ASTM F3065/F3065M-21a

Standard Specification for Aircraft Propeller System Installation

ABSTRACT
This specification covers airworthiness requirements for the installation and integration of propeller systems, and is applicable to aeroplanes as defined in F44 terminology standard. The applicant for a design approval must seek the individual guidance to their respective civil aviation authority (CAA) body concerning the use of this specification as part of a certification plan.
The requirements prescribed in this specification cover: propeller installation aspects (general propeller, feathering propellers, variable-pitch propellers, pusher propeller installation, propeller clearance), structural aspects (propeller vibration and fatigue), propeller control limitations (propeller speed and pitch limits, propeller reversing systems), and associated propeller systems (oil system-propeller feathering systems, turbopropeller-drag limiting systems).
SCOPE
1.1 This specification addresses the airworthiness requirements for the installation and integration of propeller systems.  
1.2 This specification is applicable to aeroplanes as defined in F44 terminology standard.  
1.3 The applicant for a design approval must seek the individual guidance to their respective CAA body concerning the use of this standard as part of a certification plan. For information on which CAA regulatory bodies have accepted this standard (in whole or in part) as a means of compliance to their Small Aircraft Airworthiness regulations (Hereinafter referred to as “the Rules”), refer to ASTM F44 webpage (www.ASTM.org/COMITTEE/F44.htm) which includes CAA website links. Annex A1 maps the Means of Compliance described in this specification to EASA CS-23, amendment 5, or later, and FAA 14 CFR Part 23, amendment 64, or later.  
1.4 Units—The values stated are SI units followed by Imperial units in square brackets. 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.

General Information

• Status: Published
• Publication Date: 30-Apr-2021
• ICS: 49.050 - Aerospace engines and propulsion systems
• Technical Committee: F44 - General Aviation Aircraft
• Drafting Committee: F44.40 - Powerplant

Standards Content (Sample)

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: F3065/F3065M −21a
Standard Specification for
1
Aircraft Propeller System Installation
ThisstandardisissuedunderthefixeddesignationF3065/F3065M;thenumberimmediatelyfollowingthedesignationindicatestheyear
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
2.1 ASTM Standards:
1.1 This specification addresses the airworthiness require-
F3060 Terminology for Aircraft
ments for the installation and integration of propeller systems.
3
2.2 EASA Standards:
1.2 This specification is applicable to aeroplanes as defined
CS-22 Subpart J Sailplanes and Powered Sailplanes: Propel-
in F44 terminology standard.
lers
CS-23 Certification Specifications for Normal-Category
1.3 The applicant for a design approval must seek the
Aeroplanes
individual guidance to their respective CAA body concerning
3
CS-P Propellers
the use of this standard as part of a certification plan. For
4
2.3 FAA Standards:
information on which CAA regulatory bodies have accepted
14 CFR Part 23 Airworthiness Standards: Normal Category
this standard (in whole or in part) as a means of compliance to
Airplanes
their Small Aircraft Airworthiness regulations (Hereinafter
14 CFR Part 35 Airworthiness Standards: Propellers
referred to as “the Rules”), refer to ASTM F44 webpage
(www.ASTM.org/COMITTEE/F44.htm) which includes CAA
3. Terminology
website links. Annex A1 maps the Means of Compliance
3.1 See Terminology F3060.
described in this specification to EASA CS-23, amendment 5,
or later, and FAA 14 CFR Part 23, amendment 64, or later.
4. Propeller Installation Aspects
1.4 Units—The values stated are SI units followed by
4.1 Propeller—General:
Imperial units in square brackets. The values stated in each
4.1.1 Each propeller must:
system are not necessarily exact equivalents; therefore, to
4.1.1.1 Have a type certificate, or
ensure conformance with the standard, each system shall be
4.1.1.2 Meet the requirements acceptable to the certifying
used independently of the other, and values from the two
aviation authority for inclusion in the approved aeroplane.
systems shall not be combined.
4.1.2 Enginepowerandpropellershaftrotationalspeedmay
not exceed the limits for which the propeller is certificated or
1.5 This standard does not purport to address all of the
approved.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- 4.2 Feathering Propellers—Each featherable propeller must
priate safety, health, and environmental practices and deter- have a means to un-feather in flight.
mine the applicability of regulatory limitations prior to use.
4.3 Variable-Pitch Propellers—The propeller blade pitch
1.6 This international standard was developed in accor-
control system shall meet the blade pitch control technical
dance with internationally recognized principles on standard- requirements that correspond to the technical requirements
ization established in the Decision on Principles for the used for the design of the propeller.
4.3.1 If the propeller meets the technical requirements of
Development of International Standards, Guides and Recom-
14 CFR Part 35 or equivalent, the propeller blade pitch control
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 [e-mail]. 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 EASA European Aviation Safety Agency, Postfach 10 12 53,
Current edition approved May 1, 2021. Published May 2021. Originally D-50452 Cologne, Germany, http://easa.europa.eu.
4
approved in 2015. Last previous edition approved in 2021 as F3065/F3065M–21. Available from U.S. Government Publishing Office (GPO), 732 N. Capitol St.,
DOI: 10.1520/F3065_F3065M-21A. NW, Washington, DC 20401, http://www.govinfo.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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F3065/F3065M − 21a
system shall meet the technical requirements of 14 CFR 35.21, 4.5.4.2 The clearance may be reduced if the spray does not
35.23, 35.42, and 35.43. dangerously obscure the visi
...

