Browse Topic: Commercial aircraft

Items (1,842)

Noise Reduction in High-Speed Sonic Under expanded jets using Slanted Perforated Tabs

2025-01-003205/05/2023

Studies on High-Speed Jet control is of prime importance to aerospace as well as related industries. Proper mixing of Jet of a fuel with the surrounding air is indispensable in the combustion chamber of a propulsive system, this contributes to the need of enhancing mixing of Jet with ambient air. The noise radiated by a jet engine is also a major problem for many cities around the world and this method also reduces the Jet associated noise which is of immense environmental concern for transport aircrafts. The High-speed Jet control is achieved by using two different methods. They are active Control method and passive control method. In active control method, the idea is to introduce stream wise vortices into the mixing layer of the jet. Passive control of the jet can be achieved by adding geometrical modifications. The present study deals with an innovative passive control of jet using slanted perforated tabs. which focuses on the method of changing the structures in turbulent free

R, Asad Ahmed, SUBRAMANIAN, THANIGAIARASU

Numerical Drag and Lift Predictions of Transport Aircrafts

2022-26-118605/26/2022

Accurate estimation of drag and lift during take-off/landing and flight of an aircraft is critical in improving its performance. The flow separation and aerodynamic forces estimation using a CFD simulation are very sensitive to numerical methods, types of grid, turbulence models and other numerical treatments. In this paper, results from the simulations of two aircraft models using a RANS based CFD software, SimericsMP+ are presented. One set of simulations are performed on a DLR-F6 model at conditions of 0.75 Mach number and 3.0e6 Reynolds number as provided in the 2nd AIAA CFD Drag Prediction Workshop. The flow behavior over a range of angle of attack during the flight condition at transonic speed is simulated for Wing Body Nacelle Pylon (WBNP) configuration of DLR-F6 model. The second set of simulations are performed on JAXA high-lift configuration Standard Model (JSM) with nacelle-off configuration. These simulations are performed for high-lift conditions of 0.172 Mach number and

Godavarthi, Raghu Vamsee, Wang, Junfeng, Maiti, Dipak

Application Guide for Aerospace Hydraulic Motors

ARP4940A (Current)

11/09/2021

This SAE Aerospace Recommended Practice (ARP) is an application guide for fixed and variable displacement hydraulic motors. It provides details of the characteristics of fixed and variable displacement hydraulic motors, architectures, circuit designs, controls, and typical applications. The applications include airborne and defense vehicles with emphasis on high performance applications.

A-6C4 Power Sources Committee

Aircraft Brake Temperature Monitoring

ARP6812 (Current)

10/28/2021

This SAE Aerospace Recommended Practice (ARP) provides recommendations for the function, design, construction, and testing of an on-aircraft Brake Temperature Monitoring System (BTMS), sometimes referred to as a Brake Temperature Indication System (BTIS). NOTE: This ARP does not address: Cockpit ergonomics and Aircraft operating procedures. Various handheld methods of temperature sensing or readouts, as these are not associated with transport aircraft during normal operation. Temperature sensitive paints as a means to indicate exceedance of a landing gear axle temperature threshold due to brake temperature.

A-5A Wheels, Brakes and Skid Controls Committee

Research on Locked Wheel Protection Function of Aircraft Brake System

2021-01-126910/11/2021

Li, Bing, Dong, Jin, Xiao, Peng, Meng, Qingtang

115/200 Volt, 400 Hz Aircraft External Electrical Power Connector Contact Maintenance Procedures

AIR4365B (Current)09/30/2021

This SAE Aerospace Information Report (AIR) describes procedures for use in the field to determine if 115/200 Volt, 400 Hz aircraft external electrical power connectors are excessively worn, which may result in the inability of the external power plug to be retained, intermittent electrical performance and arcing.

AGE-3 Aircraft Ground Support Equipment Committee

Aircraft Maintenance Jacks - General Requirements

AS4775B (Current)09/30/2021

This document covers the general requirements for hydraulic aircraft jacks. It can be applied to tripod, unipod, and axle jacks that may be used on open ramp areas as well as in the aircraft hangar. Throughout this Aerospace Standard, the minimum essential criteria are identified by the key word “shall”. Recommended criteria are identified by use of the key word “should”. Deviation from recommended criteria should only occur after careful consideration and thorough service evaluation have shown alternate methods to provide an equivalent level of safety. The term “vertical load” throughout this Aerospace Standard is defined as the force imposed on the aircraft jack at the airframe jack point.

