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Giving the blind the freedom to drive A Virginia Tech student team answers a call to action by the National Federation of the Blind's Jernigan Institute. 'Ultimate Youthmobile' of 2030 At the 2009 LA Auto Show, California designers envision the future. BMW's six-cylinder motorcycle Concept points to possible production bike. Modeling and simulation put emphasis on early planning The shift to model-based design and simulation is changing the way aircraft are designed, shifting the focus to the early phases of development. Early planning is critical for success, as is establishing techniques that ensure that files move freely between various work teams.
Alternative fuels heat up This is a rich time for combustion researchers. The need for better fuel efficiency and improved emissions has never been greater. New software model to help engine makers meet diesel soot standards Simulation enables engineers to predict particulate formation early in the design process.
Inductive approach An engineering professor from Ryerson uses MapleSim to introduce more exploratory methods of teaching. Monash University scores fourth Formula SAE-A win The Monash University Formula SAE-A team demonstrated its dominance by winning its fourth consecutive Australasian event in Melbourne last December. Audi Urban Intelligent Assist The three-year joint effort between Audi AG, the Volkswagen Group Electronics Research Laboratory (ERL) in Belmont, CA, the University of Southern California, the University of California at Berkeley, and the University of California at San Diego aimed at improving drivers' information and decision-making capabilities. Hovering aircraft programs The AW609 tiltrotor and the X3 compound helicopter offer different technology solutions to the challenge of achieving higher speeds and higher-quality point-to-point air transport.
WIP Standard
This SAE Aerospace Information Report (AIR) presents metrics for assessing the performance of diagnostic and prognostic algorithms applied to Engine Health Management (EHM) functions. This document consolidates and expands upon the metric information previously contained in AIR4985 and AIR5909. The emphasis is entirely on metrics and as such is intended to provide an extension and complement to such documents as ARP4176, which provides insight into how to create a cost benefit analysis to determine the justification for implementing an EHM system.
WIP Standard
To provide a method that accounts for the attenuation due to line-of-sight blockage of aircraft noise by terrain features.
WIP Standard
This SAE Aerospace Information Report (AIR) provides a tabular listing of materials, procurement specifications, and mechanical properties for bolts and screws developed for use on aerospace propulsion systems designed using the U.S. customary system or the SI system.

The list is intended to give a brief overview of the various kinds of SAE aerospace procurement specifications available when developing bolt and screw part standards.

WIP Standard
This standard should provide accurate fuel consumption prediction methods throughout the flight regime. The standard should apply to any fixed-wing, turbofan or turbojet-powered airplane.
WIP Standard
This SAE Aerospace Information Report (AIR) examines the need for and the application of a power train usage metric that can be used to more accurately determine the TBO for helicopter transmissions. It provides a formula for the translation of the recorded torque history into mechanical usage. It provides examples of this process and recommends a way forward. This document of the SAE HM-1 IVHM Committee is not intended as a legal document and does not provide detailed implementation steps, but does address general implementation concerns and potential benefits.
WIP Standard
The scope of this document will consider a broader range of contaminants than ARP4418. In addition, it may provide guidance for measuring on wing, as well as in test cells, Finally, it may also discuss transient measurements, as well as steady state measurements.
WIP Standard
This SAE Aerospace Information Report (AIR) has been written for individuals associated with ground level testing of turbofan and turbojet engines and particularly for those who might be interested in investigating the performance characteristics of a new test cell design or of proposed modifications to an existing test cell by means of numerical modeling and simulation.
WIP Standard
This SAE Aerospace Recommended Practice (ARP) provides best practices and guidance for creating an architecture for integrated vehicle health management systems. Where possible, this document will also provide references to tools to conduct architectural trades. Finally, this document will provide use cases to expose considerations and stakeholders to be included in these trades and utilization of an IVHM system (which may lead to new functional or non-functional requirements).
WIP Standard
This SAE Aerospace Recommended Practice (ARP) provides guidelines for the design of Integrated Vehicle Health Management (IVHM) systems. This guidance is technology-independent; the principles are therefore generally applicable to the majority of potential IVHM design scenarios, including “clean sheet” system design, where IVHM is considered as a primary design consideration and the retrofit of existing systems with IVHM capability, where the design process leverages and supports existing system elements. In either case, the document will provide guidance on the design considerations for an IVHM system throughout the analysis, concept development, and synthesis stages of the IVHM Design process and provide discussion for the users’ consideration on the trades, metrics, and lifecycle impacts of IVHM design decisions.
WIP Standard
The ARP shall cover the objectives and activities of Verification & Vallidation Processes required to assure high quality and/or criticality level of an IVHM Systems and Software.
WIP Standard
A rough outline of the document is as follows: 1. Introduction to IVHM and rationale for the document 2. Identification of different (internal and external) stakeholders. Customers, maintenance personnel, sales and marketing and finance. Systems designers, RM&S experts, etc. Need to link requirements to design rationale, including a cost-benefit-analysis. 3. Requirements breakdown structures, from high level system requirements to lower level sub-system requirements, and finally down to component specifications. 4. Links to other systems engineering processes such as V&V, architecture design, program milestones, etc. 5. Examples of good and bad requirement practices. Maybe individual case studies or an example of an entire system. 6. Conclusions.
WIP Standard
This Aerospace Recommended Practice (ARP) identifies and defines methods of compliance to power available and inlet distortion requirements for rotorcraft with Inlet Barrier Filter (IBF) installations. The advisory material developed therein may be used as acceptable methods of compliance for determining power assurance, establishing power available, and for substantiating acceptable engine inlet distortion for IBF installations. It is agreed to treat dust, ice, salt water & snow as contaminants to IBF for the purpose of establishing power available and distortion. Flight in known icing will be addressed in ARP6901.
