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ASTM F2506-22

(Specification)

Standard Specification for Design and Testing of Light Sport Aircraft Propellers

Standard Specification for Design and Testing of Light Sport Aircraft Propellers

ABSTRACT
This specification covers the establishment of the minimum requirements for the design, testing, and quality assurance of fixed-pitch or ground adjustable propellers for light sport aircraft. The propeller may not have design features that have been shown to be hazardous or unreliable unless the suitability of each questionable design detail or part can be established by tests. Strength testing; stress measurement, fatigue strength, and fatigue analysis, endurance testing, and teardown inspection shall be performed to meet the requirements prescribed.
SCOPE
1.1 This specification covers the establishment of the minimum requirements for the design, testing, and quality assurance of fixed-pitch or ground adjustable propellers for light sport aircraft. These propellers are used on light aircraft, and could be used with engines conforming to Practice F2339.  
1.1.1 When applying the additions provided in Appendix X1, this specification also covers the establishment of the minimum requirements for the design, testing and quality assurance of in-flight adjustable propellers for light-sport aircraft.  
1.2 This specification is intended for use by manufacturers of propellers for light sport aircraft.  
1.3 This specification does not address the airframe installation requirements for propellers.  
1.4 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 to determine the applicability of regulatory limitations prior to use.  
1.5 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-Sep-2022
ICS
49.050 - Aerospace engines and propulsion systems
Technical Committee
F37 - Light Sport Aircraft
Drafting Committee
F37.70 - Cross Cutting
Current Stage
Ref Project

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ASTM F2506-22 - Standard Specification for Design and Testing of Light Sport Aircraft PropellersASTM F2506-22 - Standard Specification for Design and Testing of Light Sport Aircraft Propellers
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ASTM F2506-22 - Standard Specification for Design and Testing of Light Sport Aircraft Propellers
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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:F2506 −22
Standard Specification for
1
Design and Testing of Light Sport Aircraft Propellers
This standard is issued under the fixed designation F2506; 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 3. Terminology
1.1 This specification covers the establishment of the mini- 3.1 Definitions:
mum requirements for the design, testing, and quality assur- 3.1.1 blade, n—the aerodynamic portion of a propeller
ance of fixed-pitch or ground adjustable propellers for light which is rotated through and acts on the air.
sport aircraft. These propellers are used on light aircraft, and
3.1.2 blade root, n—the portion of the blade that interfaces
could be used with engines conforming to Practice F2339.
with the hub and provides retention.
1.1.1 When applying the additions provided in Appendix
3.1.3 conventional fixed pitch propeller, n—a one-piece
X1, this specification also covers the establishment of the
fixed pitch propeller that is constructed of material such as
minimum requirements for the design, testing and quality
woodormetalthathasnoabruptchangesinmaterialproperties
assurance of in-flight adjustable propellers for light-sport
as the blades transition through the hub area.
aircraft.
3.1.3.1 Discussion—A propeller with wooden blades
1.2 This specification is intended for use by manufacturers
bonded to a metallic hub would not be conventional.
of propellers for light sport aircraft.
3.1.4 fixed pitch propeller, n—a propeller with no capacity
1.3 This specification does not address the airframe instal-
for pitch setting adjustment.
lation requirements for propellers.
3.1.5 ground adjustable propeller, n—a propeller whose
1.4 This standard does not purport to address all of the
pitch setting is adjustable only when the aircraft is on the
safety concerns, if any, associated with its use. It is the
ground and the propeller is not rotating.
responsibility of the user of this standard to establish appro-
3.1.6 hub, n—any device that retains the blades of a propel-
priate safety, health, and environmental practices and to
ler assembly.
determine the applicability of regulatory limitations prior to
3.1.7 pitch setting, n—the propeller blade setting as deter-
use.
mined by the blade angle measured in a manner, and at a
1.5 This international standard was developed in accor-
radius, specified by the instruction manual for the propeller.
dance with internationally recognized principles on standard-
3.1.8 propeller, n—a device for propelling an aircraft that
ization established in the Decision on Principles for the
has blades on an engine-driven shaft and that, when rotated,
Development of International Standards, Guides and Recom-
produces by its action on the air, a thrust approximately
mendations issued by the World Trade Organization Technical
perpendicular to its plane of rotation.
Barriers to Trade (TBT) Committee.
2. Referenced Documents 4. General
2
2.1 ASTM Standard: 4.1 Eachmanufacturerwhoclaimscompliancetothisspeci-
F2339 Practice for Design and Manufacture of Reciprocat- fication must be able to show compliance with the applicable
ing Spark Ignition Engines for Light Sport Aircraft requirements of this specification.
4.2 Manufacturers must prepare and make available a list of
acceptable engine-propeller combinations.
1
This specification is under the jurisdiction of ASTM Committee F37 on Light
Sport Aircraft and is the direct responsibility of Subcommittee F37.70 on Cross 4.3 Manufacturers must prepare and make available an
Cutting.
operating manual or manuals containing, at minimum, the
Current edition approved Oct. 1, 2022. Published November 2022. Originally
following information:
approved in 2007. Last previous edition approved in 2013 as F2506 – 13, which was
4.3.1 Anoveralldescriptionofthepropelleranditsfeatures.
withdrawn in January 2022 and reinstated in October 2022. DOI: 10.1520/F2506-
22.
4.3.2 The mass moment of inertia of the propeller about its
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
rotational axis.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
4.3.3 Instructions for installation of the propeller.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 4.3.4 Instructions for operation of the propeller.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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SCOPE
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