AGE-3 Aircraft Ground Support Equipment Committee

Aircraft Ground Service Connections Locations and Type

ARP4084B (Current)09/30/2021

The purpose of this SAE Aerospace Recommended Practice (ARP) is to standardize locations of aircraft ground service connections to accommodate the trend toward fixed systems, which use the passenger boarding bridge and/or underground “pop-up” or pit systems as a source of utilities. It must be recognized that, in standardizing the locations of the aircraft service connections, they must continue to be served efficiently in those instances where mobile ground support equipment is used. There is an ever increasing number of fixed installations for aircraft servicing. The objectives to be met by standardizing the locations of the aircraft service connections are the following:

AGE-3 Aircraft Ground Support Equipment Committee

Ramp Markings

ARP5910A (Current)09/30/2021

This SAE Aerospace Recommended Practice (ARP) outlines recommended ramp pavement marking standards for proper guidance and positioning of GSE on commercial transport aircraft parking and handling stands (gates), in line with International Civil Aviation (ICAO) recommendations applicable to airport aprons. Throughout this document, the minimum essential criteria are identified by use of the key word “shall”. Recommended criteria are identified by use of the key word “should” and, while not mandatory, are considered to be of primary importance in providing safety effective ramp markings. Deviation from recommended criteria should only occur after careful consideration and thorough service evaluation have shown alternate methods to provide an equivalent level of safety.

AGE-3 Aircraft Ground Support Equipment Committee

Carbon Fiber Fabric and Epoxy Resin Wet Lay-Up Repair Material Part 5 - Carbon Fiber Fabrics, Plain Weave, 193 g/m2, and Epoxy Resin

AMS2980/5A (Current)09/24/2021

This Material Specification defines the requirements of carbon fiber fabric and epoxy resin systems used for wet lay-up repair of carbon fiber reinforced epoxy structures, qualified according to AMS2980/1 and AMS2980/2. Unless otherwise specified by the drawing, the order or the inspection schedule, the present specification shall be used in conjunction with the referenced documents.

AMS CACRC Commercial Aircraft Composite Repair Committee

Minimum Operational and Maintenance Responsibilities for Aircraft Tire Usage

ARP5265C (Current)

09/20/2021

This SAE Aerospace Recommended Practice (ARP) sets forth criteria for the installation, inflation, inspection, and maintenance of aircraft tires and the maintenance of the operating environment to ensure the safety of support personnel and the safe operation of the aircraft.

A-5C Aircraft Tires Committee

Minimum Operational and Maintenance Responsibilities for Aircraft Tire Usage

ARP5265C-TEST-REC (Historical)09/20/2021

A-5C Aircraft Tires Committee

Title

SAE-PP-0041809/13/2021

Abstract

Jackson, Alyssa, Jackson, Alyssa, SintzUSER, Jeneane, SintzUSER, Jeneane, Jackson, Alyssa, Jackson, Alyssa, SintzUSER, Jeneane, SintzUSER, Jeneane

Convenient Location of Oxygen Masks for Both the Crew and Passengers of Aircraft

AIR1390A (Historical)08/10/2021

There are four basic conditions requiring the dispensing of oxygen through oxygen masks to aircraft occupants in turbine powered aircraft during flight. The following conditions are derived from the Federal Aviation Regulations (FAR) as listed in Section 2.

A-10 Aircraft Oxygen Equipment Committee

Location of Crew and Passenger Oxygen Masks, Portable Oxygen System, and Protective Breathing Equipment

ARP6390 (Current)08/10/2021

Various emergency situations may require the dispensing of oxygen to all occupants of aircraft during flight. During an emergency event, depending on the aircraft operational flight capability, all cabin occupants must be serviced by a mask presentation system connected to an operational oxygen source. Several regulations specify the functional characteristics and requirements of the oxygen systems for aircraft in support of different missions. These should be referred to for the exact functional performance requirements. It is not the intent of this document to ensure conformance with these regulations, but only to recommend general concepts for the location of the oxygen masks and oxygen system outlets for proper accessibility by the aircraft occupants, whether cabin occupants or crew members. Different requirements may apply when the mission of the pressurized aircraft or the operational altitude of the aircraft is not in excess of FL250. When the aircraft is operating above FL100

