ASTM F3093/F3093M-19

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: F3093/F3093M −19
Standard Specification for
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Aeroelasticity Requirements
This standard is issued under the fixed designation F3093/F3093M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2. Referenced Documents
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1.1 This specification covers the aeroelasticity requirements 2.1 ASTM Standards:
of the aeroplane. The material was developed through open F3061/F3061M Specification for Systems and Equipment in
consensus of international experts in general aviation. This Small Aircraft
information was created by focusing on Level 1, 2, 3, and 4 F3065/F3065M Specification for Aircraft Propeller System
Normal Category aeroplanes. The content may be more Installation
broadly applicable; it is the responsibility of the Applicant to F3115/F3115M Specification for Structural Durability for
substantiate broader applicability as a specific means of com- Small Airplanes
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pliance. The topics covered within this document are: 2. 2.2 Federal Aviation Administration (FAA) Document:
Referenced Documents, 3. Terminology, 4. Flutter. Airframe and Equipment Engineering Report No. 45 (as
corrected) “Simplified Flutter Prevention Criteria” 1955
1.2 An applicant intending to propose this information as
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2.3 Federal Aviation Regulations:
Means of Compliance for a design approval must seek guid-
14 CFR 23 Amendment 62
ance from their respective oversight authority (for example,
published guidance from applicable CAAs) concerning the
3. Terminology
acceptable use and application thereof. For information on
3.1 Definitions:
which oversight authorities have accepted this standard (in
3.1.1 GVT—ground vibration testing
whole or in part) as an acceptable Means of Compliance to
3.1.2 V-n—velocity versus load factor
their regulatory requirements (hereinafter “the Rules”), refer to
the ASTM Committee F44 web page (www.astm.org/
4. Flutter
COMMITTEE/F44.htm).
4.1 It must be shown by the methods in 4.2, and either 4.3
1.3 Units—Thisdocumentmaypresentinformationineither
or 4.4, that the aeroplane is free from flutter, control reversal,
SI units, English Engineering units, or both. The values stated
and divergence for any condition of operation within the limit
in each system are not necessarily exact equivalents; therefore,
V-n envelope and at all speeds up to the speed specified for the
to ensure conformance with the standard, each system shall be
selected method. In addition:
used independently of the other, and values from the two
4.1.1 Adequate tolerances must be established for quantities
systems shall not be combined.
which affect flutter, including speed, damping, mass balance,
1.4 This standard does not purport to address all of the
and control system stiffness; and
safety concerns, if any, associated with its use. It is the
4.1.2 Thenaturalfrequenciesofmainstructuralcomponents
responsibility of the user of this standard to establish appro-
must be determined by vibration tests or other approved
priate safety, health, and environmental practices and deter-
methods. This determination is not required for Level 1
mine the applicability of regulatory limitations prior to use.
aeroplanes with V up to 260 kph [140 knots] CAS and
D
1.5 This international standard was developed in accor-
maximum gross weight up to 750 kg [1650 lbm].
dance with internationally recognized principles on standard-
4.2 Flight flutter tests must be made to show that the
ization established in the Decision on Principles for the
aeroplane is free from flutter, control reversal, and divergence,
Development of International Standards, Guides and Recom-
and to show that:
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
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ThisspecificationisunderthejurisdictionofASTMCommitteeF44onGeneral Standards volume information, refer to the standard’s Document Summary page on
Aviation Aircraft and is the direct responsibility of Subcommittee F44.30 on the ASTM website.
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Structures. Available from Federal Aviation Administration (FAA), 800 Independence
Current edition approved Feb. 15, 2019. Published March 2019. Originally Ave., SW, Washington, DC 20591, http://www.faa.gov.
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approved in 2015. Last previous edition approved in 2015 as F3093/F3093M–15. Available from U.S. Government Publishing Office, 732 N. Capitol St., NW,
DOI: 10.1520/F3093_F3093M–19. Washington, DC 20401, http://www.gpo.gov.
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