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: F3065/F3065M − 21 F3065/F3065M − 21a
Standard Specification for
1
Aircraft Propeller System Installation
This standard is issued under the fixed designation F3065/F3065M; 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 the airworthiness requirements for the installation and integration of propeller systems.
1.2 This specification is applicable to aeroplanes as defined in F44 terminology standard.
1.3 The applicant for a design approval must seek the individual guidance to their respective CAA body concerning the use of this
standard as part of a certification plan. For information on which CAA regulatory bodies have accepted this standard (in whole
or in part) as a means of compliance to their Small Aircraft Airworthiness regulations (Hereinafter referred to as “the Rules”), refer
to ASTM F44 webpage (www.ASTM.org/COMITTEE/F44.htm) which includes CAA website links. Annex A1 maps the Means
of Compliance described in this specification to EASA CS-23, amendment 5, or later, and FAA 14 CFR Part 23, amendment 64,
or later.
1.4 Units—The values stated are SI units followed by Imperial units in square brackets. 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.
2. Referenced Documents
2
2.1 ASTM Standards:
F3060 Terminology for Aircraft
2.2 OtherEASA Standards:
33
14 CFR Part 35 Airworthiness Standards: Propellers
CS-22 Subpart J Sailplanes and Powered Sailplanes: Propellers
CS-23 Certification Specifications for Normal-Category Aeroplanes
3
CS-P Propellers
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 Jan. 1, 2021May 1, 2021. Published March 2021May 2021. Originally approved in 2015. Last previous edition approved in 20192021 as
F3065/F3065M–19.–21. DOI: 10.1520/F3065_F3065M-21.10.1520/F3065_F3065M-21A.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from EASA European Aviation Safety Agency, Postfach 10 12 53, D-50452 Cologne, Germany, http://easa.europa.eu.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F3065/F3065M − 21a
4
2.3 FAA Standards:
14 CFR Part 23 Airworthiness Standards: Normal Category Airplanes
14 CFR Part 35 Airworthiness Standards: Propellers
3. Terminology
3.1 See Terminology F3060.
4. Propeller Installation Aspects
4.1 Propeller—General:
4.1.1 Each propeller must:
4.1.1.1 Have a type certificate, or
4.1.1.2 Meet the requirements acceptable to the certifying aviation authority for inclusion in the approved aeroplane.
4.1.2 Engine power and propeller shaft rotational speed may not exceed the limits for which the propeller is certificated or
approved.
4.2 Feathering Propellers—Each featherable propeller must have a means to un-feather in flight.
4.3 Variable-Pitch Propellers—The propeller blade pitch control system shall meet the blade pitch control technical requirements
that correspond to the technical requirements used for the design of the propeller.
4.3.1 If the propeller meets the technical requirements of 14 CFR part 14 CFR Part 35 or equivalent, the propeller blade pitch
control system shall meet
...