A-10 Aircraft Oxygen Equipment Committee

TIMELY RECOVERY OF FLIGHT DATA (TRFD)

ARINC681 (Current)08/06/2021

The difficulty in locating crash sites has prompted international efforts for alternatives to quickly recover flight data. This document describes the technical requirements and architectural options for the Timely Recovery of Flight Data (TRFD) in commercial aircraft. ICAO and individual Civil Aviation Authorities (CAAs) levy these requirements. The ICAO Standards and Recommended Practices (SARPs) and CAA regulations cover both aircraft-level and on-ground systems. This report also documents additional system-level requirements derived from the evaluation of ICAO, CAA, and relevant industry documents and potential TRFD system architectures. It describes two TRFD architectures in the context of a common architectural framework and identifies requirements. This report also discusses implementation recommendations from an airplane-level perspective.

Airlines Electronic Engineering Committee

Aircraft Indicating Systems Optical Performance

ARP1088C (Current)

06/01/2021

This ARP is intended to cover the warning, caution, and advisory indicating system required for commercial and military aerospace vehicles.

A-20A Crew Station Lighting

Safety Considerations of Carry-On Baggage Relating to the Emergency Evacuation of Transport Category Aircraft

ARP4072A (Current)05/20/2021

This SAE Aerospace Recommended Practice (ARP) provides information and recommended guidelines for handling carry-on baggage prior to emergencies and during the emergency evacuation of transport category aircraft. Recommendations are provided on limiting the size, amount, and weight of carry-on baggage brought into the cabin, improved stowage of carry-on baggage to minimize hazards to passengers in flight and during emergency evacuations, and procedures to ensure carry-on baggage is not removed during an emergency evacuation.

S-9B Cabin Interiors and Furnishings Committee

DRYING OF THERMOSETTING COMPOSITE MATERIALS

ARP4977 (Current)05/14/2021

This SAE Aerospace Recommended Practice (ARP) describes standard methods for drying commercial aircraft composite structures prior to repair and gives general guidelines on use and applicability. It addresses the removal of liquids that have collected inside the structures through open damage, microcracks, or porosity and the removal of absorbed moisture from the composite material. The methods described in this document shall only be used when specified in an approved repair document or with the agreement of the original equipment manufacturer (OEM) or regulatory authority. If this document is used for the drying of materials other than thermosetting composite materials, the fitness for this purpose must be determined by the user.

AMS CACRC Commercial Aircraft Composite Repair Committee

Landing Gear Alignment

AIR5556 (Current)04/23/2021

The purpose of this Aerospace Information Report is to provide the industry with methodologies for measuring tire/wheel gear alignment and the range of acceptable alignment settings for various types of non-military landing gear. This AIR will focus on the general aviation, corporate, and regional aircraft landing gear but could have applicability to commercial aircraft.

A-5 Aerospace Landing Gear Systems Committee

Aircraft Flotation Analysis

AIR1780A (Current)04/23/2021

This document is divided into five parts. The first part deals with flotation analysis features and definitions to acquaint the engineer with elements common to the various methods and the meanings of the terms used. The second part identifies and describes the various methods used. To accomplish the minimum intent of this document, techniques could be limited to those needed for flotation analysis only; however, because of the close relation between flotation analysis and runway design, methods for the latter are also included. In fact, runway design criteria are used for flotation and evaluation in some cases, and are periodically the governing procedure in specific, if isolated, instances. From time to time, it may be necessary to deal with runways built to obsolete criteria. Therefore, a listing of most of these constitutes the third part. The fourth part of this document tabulates the recommended documents, categorizing them for commercial and civil versus military usage, by

