ASTM F3082/F3082M-23a

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: F3082/F3082M − 23a
Standard Specification for
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Weights and Centers of Gravity of Aircraft
This standard is issued under the fixed designation F3082/F3082M; 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 Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
1.1 This specification establishes the airworthiness design
Barriers to Trade (TBT) Committee.
standards associated with aeroplane weight and center of
gravity.
2. Referenced Documents
1.2 The term “aeroplane” is utilized in this specification as 2
2.1 ASTM Standards:
it was originally conceived for normal category fixed wing
F3060 Terminology for Aircraft
aircraft with a maximum certificated weight of 19 000 lb or less
F3063/F3063M Specification for Aircraft Fuel Storage and
and a passenger seating configuration up to 19 as defined in the
Delivery
Rules. However, these standards may be more broadly appli-
cable and their usage should not be unnecessarily limited.
3. Terminology
1.3 The applicant for a design approval shall seek the 3.1 See Terminology F3060 for definitions and abbrevia-
individual guidance of their respective civil aviation authority
tions.
(CAA) body concerning the use of this specification as part of
4. Weight and CG Limits
a certification plan. For information on which CAA regulatory
bodies have accepted this specification (in whole or in part) as 4.1 Load Distribution Limits—The applicant must deter-
a means of compliance to their small aircraft airworthiness
mine limits for weights and centers of gravity that provide for
regulations (hereinafter referred to as “the Rules”), refer to the safe operation of the airplane.
ASTM Committee F44 webpage (www.astm.org/
4.1.1 Ranges of weights and centers of gravity within which
COMMITTEE/F44.htm), which includes CAA website links. the aeroplane may be safely operated shall be established. If a
weight and center of gravity combination is allowable only
1.4 Units—The values stated in either SI units or inch-
within certain lateral load distribution limits that could be
pound units are to be regarded separately as standard. The
inadvertently exceeded, these limits shall be established for the
values stated in each system may not be exact equivalents;
corresponding weight and center of gravity combinations.
therefore, each system shall be used independently of the other.
4.1.2 The load distribution limits shall not exceed any of the
Combining values from the two systems may result in non-
following:
conformance with the standard.
(1) The selected limits,
1.5 This standard does not purport to address all of the
(2) The limits at which the structure is proven, or
safety concerns, if any, associated with its use. It is the
(3) The limits at which compliance with each applicable
responsibility of the user of this standard to establish appro-
flight requirement is shown.
priate safety, health, and environmental practices and deter-
4.2 Removable Ballast—Removable ballast may be used in
mine the applicability of regulatory limitations prior to use.
showing compliance with the flight requirements if:
1.6 This international standard was developed in accor-
4.2.1 The place for carrying ballast is properly designed and
dance with internationally recognized principles on standard-
easily accessible to enable, during pre-flight inspection, that the
ization established in the Decision on Principles for the
ballast is properly installed.
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This specification is under the jurisdiction of ASTM Committee F44 on General
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Aviation Aircraft and is the direct responsibility of Subcommittee F44.20 on Flight. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Sept. 1, 2023. Published September 2023. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 2016. Last previous edition approved in 2023 as F3082/F3082M – 23. Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/F3082_F3082M-23A. the ASTM website.
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F3082/F3082M − 23a
TABLE 1 General Tolerances
4.2.2 Instructions are included in the aeroplane flight
manual, approved manual material, or markings and placards Item Tolerance
Weight +
...