice Shape Test Matrix Development for Unprotected Surfaces
2010-10-19
WIP
ARP6455
This document is intended to provide guidance for development of a test matrix for generation of ice shapes on unprotected surfaces. It introduces the reader to scaling of flight conditions to capabilities of typical icing tunnels and provides an example of the process.
Standard

Thermal Anti-Icing Equipment, Wing and Empennage
2001-07-01
CURRENT
AS18607A
This specification covers the general requirements for the design, installation, and performance of thermal anti-icing equipment for the wings and empennage surfaces in aircraft.
Standard

THERMAL ANTI-ICING EQUIPMENT, WING AND EMPENNAGE
1997-08-01
HISTORICAL
AS18607
This specification covers the general requirements for the design, installation, and performance of thermal anti-icing equipment for the wings and empennage surfaces in aircraft.
Standard

Droplet Sizing Instrumentation Used in Icing Facilities
2013-04-23
CURRENT
AIR4906
A review of droplet sizing instruments used for icing research is presented. These instruments include the Forward Scattering Spectrometer Probe, the Optical Array Probe, the Phase Doppler Particle Analyzer, the Malvern Particle Size Analyzer, the oil slide technique, and the rotating multicylinder. The report focuses on the theory of operation of these instruments and practical considerations when using them in icing facilities.
Standard

Icing Wind Tunnel Interfacility Comparison Tests
2012-10-03
HISTORICAL
AIR5666
This SAE Aerospace Information Report (AIR) presents and discusses the results of tests of three models in six icing wind tunnels in North America and Europe. This testing activity was initiated by the Facility Standardization Panel of the SAE AC-9C Aircraft Icing Technology Subcommittee. The objective of the testing activity was to establish a benchmark that compared ice shapes produced by icing wind tunnels available for use by the aviation industry and to use that benchmark as a basis for dialogue between facility owners to improve the state-of-the-art of icing wind tunnel technology.
Standard

Icing Wind Tunnel Interfacility Comparison Tests
2018-10-16
CURRENT
AIR5666A
This SAE Aerospace Information Report (AIR) presents and discusses the results of tests of three models in six icing wind tunnels in North America and Europe. This testing activity was initiated by the Facility Standardization Panel of the SAE AC-9C Aircraft Icing Technology Subcommittee. The objective of the testing activity was to establish a benchmark that compared ice shapes produced by icing wind tunnels available for use by the aviation industry and to use that benchmark as a basis for dialogue between facility owners to improve the state-of-the-art of icing wind tunnel technology.
Standard

Aircraft Inflight Icing Terminology
2002-09-17
HISTORICAL
AIR5504
This SAE Aerospace Information Report (AIR) provides definitions for terms commonly used in aircraft inflight icing system design and analysis, research, and operations. Some general thermodynamic terms are included that are frequently used in icing analysis, but this document is not meant to be an inclusive list of such terms.
Standard

Aircraft Inflight Icing Terminology
2009-11-24
CURRENT
AIR5504A
This SAE Aerospace Information Report (AIR) provides definitions for terms commonly used in aircraft inflight icing system design and analysis, research, and operations. Some general thermodynamic terms are included that are frequently used in icing analysis, but this document is not meant to be an inclusive list of such terms. The purpose of this document is to provide an assemblage of definitions for terms commonly used in aircraft icing. Over time, the field of aircraft icing has evolved a set of terms that are sometimes used in different ways and have different meanings. This document is a compendium of icing terms and their associated definitions. The SAE does not endorse or recommend any particular definition given in this report.
Standard

Aircraft Inflight Icing Terminology
2018-09-27
WIP
ARP5624A
This SAE Aerospace Recommended Practice (ARP) provides recommended definitions for terms commonly used in aircraft inflight icing system design and analysis, research, and operations. Some general thermodynamic terms are included that are frequently used in icing analysis, but this document is not meant to be an inclusive list of such terms.
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