A-5 Aerospace Landing Gear Systems Committee

Capacitive Fuel Gauging System Accuracies

AIR1184B (Current)04/23/2021

This report is intended to identify the various errors typically encountered in capacitance fuel quantity measurement systems. In addition to identification of error sources, it describes the basic factors which cause the errors. When coupled with appraisals of the relative costs of minimizing the errors, this knowledge will furnish a tool with which to optimize gauging system accuracy, and thus, to obtain the optimum overall system within the constraints imposed by both design and budgetary considerations. Since the subject of fuel measurement accuracy using capacitance based sensing is quite complex, no attempt is made herein to present a fully-comprehensive evaluation of all factors affecting gauging system accuracy. Rather, the major contributors to gauging system inaccuracy are discussed and emphasis is given to simplicity and clarity, somewhat at the expense of completeness. An overview of capacitive fuel gauging operation can be found in AIR5691. This document also discusses how

AE-5A Aerospace Fuel, Inerting and Lubrication Sys Committee

Wheel Chocks

AIR4905A (Current)04/08/2021

The purpose of this document is to present general considerations for the design and use of aircraft wheel chocks. The design and use of aircraft wheel chocks is a good deal more complicated than it may appear at first glance.

AGE-3 Aircraft Ground Support Equipment Committee

Main Line Aircraft Tow Bar Attach Fitting Interface

AS1614D (Current)04/08/2021

This SAE Aerospace Standard (AS) specifies the interface requirements for tow bar attachment fittings on the nose gear (when towing operations are performed from the nose gear) of conventional tricycle type landing gears of commercial civil transport aircraft with a maximum ramp weight higher than 50,000 kg (110,000 pounds), commonly designated as “main line aircraft”. Its purpose is to achieve tow bar attachment fittings interface standardization by aircraft weight category (which determines tow bar forces) in order to ensure that one single type of tow bar with a standard connection can be used for all aircraft types within or near that weight category, so as to assist operators and airport handling companies in reducing the number of different tow bar types used.

AGE-3 Aircraft Ground Support Equipment Committee

Generalizing Aspects of System Safety to Broaden Applicability

2021-01-003703/02/2021

The Safety Assessment Process, defined by SAE ARP4761 and associated regulatory guidance, is described in the context of conventional, crewed civil aircraft. While this material has been used for decades to evaluate airplanes and rotorcraft, the evolution of technology challenges it. As new entrants venture into aviation, they bring perspectives, which may not clearly align to those conventional concepts. For those skilled in the art of aviation safety assessment, the approach to new technologies might appear straight forward. Such an individual might easily perceive the accommodations for unconventional applications. Once accommodations are made, and failure conditions are established and classified to those new architectures, the rest of the process is somewhat mechanical -they flow out of these conditions. However, the context of their experience betrays the reality of the process description in the ARP and guidance. Such accommodations are not discussed in them, and the process

Voros, Robert

Improved Energy Management System for Airplane Electrical Power

2021-01-000803/02/2021

As commercial transport aircraft progress toward a future More Electric Airplane (MEA) there are numerous opportunities to improve energy management of the electrical power system. Improved energy management of the airplane electrical power system not only has the potential to decrease the weight and improve the efficiency of the system, but also to improve system stability and reliability. This paper analyzes re-architecting of an MEA airplane electrical power system in order to better manage the current electrical loads. It also considers the use of new sources of power generation and energy storage that would enable improved energy management for a new improved MEA such as fuel cells, batteries and super capacitors. The analysis uses data associated with current methods for calculating electrical loads and evaluates how the energy management of those loads can be improved with a better understanding of their usage in various flight phases, their criticality, and their power quality

Breit, Joseph Sherman

7.0.119 - Development of Combustion Solution Meeting CPCB II Emission Norms for Medium Duty Diesel Engines with Mechanical Fuel Injection System

SAE-PP-0029502/04/2021

Indian emission norms for stationary Gensets are upgraded from CPCB I to CPCB II. These new emission norms call for a significant change in emission limits. CPCB II emission norms call for 62% reduction in NOx+HC and 33% reduction in particulates for engines above 75 kW up to 800 kW power range compared to existing CPCB I norms. CPCB II norms are more stringent as compared to European Stage IIIA and CEV BS III. To meet equivalent emission norms in US and Europe most of the engine manufacturers have used Common Rail Direct Injection (CRDI) or electronic unit injection as the fuel injection technology. This paper describes mechanical fuel injection solution for meeting CPCB II emission norms on engines between 93 kW up to 552 kW with acceptable fuel consumption values. The paper presents simulation and experimentation work carried out to achieve the norms for the said power ratings. It describes the optimization strategy for controlling combustion related parameters viz. fuel injection

