ASTM F3239-19
(Specification)Standard Specification for Aircraft Electric Propulsion Systems
Standard Specification for Aircraft Electric Propulsion Systems
SCOPE
1.1 This specification addresses airworthiness requirements for the design and installation of electric propulsion systems for aeroplanes. Hybrid-electric propulsion systems are addressed implicitly unless explicitly stated otherwise. This specification was written with the focus on electric propulsion systems with conventional system layout, propulsion characteristics, and operation. The content may be more broadly applicable; it is the responsibility of the applicant to substantiate broader applicability as a specific means of compliance.
1.2 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 CAAs) concerning the acceptable use and application thereof. For information on which oversight authorities have accepted this standard (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).
1.3 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.
1.4 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.
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Designation:F3239 −19
Standard Specification for
1
Aircraft Electric Propulsion Systems
This standard is issued under the fixed designation F3239; 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
2
1.1 This specification addresses airworthiness requirements
2.1 ASTM Standards:
for the design and installation of electric propulsion systems
F3060 Terminology for Aircraft
for aeroplanes. Hybrid-electric propulsion systems are ad-
F3061/F3061M Specification for Systems and Equipment in
dressed implicitly unless explicitly stated otherwise. This
Small Aircraft
specification was written with the focus on electric propulsion
F3062/F3062M Specification forAircraft Powerplant Instal-
systems with conventional system layout, propulsion
lation
characteristics, and operation. The content may be more
F3063/F3063M Specification for Aircraft Fuel and Energy
broadly applicable; it is the responsibility of the applicant to
Storage and Delivery
substantiate broader applicability as a specific means of com-
F3064/F3064M Specification for Aircraft Powerplant
pliance.
Control, Operation, and Indication
F3065/F3065M Specification for Aircraft Propeller System
1.2 An applicant intending to propose this information as
Installation
Means of Compliance for a design approval must seek guid-
F3066/F3066M Specification forAircraft Powerplant Instal-
ance from their respective oversight authority (for example,
lation Hazard Mitigation
published guidance from applicable CAAs) concerning the
acceptable use and application thereof. For information on F3114/F3114M Specification for Structures
F3116/F3116M Specification for Design Loads and Condi-
which oversight authorities have accepted this standard (in
whole or in part) as an acceptable Means of Compliance to tions
F3120/F3120M Specification for Ice Protection for General
their regulatory requirements (hereinafter “the Rules”), refer to
the ASTM Committee F44 web page (www.astm.org/ Aviation Aircraft
COMMITTEE/F44.htm). F3316/F3316M Specification for Electrical Systems forAir-
craft with Electric or Hybrid-Electric Propulsion
1.3 This standard does not purport to address all of the
F3338 Specification for Design of Electric Propulsion Units
safety concerns, if any, associated with its use. It is the
for General Aviation Aircraft
responsibility of the user of this standard to establish appro-
3
priate safety, health, and environmental practices and deter-
2.2 FAA Standard:
mine the applicability of regulatory limitations prior to use. AC23-16 Powerplant Guide for Certification of Part 23
1.4 This international standard was developed in accor-
Airplanes
dance with internationally recognized principles on standard- 4
2.3 Code of Federal Regulations:
ization established in the Decision on Principles for the
14 CFR Part 1 Definitions and Abbreviations
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
2
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
1
ThisspecificationisunderthejurisdictionofASTMCommitteeF44onGeneral Standards volume information, refer to the standard’s Document Summary page on
Aviation Aircraft and is the direct responsibility of Subcommittee F44.40 on the ASTM website.
3
Powerplant. Available from Federal Aviation Administration (FAA), 800 Independence
Current edition approved Sept. 1, 2019. Published September 2019. Originally Ave., SW, Washington, DC 20591, http://www.faa.gov.
4
approved in 2018. Last previous edition approved in 2018 as F3239–18. DOI: Available from U.S. Government Publishing Office, 732 N. Capitol St., NW,
10.1520/F3239–19. Washington, DC 20401, http://www.gpo.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
F3239−19
5
2.4 EASA Specification: 5.1.1 Each energy distribution system shall meet the appli-
CS-Definitions Definitions and Abbreviations Used in Cer- cable requirements of Specification F3063/F3063M and
tificationSpecificationsforProducts,PartsandAppliances F3316/F3316M.
5.1.2 Each energy distribution system shall safely provide
3. Terminology
sufficient power to each EPU under the most critical operating
conditions.
3.1 The following is a selection of relevant terms. See
5.1.3 The combined usable energy capacity of all energy
Terminology F3060 for more definitions and abbreviations.
storage systems sha
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F3239 − 18 F3239 − 19
Standard Specification for
1
Aircraft Electric Propulsion Systems
This standard is issued under the fixed designation F3239; 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
1.1 This specification addresses airworthiness requirements for the design and installation of electric propulsion systems for
aeroplanes. Hybrid-electric propulsion systems are addressed implicitly unless explicitly stated otherwise. This specification was
written with the focus on electric propulsion systems with conventional system layout, propulsion characteristics, and operation.
The content may be more broadly applicable; it is the responsibility of the applicant to substantiate broader applicability as a
specific means of compliance.
1.2 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 CAAs) concerning the acceptable use and
application thereof. For information on which oversight authorities have accepted this standard (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).
1.3 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.
1.4 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
2
2.1 ASTM Standards:
F3060 Terminology for Aircraft
F3061/F3061M Specification for Systems and Equipment in Small Aircraft
F3062/F3062M Specification for Aircraft Powerplant Installation
F3063/F3063M Specification for Aircraft Fuel and Energy Storage and Delivery
F3064/F3064M Specification for Aircraft Powerplant Control, Operation, and Indication
F3065/F3065M Specification for Aircraft Propeller System Installation
F3066/F3066M Specification for Aircraft Powerplant Installation Hazard Mitigation
F3114/F3114M Specification for Structures
F3116/F3116M Specification for Design Loads and Conditions
F3120/F3120M Specification for Ice Protection for General Aviation Aircraft
F3316/F3316M Specification for Electrical Systems for Aircraft with Electric or Hybrid-Electric Propulsion
F3338 Specification for Design of Electric Propulsion Units for General Aviation Aircraft
3
2.2 FAA Standards:Standard:
AC23-16 Systems and Equipment Powerplant Guide for Certification of Part 23 Airplanes and Airships
4
2.3 Code of Federal Regulations:
14 CFR Part 1 Definitions and Abbreviations
1
This specification is under the jurisdiction of ASTM Committee F44 on General Aviation Aircraft and is the direct responsibility of Subcommittee F44.40 on Powerplant.
Current edition approved Sept. 1, 2018Sept. 1, 2019. Published September 2018September 2019. Originally approved in 2018. Last previous edition approved in 2018
as F3239–18. DOI: 10.1520/F3239-18.10.1520/F3239–19.
2
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 Standards
volume information, refer to the standard’sstandard’s Document Summary page on the ASTM website.
3
Available from Federal Aviation Administration (FAA), 800 Independence Ave., SW, Washington, DC 20591, http://www.faa.gov.
4
Available from U.S. Government Publishing Office, 732 N. Capitol St., NW, Washington, DC 20401, http://www.gpo.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
F3239 − 19
5
2.4 EASA Specification:
CS-Definitions Definitions and Abbreviations Used in Certification Specifications for Products, Parts and Appliances
3. Terminology
3.1 The following is a selection of relevant terms. See Termin
...
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