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Guide to Certification of Aircraft in a High-Intensity Radiated Field (HIRF) Environment

2020-01-28
WIP
ARP5583B
This guide provides detailed information, guidance, and methods related to the Federal Aviation Administration Advisory Circular (AC)/Joint Airworthiness Authorities Advisory Material Joint (AMJ) 20-XXX, "Certification of Aircraft Electrical/Electronic Systems for Operation in the High Intensity Radiated Fields (HIRF) Environment" (draft). The AC/AMJ provides acceptable means, but not the only means, of compliance with Parts 23, 25, 27, and 29 of the Federal Aviation Regulations (FAR)/Joint Aviation Regulations (JAR) to prevent hazards to aircraft electrical and electronic systems due to HIRF produced by external transmitters. This guide is neither mandatory nor regulatory in nature and does not constitute a regulation or legal interpretation of the regulation. The information in this guide represents a collection of best engineering practices that have been used to certify aircraft HIRF protection.
Standard

Performance Specification for Cable-to-Terminal Electrical Crimps

2020-01-22
CURRENT
USCAR21-4
This specification defines test methods and requirements for validation of solderless crimped connections. The purpose of this test is to simulate in the lab the stress seen in a typical life (15 years and 150000 miles) for a crimp connection and assure the crimp is mechanically strong and electrically stable. This specification was developed for use with stranded automotive copper wire. Only where specifically mentioned are other constructions or other core materials (aluminum, clad, steel core, etc.) applicable. This specification does not apply to wire types not mentioned, such as coaxial cable crimps, unless a USCAR-21 test is specifically referenced in the test specification for that wire type. This specification is based on accepted levels of environmental exposure for automotive applications.
Standard

Aerospace Electrical Voltage Level definitions

2020-01-21
WIP
AIR7502
It is the expectation that for electric propulsion even higher voltages in the range of 1 - 3 kV and higher are needed. The introduction of hybrid or electrical propulsion, will also affect the system architecture of the electrical power system. This report shall set forth the aerospace voltage level definitions.
Standard

Design and Development of Rechargeable Lithium Battery Systems for Aerospace Applications

2020-01-21
CURRENT
AIR6343
This AIR is intended to provide a basic overview of methodologies that should be utilized when undertaking the design and development of rechargeable lithium battery systems for aerospace applications. The battery system includes the battery cells, monitoring and control electronics, and battery charger as applicable. The methodologies presented herein apply to “installed” equipment which would be part of the original or supplemental type certification or military airframe qualification.
Standard

Barometry for Altimeter Calibration

2020-01-15
WIP
AIR1075B
This SAE Aerospace Information Report (AIR) is concerned only with aspects directly relating to available accuracy. While well-designed photoelectric, inductive or capacitive readers and pressure regulators, and other accessories are highly desirable for convenience and production rate, they are considered to be outside the scope of this AIR. This AIR is intended to define three classes of barometers, working, reference and transfer and some aspects of their use so that altimeters and air data transducers calibrated aginst working barometers will be comparable. An accuracy of ±0.003 inch (or ±0.076 mm) Hg should be approachable with working barometers meeting the recommendations in this AIR.
Standard

Maintenance of Pitot-Static Systems of Transport Aircraft

2020-01-15
WIP
AIR975B
In efforts to increase the accuracy and reliability of altimetry, speed measurement and other aspects of air data, a great deal of attention and money have been expended on new and refined pressure transducing and computing systems and on the standards by which they are calibrated. So much progress has been made in this that the limiting factor is, or may soon be, the sensing and transmitting in the aircraft of the pressure to be transduced. Until the appearance of References 1 - 13 and 18 there was little guidance available on the maintenance of pitot and static systems. This report presents what information is available, suggests limits, and lists the principal original papers on the subject. To set forth in a single document the principles and practices for maintenance of pitot and static pressure systems of transport aircraft.
Standard

Wire, Electrical, Stranded, Uninsulated Copper, Copper Alloy, or Aluminum, or Thermocouple Extension, General Specification For

2020-01-10
WIP
AS29606A
This specification covers concentric lay stranded and rope-lay stranded round electrical conductor fabricated from copper, copper alloy or aluminum. This specification also covers thermocouple extension conductor fabricated from nickel/chromium or nickel/aluminum/manganese. The conductors in this specification are suitable for use in insulated wires used in aerospace and other applications.
Standard

Performance Levels and Methods of Measurement of Electromagnetic Compatibility of Vehicles, Boats (up to 15 m), and Machines (16.6 Hz to 18 GHz)

2020-01-10
CURRENT
J551/1_202001
This SAE Standard covers the measurement of radio frequency radiated emissions and immunity. Each part details the requirements for a specific type of electromagnetic compatibility (EMC) test and the applicable frequency range of the test method. The methods are applicable to a vehicle, boat, machine or device powered by an internal combustion engine or battery powered electric motor. Operation of all engines or motors (main and auxiliary) of a vehicle, boat, machine or device is included. All equipment normally operating when the vehicle, boat, machine or device is in operation is included. Operator controlled equipment is included or excluded as specified in the individual document parts. As a special case, CISPR 12 applies to battery powered floor finishing equipment, but robot carpet sweepers are excluded. By reference, IEC CISPR 12 and CISPR 25 are adopted as the standards for the measurement of vehicle emissions.
Standard

Heavy Duty High Speed Datalink Connector

2020-01-08
CURRENT
J2839_202001
This SAE Recommended Practice defines the performance requirements, size and mating interfaces for M12 style 4 and 5 pole Heavy Duty High Speed Datalink connection systems, and applies to both cable-to-cable and cable-to-device connectors.
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