Lname, Fname

6.0.115 - Legal and Consumer Requirements in ASEAN Countries

SAE-PP-0027002/04/2021

South East Asia is one of the regions with highest traffic-related fatality rates worldwide −18.5 fatalities per 100.000 inhabitants-. In response to that, governments of ASEAN countries are currently introducing new regulations, which will help to improve the road safety standards in the region. This paper reviews new safety regulations in force of following ASEAN countries: Singapore, Thailand, Malaysia, Indonesia, Vietnam and the Philippines. General safety trends promote the approach to international standards as well as the adoption of UNECE regulations. In fact, the 1958 agreement was signed by Thailand and Malaysia in 2006. Besides, Malaysia has gradually adopted fifty-three UNECE regulations so far and is currently considering the inclusion of twenty-four more. After the success of other NCAP organizations, the ASEAN NCAP assessment program was established in 2011. This program is powered by the Malaysian Institute of Road Safety Research (MIROS) and the Global New Car

Mutagaana, Festo

Particle Swarm Optimization with Required Time of Arrival Constraint for Aircraft Trajectory

SAE-PP-0025502/03/2021

Global warming has motivated the aeronautical industry to develop new technologies that will reduce polluting emissions. A direct way to achieve this goal is to reduce fuel consumption. Reference trajectory optimization contributes to this goal by guiding aircraft to zones where meteorological conditions are favorable to execute their required missions and thereby to reduce flight costs. In this paper, the reference trajectory was optimized in terms of geographical position, altitude, and speed, by taking into account a required time of its arrival constraint and weather conditions. The algorithm assumes that there is no traffic and that the aircraft can fly anywhere in the search space. The search space was modeled in the form of a unidirectional weighted graph, fuel burn was computed using a numerical model, and the weather forecast was taken into account. The methodology utilized in this paper to determine the most economical combinations of parameters that delivered the optimal

Anthony, Lindsay

Vertical Take-Off & Landing Aircraft, VTOL Ground Effects

SAE-PP-0024102/03/2021

The ground-effect problems of loss of thrust and fountain-effect instabilities are quantified. Experiments to control and augment ground-effect lift and stability are presented, including jet momentum-reflection and fountain re-direction using various types of internal and external underbody ventral strakes. By strategically designing the VTOL ventral surface, reflection of the impinging fountain momentum is possible, so that instead of losing 10% thrust while in ground-effect, remarkably, thrust is augmented 10% or more, to a considerable height above the ground, in addition to stabilizing random pitch and roll moments caused by fountain instability.

Anthony, Lindsay, Jackson, Alyssa

062 - An Investigation on the Auto-Ignition of Fuel-Air Mixture Induced by Release of Oil-Fuel Droplets from Cylinder-Liner Using Multi-Zone Model

SAE-PP-0020101/30/2021

This study investigated effects of gas inhomogeneity induced by droplets of fuels and oils on the auto ignition timing and temperature in the direct-injection spark ignition (DISI) engine by means of detailed numerical calculation using multi zone model. Recent researchers pointed out that droplets are made of fuels and oils which mix on the cylinder liner and released from the cylinder liner [1]. During the compression stroke released droplets reach the auto ignition temperature before flame propagation induced by spark ignition. It is called Pre-ignition. In combustion chamber, there is inhomogeneity caused by temperature and mixture distribution. In this study, the effects of gas inhomogeneity produced by droplet on the auto ignition timing and temperature have been investigated using Multi-Zone model of CHEMKIN-PRO by changing initial temperature and initial equivalence ratio. Especially, the volume of first ignition zone is focused on. As for fuels, this study used n-heptane to

Mutagaana, Festo

Flight Test Procedures for Static Pressure Systems Installed in Subsonic Transport Aircraft

ARP921B (Current)

12/22/2020

This SAE Aerospace Recommended Practice (ARP) covers the test procedures and equipment for performing flight testing on pitot-static systems installed in subsonic transport type aircraft.

