This SAE Aerospace Recommended Practice (ARP) establishes the method for qualification testing of tube joints and fitting attachments, using the flexure test method described in ARP1185. This qualification test method allows the determination of S-N type stress versus cycles or D-N type deflection versus cycles curves, as illustrated in AIR1418 as an alternate to flexure testing to a minimum endurance stress level.
This SAE Aerospace Recommended Practice (ARP) addresses the general procedure for the best practices for minimizing uncertainty when calibrating thermal conductivity and cold cathode vacuum gauges, which includes the vacuum sensor(s) and accompanying electronics necessary for a pressure measurement to be made. It also includes the best practices for an in-process verification where limitations make it impossible to follow the best practices for minimizing uncertainty.
This SAE Aerospace Standard (AS) establishes the requirements for 24° cone flareless fluid connection fittings and nuts, internally or externally swaged, preset, or welded sleeves for use in aircraft fluid systems at nominal operating pressures up to and including 3000 psi.
This standard establishes the basic triangular profile for the MJB thread form, the design profiles, standard pitches, tolerance classes, formulae for tolerances and dimensions, tolerance tables, and a system of designations. Because of the specialized application for buttress threads, no preferred diameter-pitch series have been established for this standard and each application will require use of the thread formulae for dimensions and related tolerances given herein for deriving the thread dimensional requirements.
The aim of this document is to establish a standardized approach for Human Subject Testing considering varying performance requirements of different user groups on aircraft as Flight Crew, Cabin Crew and Passengers. The document will provide guidance for definition of significant topics relevant to equipment and system certification. The document will include information regarding ethical aspects, criteria to select human subjects for testing, safety of test subjects, requirements to medical personnel to attend tests and in particular if humans are exposed to elevated altitudes. Recommendation will be provided regarding test result monitoring and data validity