This SAE Aerospace Recommended Practice (ARP) covers the requirements for the types of glass to be utilized in the fabrication of cover glasses and lighting wedges used in aerospace instruments. It defines the maximum extent of physical defects and recommends standard methods of inspection and evaluation. Definitions of terminology used in this document are covered in 2.2.

A-20A Crew Station Lighting Committee

Orthopedic Replacement Implants Market: Drivers and Developments

TBMG-3245608/01/2018

The global market for minor orthopedic replacement implants exceeded $1.5 billion in 2017. Analysts from The Business Research Company forecast the market value to grow at a rate of over 7 percent and to reach $2.2 billion in 2021 in their report “Minor Orthopedic Replacement Implants.”1 According to the report, the primary reason for this growth is the high incidence of arthritis and fractures. Osteoarthritis and rheumatoid arthritis are the major causes for joint replacement surgery, including minor orthopedic joints. The other cause for joint replacement surgery is failed previous joint replacement surgery. This article examines the trends that are driving this market, including a look at materials, regions, procedures, and regulatory developments that are shaping the future of orthopedic implants.

Cold Start HD FTP Test Results on Multi-Cylinder Opposed-Piston Engine Demonstrating Rapid Exhaust Enthalpy Rise to Achieve Ultra Low NOx

2018-01-137804/03/2018

The 2010 emission standards for heavy-duty diesel engines in the U.S. have established a limit for oxides of nitrogen (NOx) emissions of 0.20 g/bhp-hr., a 90% reduction from the previous emission standards. However, it has been projected that even when the entire on-road fleet of heavy-duty vehicles operating in California is compliant with the 2010 emission standards, the upcoming National Ambient Air Quality Standards (NAAQS) requirement for ambient particulate matter and ozone will not be achieved in California without further significant reductions in NOx emissions from the heavy-duty vehicle fleet. Given this, there is potential of further reduction in NOx emissions limit standards for heavy duty engines in the US. Recently there have been extensive studies and publications focusing on ultra-low NOx after treatment technologies that help achieve up to 0.02g/bhp-hr. at tailpipe [1]. To achieve ultra-low NOx emission levels over the composite HD FTP cycle, rapid heat energy must be

Patil, Samrat, Ghazi, Ahmad, Redon, Fabien, Sharp, Christopher, Schum, Dan, Headley, John

Making the Switch from Manual Squeeze Bottles to Benchtop Fluid Dispensing

TBMG-2868204/01/2018

Depositing small, repeatable volumes of fluid in assembly applications spans a diverse range of industries. The ability to deposit precise amounts of material is an ever-increasing necessity for manufacturers, particularly when assembling electronics and medical devices. These fluids must be dispensed reliably, accurately, and with consistent repeatability in dosage and placement. The precise positioning and quantity of the fluids deposited is integral to the assembly, function, quality, appearance, and viability of the final products being manufactured.

Magnetic Particle Acceptance Criteria for Parts

AMS2442A (Current)02/25/2018

This specification establishes acceptance criteria for discontinuities revealed by magnetic particle inspection of parts made from wrought, ferromagnetic materials.

AMS B Finishes Processes and Fluids Committee

Direct Delivery Authorization Guidance for Aerospace Companies

ARP9107A (Current)

11/09/2017

Limited to the commercial aerospace industry where a request is made for a PO to have Direct Delivery Authorization (DDA), which includes an Appropriate Arrangement (AA) between the PO and the Design Organization (DO). In this process the DO is responsible for ensuring the continuous updating of design and airworthiness data to the PO, whilst the PO is responsible for assurance that the manufactured article conforms to approved design and airworthiness data. The PO is responsible to provide airworthiness release documentation.

G-14 Americas Aerospace Quality Standards Committee (AAQSC)