A-4 Aircraft Instruments Committee

Maximum-Allowable-Airspeed Instruments (Turbine Powered Subsonic Aircraft)

AS437B (Current)

12/22/2020

This SAE Aerospace Standard (AS) covers one type of maximum-allowable-airspeed instrument which gives a continuous indication of both indicated airspeed and maximum allowable airspeed not exceeding 650 knots.

A-4 Aircraft Instruments Committee

Automatic Pilots (Turbine Powered Subsonic Aircraft)

AS440B (Current)

12/22/2020

This SAE Aerospace Standard (AS) covers automatic pilots intended for use on aircraft to automatically operate the primary and trim aerodynamic controls to maintain stable flight and/or to provide maneuvering about any of the three axes through servo control. Automatic control functions essential for primary or augmented flight control are excluded.

A-4 Aircraft Instruments Committee

Maximum-Allowable-Airspeed Instruments (Turbine Powered Subsonic Aircraft)

AS437B-TEST-REC (Historical)12/22/2020

A-4 Aircraft Instruments Committee

Aircraft Cargo Door Opening/Sill Details for Ground Support Equipment Interface

AIR1673B (Current)11/23/2020

Manufacturers/designers of all aircraft equipped with a pallet/container capability have provided a means of linking the ground loaders/elevators with the aircraft sill for the smoother transfer of pallets and containers into or out of the aircraft holds. Use of the aircraft attachment points may be used as a means of averting damage to the aircraft door frames and other important parts. Latch-on guarantees fore and aft and vertical alignment of the loader bed with the aircraft doorway, when used in conjunction with the appropriate ground equipment. This SAE Aerospace Information Report (AIR) has been prepared by SAE Subcommittee AGE-2A to present a review of the current range of aircraft attachment points on wide body aircraft and those narrow body aircraft with a ULD cargo capability. Airline operators, who utilized these facilities, have been faced with a growing number of adaptor bars necessary to suit each type of aircraft and door position. There is also a stowage problem on the

AGE-2 Air Cargo

Aircraft Thermal Management System Engineering

AIR5744 (Current)

10/26/2020

The intent of this report is to encourage that the thermal management system architecture be designed from a global platform perspective. Separate procurements for air vehicle, propulsion system, and avionics have contributed to the development of aircraft that are sub-optimized from a thermal management viewpoint. In order to maximize the capabilities of the aircraft for mission performance and desired growth capability, overall system efficiency and effectiveness should be considered. This document provides general information about aircraft Thermal Management System Engineering (TMSE). The document also discusses approaches to processes and methodologies for validation and verification of thermal management system engineering. Thermal integration between the air vehicle, propulsion system, and avionics can be particularly important from a thermal management standpoint. Due to these factors, this report is written to encourage the development of a more comprehensive system

AC-9 Aircraft Environmental Systems Committee

Air Cargo Unit Load Devices - Performance Requirements and Test Parameters

AS36100C-TEST-REC (Historical)09/29/2020

This SAE Aerospace Standard (AS) defines the minimum performance requirements and test parameters for air cargo unit load devices requiring approval of airworthiness for installation in an approved aircraft cargo compartment and restraint system that complies with the cargo restraint requirements of Title 14 CFR Part 25, except for the 9.0-g forward ultimate inertia force of § 25.561 (b)(3)(ii).

AGE-2 Air Cargo

Air Cargo Unit Load Devices - Performance Requirements and Test Parameters

AS36100C (Current)

09/29/2020

AGE-2 Air Cargo

Aircraft Asset Lifecycle and Digital Data Standards Overview

AIR7501 (Current)

09/18/2020

This SAE Aerospace Information Report (AIR) reviews technical, operational, and maintenance data being exchanged between key stakeholders in aerospace asset lifecycle and data standards available for such exchanges. It identifies gaps and non-availability of data standards in certain areas. The scope of the current document is limited to aircraft operations, maintenance and disposal stages post-build phase, and does not include the detailed interactions during the aircraft build phase.

