This SAE Metric Aerospace Standard (MA) establishes the requirements for fluid fittings that combine both weld fitting end and 24° cone flareless fitting end connections for use in all types of metric fluid systems.
The CAESAR (Civilian American and European Surface Anthropometry Resource) research project was a landmark study that has brought us the most current data on civilian body measurements. This final report details the methodology of the study and the data gathering process. It gives detailed explanation on the survey instruments used, how the study was conducted and who was included to achieve a valid demographic sampling. The product provides a wealth of information on this large scale and statistically valid research project.
The electric vehicle industry - land, water and air - is rapidly rising to become a market of over $533 billion by 2025. Some run entirely on harvested energy as with solar lake boats. Others recycle energy as with regenerative braking of cars, buses and military vehicles harvesting kinetic energy. Others use different forms of harvesting either to charge the traction batteries, or to drive autonomous device. In some cases, harvesting is making completely new forms of electric vehicle possible such as "glider" Autonomous Underwater Vehicles (AUVs) that can stay at sea for years, gaining electricity from both wave power and sunshine. Multiple forms of energy harvesting on one vehicle are becoming more common from cars to superyachts.
This SAE Metric Aerospace Recommended Practice (MAP) establishes the requirements for preparing a specification for fluid couplings for spacecraft servicing. The objective of this document is to provide design, development, verification, storage, and delivery requirement guidelines for the preparation of specifications for fluid couplings and the ancillary hardware for use with serviceable spacecraft designed for use in the space environment. The couplings shall be capable of resupplying storable propellants, cryogenic liquids, and gases to a variety of spacecrafts.
To establish recommended hole sizes for use with protruding head metric threaded fasteners primarily used on propulsion equipment, and provide the recommended positional tolerance for use with these holes.
This SAE metric Aerospace Recommended Practice (MAP) lists wrenching surface sizes and tolerances for fluid fittings which utilize machined or unmachined hex bar dimensions and machined or forged wrenching surfaces across the center body section of shape fittings.
The purpose of this MAP is to establish stud hole clearance diameters to accept standard Metric studs. This is based entirely on recommendations set forth by the International Organization for Standardization (ISO). ISO Recommendations R273, Clearance Holes for Metric Bolts (Fine series) and R286, ISO System of Limits and Fits (H14 series) were used to establish the size and tolerance for each stud hole in the MAP.