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ASTM-F3491:2021 Edition

ASTM-F3491:2021 Edition

$29.79

F3491-21 Standard Practice for Enhanced Indication Methods in Aircraft

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ASTM 2021
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ASTM F3491-21

Active Standard: Standard Practice for Enhanced Indication Methods in Aircraft

ASTM F3491

Scope

1.1 This practice provides methods for how Enhanced Indications are provided to the responsible crewmember when an applicant uses these indications in support of compliance with the requirements for Stall Characteristics, Stall Warning, and Spins applicable to Normal Category Aeroplanes, using Specification F3180/F3180M.

1.2 The specific types of enhanced indications identified in Specification F3180/F3180M are as follows:

1.3 An applicant intending to propose this information as Means of Compliance for a design approval must seek guidance from their respective oversight authority (for example, published guidance from applicable civil aviation authority (CAA) concerning the acceptable use and application thereof. For information on which oversight authorities have accepted this practice (in whole or in part) as an acceptable Means of Compliance to their regulatory requirements (hereinafter “the Rules”), refer to the ASTM Committee F44 web page (www.astm.org/COMMITTEE/F44.htm).

1.4 Units—This document may present information in SI units, English Engineering units, or both. 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.

1.5 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.

1.6 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.

Keywords

alert; dynamic; enhanced indication; indication; symbology;

ICS Code

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

DOI: 10.1520/F3491-21

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