WIP Standard
The scope of these standards will relate to single-axis moment scales only. Topics covered include dimensional characteristics of single-axis moment scale interfaces, general tooling requirements, scale and tooling accuracy, and display instrument accuracy requirements. Additionally, general guidelines for qualification of equipment and tooling are included, as are general requirements for single-axis blade distribution software.
WIP Standard
This Aerospace Recommended Practice (ARP) offers best practice regarding the implementation of IVHM systems taking into account Human Factors, both the vehicle crew and the maintenance staff. The document will include considerations regarding both military and civil fixed wing aircraft. Safety implications will also be addressed.
WIP Standard
In order to realize the benefits of Integrated Vehicle Health Management (IVHM) within the aerospace and defense industry there is a need to address five critical elements of data interoperability within and across the aircraft maintenance ecosystem, namely • Approach • Trust • Context • Value • Security In Integrated Vehicle Health Management (IVHM) data interoperability is the ability of different authorized components, systems, IT, software, applications and organizations to securely communicate, exchange data, interpret data, use the information and derive consistent insight from the data that has been exchanged to derive value.
WIP Standard
Turbine engines installed in rotorcraft have an exhaust system that is designed and produced by the aircraft manufacturer. The primary function of the exhaust system is to direct hot exhaust gases away from the airframe. The exhaust system may consist of a tailpipe, which is attached to the engine, and an exhaust fairing, which is part of the rotorcraft. The engine manufacturer specifies a baseline "referee" tailpipe design, and guaranteed engine performance is based upon the use of the referee tailpipe and tailpipe exit diameter. The configuration used on the rotorcraft may differ from the referee tailpipe, but it is intended to minimize additional losses attributed to the installation. This Aerospace Recommended Practice (ARP) describes the physical, functional, and performance interfaces to be considered in the design of the aircraft exhaust system.
WIP Standard
The goal of this new Aerospace Information Report is to supplement the content of AS6327™ and provide a reference document for the new Aerospace Standard. This new Aerospace Information Report will serve as a practical resource that offers guidance to the machine operator and Process Engineer for isolating the source(s) of non-repeatability in measured unbalance data. The content will include: • Machine Capability to achieve the specified unbalance tolerances and repeat within those tolerances • Tooling Capability to repeat within the specified unbalance tolerances • Rotor characteristics that may preclude repeating within the required unbalance tolerances.
WIP Standard
This AIR will address the need for a strategy to achieve aircraft operating certificate holder maintenance efficiencies within the existing regulatory environment as well as the need for regulation, policy, and guidance changes in the long-term to accommodate more complex IVHM solutions. This document will analyse which IVHM solutions can be incorporated within existing maintenance procedures and which also comply with regulations, policy, and guidance. One of the AIR’s objectives is to define best practices for aircraft operating certificate holders to engage with regulators to get approval for simpler IVHM applications leading to maintenance efficiencies. Additionally, this document will analyse the barriers that existing regulations, policy, and guidance present to the implementation of more advanced IVHM solutions. The result is a set of recommendations to certify and implement end-to-end IVHM solutions for the purpose of gaining maintenance efficiencies.
WIP Standard
This SAE Aerospace Standard (AS) covers high strength thin wall (commercial) metric sockets, universal metric sockets, metric box wrenches and metric torque adaptors which possess the strength, clearances, and internal wrenching design so configured that, when mated with 12 point fasteners conforming to the requirement of ISO 4095, they shall transmit torque to the fastener without bearing on the outer 5% of the fastener's wrenching points. This standard provides additional requirements beyond ASME B107.100 and B107.5M appropriate for aerospace use. Inclusion of dimensional data in this document is not intended to imply that all of the products described herein are stock production sizes. Consumers are requested to consult with manufacturers concerning lists of stock production sizes. The dimensional limits of box and combination wrench lengths have been established to provide configuration control for tool storage applications.
WIP Standard
This document establishes process parameters for gas turbine rotor balancing. Adherence to the recommendations made herein will facilitate attainment of the usually high degree of accuracy and precision required for jet engine rotor balance.
WIP Standard
This specification covers high strength ratcheting wrenches used for attachment and detachment of high strength and high temperature aircraft fasteners.
WIP Standard
This procurement specification covers inserts made from A286 alloy of the type identified under the Unified Numbering System as UNS S66286, solid film lubricated with a plastic self locking device, integrated locking keys to positively secure the insert against rotation when properly installed in threaded holes.
WIP Standard
Test procedures are described for measuring noise at specific receiver locations (passenger and cargo doors, and servicing positions) and for conducting general noise surveys around aircraft. Procedures are also described for measuring noise level and directivity at noise source locations to facilitate the understanding and interpretation of the data. Requirements are identified with respect to instrumentation; acoustic and atmospheric environment; data acquisition, reduction and presentation, and such other information as is needed for reporting the results. This document makes no provision for predicting APU or component noise from basic engine characteristics or design parameters, nor for measuring noise of more than one aircraft operating at the same time. No attempt is made to suggest acceptable levels of noise or suitable subjective criteria for judging acceptability. ICAO Annex 16 Volume I Attachment C provides guidance on recommended maximum noise levels.
WIP Standard
This document establishes general design criteria, tolerances, and limits of application for tooling, fixtures and accessories for mounting and driving gas turbine engine rotors on horizontal and vertical balancing machines. For your own safety, while using balancing tooling, regard the safety instructions of the individual supplier.
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