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Standard

Fundamentals in Wire Selection and Sizing for Aerospace Applications

2019-10-10
WIP
AIR6540A

The scope of this report is to capture fundamental principles of selecting a wire size for an aerospace application using the method prescribed in the AS50881 standard and additional calculations, not found in AS50881, to ensure the wire selection will adequately perform in the specific physical and environment conditions.

This report covers wire selection and sizing as part of the electrical wire interconnection systems (EWIS) used in aerospace vehicles. Aerospace vehicles include manned and unmanned airplanes, helicopters, lighter-than-air vehicles, missiles, and external pods. This document does not apply to wiring inside of airborne electronic equipment but shall apply to wiring externally attached to such equipment.

Standard

Cost Versus Benefits of Engine Monitoring Systems

2019-10-01
WIP
AIR4176B
The purpose of this SAE Aerospace Information Report (AIR) is to provide information that would be useful to potential users/operators and decision makers for evaluating and quantifying the benefits of an Engine Monitoring Systems (EMS) versus its cost of implementation. This document presents excerpts from reports developed to analyze "actual aircraft cost/benefits results". These are presented as follows: a. First, to outline the benefits and cost elements pertaining to EMS that may be used in performing a cost versus benefits analysis. b. Second, to present considerations for use in conducting the analysis. c. Third, to provide examples of analyses and results as they relate to the user/operator and decision-maker community. The document encompasses helicopters and fixed wing aircraft and distinguishes between civilian and military considerations.
Standard

Heater and Accessories, Aircraft Internal Combustion Heat Exchanger Type

2019-10-01
CURRENT
AS8040C
This SAE Aerospace Standard (AS) covers combustion heaters and accessories used in, but not limited to, the following applications: a. Cabin heating (all occupied regions and windshield heating) b. Wing and empennage anti-icing c. Engine and accessory heating (when heater is installed as part of the aircraft) d. Aircraft deicing
Standard

SAE Aerospace Applied Thermodynamics Manual Aerothermodynamic Systems Engineering and Design

2019-09-24
CURRENT
AIR1168/3A
This document is one of 14 Aerospace Information Reports (AIR) of the Third Edition of the SAE Aerospace Applied Thermodynamics Manual. The manual provides a reference source for thermodynamics, aerodynamics, fluid dynamics, heat transfer, and properties of materials for the aerospace industry. Procedures and equations commonly used for aerospace applications of these technologies are included.
Standard

Bolts, Screws and Nuts - External Wrenching UNJ Thread, Inch - Design Standard

2019-09-19
WIP
AS1132K

The scope of this SAE Aerospace Standard (AS) is to define the following dimensional requirements for double hexagon, hexagon head and tee headed bolts, and nuts with AS8879 UNJ inch series threads primarily for use in propulsion systems. Design requirements are based on UNJC threads for sizes 0.1640 and smaller and UNJF threads for sizes 0.1900 and larger.

Bolts

a. Head configurations and dimensions (see 3.1)

b. Shank configurations and dimensions (see 3.2)

c. Geometric control (see 3.3)

d. Surface texture (see 3.4)

Nuts

a. Configurations and dimensions (see 4.1)

b. Geometric control (see 4.2)

c. Surface texture (see 4.3)

Standard

Rivets, Carbon Steel Procurement Specification for

2019-09-16
WIP
AS7225B
This procurement specification covers aircraft-quality solid rivets and tubular end rivets made from a carbon steel of the type identified under the Unified Numbering System as UNS G10100.

Primarily for joining steel parts where a low shear strength is adequate and destruction of the fastener for repair or replacement is permissible.

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