G-31 Electronic Transactions for Aerospace Committee

Aircraft Asset Lifecycle and Digital Data Standards Overview

AIR7501-TEST-REC (Historical)09/18/2020

G-31 Electronic Transactions for Aerospace Committee

Development and Qualification of Composite Landing Gears

AIR5552 (Current)09/17/2020

This information report provides general guidance for the design considerations, qualification in endurance, strength and fatigue of landing gear using composite components as principle structural elements. The information discussed herein includes the development and evaluation of design data considering: the potential for imbedded manufacturing defects, manufacturing process variations, the component operating environment, potential damage threats in service, rework and overhaul, and inspection processes. This AIR mainly discusses the use of thick composites for landing gear structural components. Considerations and recommendations provided in this AIR may therefore differ greatly from considerations and recommendations found in widely accepted composite design references such as CMH-17 and Advisory Circulars such as AC 20-107(B).

A-5B Gears, Struts and Couplings Committee

Information on Parking Brake Systems

AIR6441 (Current)09/16/2020

This SAE Aerospace Information Report (AIR) provides information on the parking brake system design for a variety of aircraft including part 23, 25, 27, and 29. The document includes a discussion of key technical issues with parking brakes. This document does NOT provide recommended practices for parking brake system design.

A-5A Wheels, Brakes and Skid Controls Committee

Identification and Assessment of Damage to Composite Aircraft Structures Training Document

AIR6825 (Current)

08/03/2020

Individuals who complete the applicable modules aligned with this training document will be able to define the type of damage, define the extent of damage, determine if further inspection is required, evaluate the damage against published allowable damage limits, and provide accurate documentation of the damage. The intended outcome of the training is increased safety such that no aircraft is released with unknown damage and that the aircraft meets continued airworthiness requirements. The goal is to change the culture from damage discovery to damage reporting while also reducing or eliminating flight delays due to incorrect or insufficient information. Teaching levels have been assigned to the curriculum to define the knowledge, skills, and abilities graduates will need. Minimum hours of instruction have been provided to ensure adequate coverage of all subject matter including lecture and practical exercise. These minimums may be exceeded and may include an increase in the total

AMS CACRC Commercial Aircraft Composite Repair Committee

Identification and Assessment of Damage to Composite Aircraft Structures Training Document

AIR6825-TEST-REC (Historical)08/03/2020

AMS CACRC Commercial Aircraft Composite Repair Committee

Safety Considerations for Airplane Lavatories

ARP1315E (Current)06/25/2020

This SAE Aerospace Recommended Practice (ARP) establishes safety recommendations for lavatories in transport category airplanes.

S-9B Cabin Interiors and Furnishings Committee

Approach to Landing Guidance System for Transport Aircraft

ARP4102/12B (Current)06/11/2020

This document specifies requirements for an Approach to Landing Guidance System (ALGS) electronic device. This equipment shall display relative aircraft position and situation information for flight along precision three-dimensional paths within the appropriate coverage area. The precision three-dimensional path may be an ILS straight-in look-alike path or a complex, curved path. The requirements are applicable to electronic devices capable of receiving signals or other information from one or more sources, including but not limited to ILS, GNSS, or IRU inputs.

S-7 Flight Deck Handling Qualities Stds for Trans Aircraft

Aircraft Ground Support Equipment - Wind Stability Determination

ARP1328D (Current)

04/29/2020

This SAE Aerospace Recommended Practice (ARP) is intended to recommend: a Uniform criteria for determination of wind loads that aircraft ground support equipment can encounter and yet allow personnel to work safely, b Uniform systems for maintaining stability (i.e., stabilizers, outriggers, spring lockout devices), c Standardization of specific types of interlock systems and actuation systems, d A standard formula with its associated design criteria for calculating the steady-state wind stability (i.e., tip point) for aircraft ground support equipment, e A standard method for testing these systems.

AGE-3 Aircraft Ground Support Equipment Committee

Aircraft Ground Support Equipment - Wind Stability Determination

ARP1328D-TEST-REC (Historical)04/29/2020

AGE-3 Aircraft Ground Support Equipment Committee

Comprehensibility Testing for Pictogram-Based Aircraft Signs and Placards

ARP8996-TEST-REC (Historical)04/27/2020

This SAE Aerospace Recommended Practice (ARP) applies to comprehensibility testing of aircraft markings, signs, and placards that are intended to provide information to passengers, crew, or ground personnel exclusively through pictorial symbols (pictograms). Markings, signs, and placards where text is complemented by pictograms are not in the scope of this document. In case text and pictograms are used in a redundant manner, comprehension testing is not required.

S-9B Cabin Interiors and Furnishings Committee

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