ASTM F3380-19

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.
Designation: F3380 − 19
Standard Practice for
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Structural Compliance of Very Light Aeroplanes
This standard is issued under the fixed designation F3380; 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 priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
1.1 This practice covers simplified methods for satisfying
1.5 This international standard was developed in accor-
structural requirements of very light aeroplanes. The material
dance with internationally recognized principles on standard-
wasdevelopedthroughopenconsensusofinternationalexperts
ization established in the Decision on Principles for the
in general aviation. This information was created by focusing
Development of International Standards, Guides and Recom-
on Level 1 Normal Category aeroplanes which have a single
mendations issued by the World Trade Organization Technical
engine, a maximum take-off mass of not more than 750 kg
Barriers to Trade (TBT) Committee.
(1654 lbm), a stalling speed in the landing configuration of not
more than 83 km/h (45 knots) Calibrated Airspeed (CAS), an
2. Referenced Documents
unpressurized fuselage, and are non-aerobatic. The content
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2.1 ASTM Standards:
may be more broadly applicable; it is the responsibility of the
F3114 Specification for Structures
applicant to substantiate broader applicability as a specific
F3115 Specification for Structural Durability for Small Air-
means of compliance. The topics covered within this practice
planes
are: Parts of Structure Critical to Safety, Material Strength
F3060 Terminology for Aircraft
Properties and Design Values, Design Properties, and Special
2.2 Other Documents:
Factors.
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ANC-18 Design of Wood Aircraft Structures
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1.2 An applicant intending to propose this information as
CMH-17 Composite Materials Handbook
Means of Compliance for a design approval must seek guid-
EASACM-S-006 CertificationMemorandum-Certification,
ance from their respective oversight authority (for example,
Type Design Definition, Material and Process Qualifica-
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published guidance from applicable Civil Aviation Authorities
tion for Composite Light Aircraft
(CAAs)) concerning the acceptable use and application
EASA CS-VLA/Amendment 1 Certification Specifications
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thereof. For information on which oversight authorities have
for Very Light Aeroplanes
accepted this practice (in whole or in part) as an acceptable
3. Terminology
Means of Compliance to their regulatory requirements (here-
inafter “the Rules”), refer to the ASTM Committee F44 web
3.1 Definitions:
page (www.astm.org/COMMITTEE/F44.htm).
3.1.1 A and B Values—See CMH-17.
1.3 Units—The values stated in SI units are to be regarded
3.2 See Terminology F3060 for additional definitions and
as standard. The values given in parentheses after SI units are
abbreviations.
provided for information only and are not considered standard.
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1.4 This standard does not purport to address all of the
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
safety concerns, if any, associated with its use. It is the
Standards volume information, refer to the standard’s Document Summary page on
responsibility of the user of this standard to establish appro-
the ASTM website.
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Issued June 1944 by the Army-Navy-Civil Committee on Aircraft Design
Criteria (USA). Available from Smithsonian Library, https://library.si.edu/digital-
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This practice is under the jurisdiction of ASTM Committee F44 on General library/book/designofwoodairc00fore.
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Aviation Aircraft and is the direct responsibility of Subcommittee F44.30 on Available from SAE International (SAE), 400 Commonwealth Dr.,Warrendale,
Structures. PA 15096, http://www.sae.org.
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Current edition approved Aug. 1, 2019. Published September 2019. DOI: Available from European Union Aviation Safety Agency (EASA), Konrad-
10.1520/F3380–19. Adenauer-Ufer 3, D-50668 Cologne, Germany, https://www.easa.europa.eu.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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F3380 − 19
4. Significance and Use 7. Special Factors
4.1 The purpose of this practice is to establish simplified
7.1 For composite structures, a special test factor that takes
methods that can be used to satisfy the materi
...