The exponential increase in the number of aircraft and air travelers has triggered new innovations aimed to make airline services more reliable and consumer friendly. Quick and efficient maintenance actions with minimum downtime are the need of the hour. Another major challenge is ensuring maintenance personnel are trained effectively; technology like augmented reality and Virtual Maintenance Trainers (VMTs) may provide safe and efficient training in lieu of live, instructor-led arrangements. And while traditional User/Maintenance Manuals provide useful information when dealing with simple machines, when dealing with complex systems of systems and miniaturized technologies, like unmanned aerial vehicles (UAVs), new technologies like augmented reality can rapidly and effectively support the maintenance operations.
The purpose of this SAE Recommended Practice is to promote the highest professional and personal conduct of practitioners in the fields of accident investigation and reconstruction. It encourages the continuous application of high ethical principles to one’s own endeavors. It also encourages the application of these same principles to others associated with accident investigation and reconstruction.
This SAE Standard covers reinforced hose, or hose assemblies, intended for conducting liquid and gaseous dichlorodifluoromethane (refrigerant 12) in automotive air-conditioning systems. The hose shall be designed to minimize permeation of refrigerant 12 and contamination of the system and to be serviceable over a temperature range of −30 to 120 °C (−22 to 248 °F). Specific construction details are to be agreed upon between user and supplier.1 NOTE—R12 refrigerant has been placed on a banned substance list due to its ozone depletion characteristics. SAE J51 specification will be phased out as new automotive A/C systems are using R134a. SAE J2064 is the Standard for refrigerant 134a hose. For refrigerant 134a use, refer to SAE J2064.
This SAE Standard covers the minimum requirements for a low-permeation tubing (100 g/m2·day or less) for use as a low pressure (14.5 kPa) liquid- or vapor-carrying component for use in gasoline or diesel fuel filler, vent, and vapor systems. The construction shall be designed to be functional over a temperature range of –40 °C to 100 °C for the T1 designation, or –40 °C to 125 °C for the T2 designation.
This SAE Standard outlines the requirements for a preformed thermosetting hose intended for use in heavy-duty vehicle engines, such as air cleaner to carburetor hose, where it is exposed to normal heat and splash of motor oil.
This SAE Parts Standard provides dimensional and quality assurance requirements for studs in the following configurations in standard materials used for ship system applications: a Continuous thread studs in UNRC and 8UNR series in the following threads and diameters: UNRC threads (1/4 through 4 inches) UNRF threads (1/4 through 1-1/2 inches) 8UNR threads (1-1/8 through 4 inches) b Double end studs (clamping type) where both ends are of the same minimum thread length in the following threads and diameters: UNRC threads (1/4 through 4 inches) UNRF threads (1/4 through 1-1/2 inches) 8UNR threads (1-1/8 through 4 inches) Different thread forms on each end are permissible. c Double end studs (tap end type) where the tap end thread length is equivalent to 1-1/2 nominal diameters: Tap End Thread Forms and Diameters Nut End Thread Forms and Diameters NC-5 interference-fit tap end threads (1/4 through 1-1/2 inches) UNRC threads (1/4 through 4 inches) UNRC threads (1/4 through 4 inches) UNRF threads (1/4 through 1-1/2 inches) UNRF threads (1/4 through 1-1/2 inches) 8UNR threads (1-1/8 through 4 inches) 8UNR threads (1-1/8 through 4 Inches)