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    ASTM F3233 / F3233M - 21

    Standard Specification for Flight and Navigation Instrumentation in Aircraft

    Active Standard ASTM F3233 / F3233M | Developed by Subcommittee: F44.50

    Book of Standards Volume: 15.09


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    1. Scope

    1.1 This specification covers flight and navigation instrumentation aspects of airworthiness and design. The material was developed through open consensus of international experts in general aviation. This information was created by focusing on Level 1, 2, 3, and 4 Normal Category aeroplanes; however, the content may be more broadly applicable, and should not be unduly limited. The topics covered within this specification are flight and navigation instruments including those for airspeed, altitude, attitude, heading, free air temperature, and speed warning.

    1.2 The applicant for a design approval shall seek the individual guidance of their respective CAA body concerning the use of this specification as part of a certification plan. For information on which CAA regulatory bodies have accepted this specification (in whole or in part) as a means of compliance to their Small Aircraft Airworthiness regulations (hereinafter referred to as “the Rules”), refer to ASTM F44 webpage (www.ASTM.org/COMMITTEE/F44.htm), which includes CAA website links.

    1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.

    1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

    1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    F3060 Terminology for Aircraft

    F3061/F3061M Specification for Systems and Equipment in Small Aircraft

    F3116/F3116M Specification for Design Loads and Conditions

    F3117/F3117M Specification for Crew Interface in Aircraft

    F3120/F3120M Specification for Ice Protection for General Aviation Aircraft

    F3174/F3174M Specification for Establishing Operating Limitations and Information for Aeroplanes

    F3229/F3229M Practice for Static Pressure System Tests in Small Aircraft

    F3230 Practice for Safety Assessment of Systems and Equipment in Small Aircraft


    ICS Code

    ICS Number Code 49.020 (Aircraft and space vehicles in general)

    UNSPSC Code

    UNSPSC Code 25202100(Flight instrumentation)


    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/F3233_F3233M-21

    Citation Format

    ASTM F3233 / F3233M-21, Standard Specification for Flight and Navigation Instrumentation in Aircraft, ASTM International, West Conshohocken, PA, 2021, www.astm.org

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