ASTM F2339-17
(Practice)Standard Practice for Design and Manufacture of Reciprocating Spark Ignition Engines for Light Sport Aircraft
Standard Practice for Design and Manufacture of Reciprocating Spark Ignition Engines for Light Sport Aircraft
SIGNIFICANCE AND USE
2.1 This practice provides designers and manufacturers of engines for light sport aircraft design references and criteria to use in designing and manufacturing engines.
2.2 Declaration of compliance is based on testing and documentation during the design and testing or flight testing of the engine type by the manufacturer or under the manufacturers' guidance.
SCOPE
1.1 This practice covers minimum requirements for the design and manufacture of reciprocating spark ignition engines for light sport aircraft, VFR use.
1.2 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.
1.3 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: F2339 − 17
Standard Practice for
Design and Manufacture of Reciprocating Spark Ignition
1
Engines for Light Sport Aircraft
This standard is issued under the fixed designation F2339; 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 3.3 Design Changes of Parts—Each design change of a part
or component of an engine model qualified to this specification
1.1 This practice covers minimum requirements for the
should be evaluated relative to the requirements of this
design and manufacture of reciprocating spark ignition engines
specification.
for light sport aircraft, VFR use.
1.2 This standard does not purport to address all of the
4. Data Requirements
safety concerns, if any, associated with its use. It is the
4.1 Retained Data—The following data and information
responsibility of the user of this standard to establish appro-
should be retained on file at the manufacturer’s facility for at a
priate safety, health, and environmental practices and deter-
minimum of 18 years after production is discontinued.
mine the applicability of regulatory limitations prior to use.
1.3 This international standard was developed in accor- 4.1.1 Drawings that define the engine configuration.
dance with internationally recognized principles on standard- 4.1.2 Material and process specifications referenced in the
ization established in the Decision on Principles for the
parts drawings.
Development of International Standards, Guides and Recom-
4.1.3 Engineering analyses and test data prepared for quali-
mendations issued by the World Trade Organization Technical
fication with this specification.
Barriers to Trade (TBT) Committee.
4.2 Delivered Data—The following data should be deliv-
ered to the airplane manufacturer to support design and
2. Significance and Use
operation of the applicable airplane.
2.1 This practice provides designers and manufacturers of
4.2.1 An engine performance specification that defines the
engines for light sport aircraft design references and criteria to
engine performance under all anticipated operating environ-
use in designing and manufacturing engines.
ments.
2.2 Declaration of compliance is based on testing and
4.2.2 An installation manual that defines all functional and
documentation during the design and testing or flight testing of
physical interface requirements of the engine. This should
the engine type by the manufacturer or under the manufactur-
include an engine outline/installation drawing.
ers’ guidance.
4.2.3 An operating manual that defines normal and abnor-
mal operating procedures and any applicable operating limita-
3. Engine Model Designation
tions.
4.2.4 A maintenance manual that defines periodic installed
3.1 Engine Parts List—A parts list is required for each
maintenance, major inspection, overhaul intervals, and any
engine model qualified in accordance with this specification.
other maintenance limitations.
3.2 New Engine Model Designations:
4.2.5 An overhaul manual that provides instruction for
3.2.1 Each new engine model must be qualified in accor-
disassembling the engine to replace or repair, or both, parts as
dance with this practice.
required to return the engine to airworthy condition that is safe
3.2.2 Design or configuration changes that impact the in-
for operation until the next major overhaul.
stallation interface, performance, or operability of the engine
require a new engine model designation.
5. Design Criteria
5.1 Materials—The materials used in the engine must be
adequate for the intended design conditions of the engine.
1
This practice is under the jurisdiction ofASTM Committee F37 on Light Sport
Aircraft and is the direct responsibility of Subcommittee F37.70 on Cross Cutting.
5.2 Fire Prevention—The design and construction of the
Current edition approved Dec. 1, 2017. Published February 2018. Originally
engine and the materials used must minimize the probability of
approved in 2004. Last previous edition approved in 2009 as F2339 – 06 (2009).
DOI: 10.1520/F2339-17. the occurrence and spread of fire by:
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
F2339 − 17
5.2.1 Using fire-resistant lines, fittings, and other compo- pressure in the crankcase. This venting must have a means to
nents that contain a flammable liquid when supplied with the prevent the blockage of the vent by ice.
engine; and
5.9 Vibration General—The engine must be designed and
5.2.2 Shielding or locating components to safeguard against
constructed to function throug
...
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: F2339 − 06 (Reapproved 2009) F2339 − 17
Standard Practice for
Design and Manufacture of Reciprocating Spark Ignition
1
Engines for Light Sport Aircraft
This standard is issued under the fixed designation F2339; 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 practice covers minimum requirements for the design and manufacture of reciprocating spark ignition engines for light
sport aircraft, VFR use.
1.2 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.3 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. Significance and Use
2.1 This practice provides designers and manufacturers of engines for light sport aircraft design references and criteria to use
in designing and manufacturing engines.
2.2 Declaration of compliance is based on testing and documentation during the design and testing or flight testing of the engine
type by the manufacturer or under the manufacturers’ guidance.
3. Engine Model Designation
3.1 Engine Parts List—A parts list is required for each engine model qualified in accordance with this specification.
3.2 New Engine Model Designations:
3.2.1 Each new engine model must be qualified in accordance with this practice.
3.2.2 Design or configuration changes that impact the installation interface, performance, or operability of the engine require
a new engine model designation.
3.3 Design Changes of Parts—Each design change of a part or component of an engine model qualified to this specification
should be evaluated relative to the requirements of this specification.
4. Data Requirements
4.1 Retained Data—The following data and information should be retained on file at the manufacturer’s facility for at a
minimum of 18 years after production is discontinued.
4.1.1 Drawings that define the engine configuration.
4.1.2 Material and process specifications referenced in the parts drawings.
4.1.3 Engineering analyses and test data prepared for qualification with this specification.
4.2 Delivered Data—The following data should be delivered to the airplane manufacturer to support design and operation of
the applicable airplane.
4.2.1 An engine performance specification that defines the engine performance under all anticipated operating environments.
4.2.2 An installation manual that defines all functional and physical interface requirements of the engine. This should include
an engine outline/installation drawing.
4.2.3 An operating manual that defines normal and abnormal operating procedures and any applicable operating limitations.
1
This practice is under the jurisdiction of ASTM Committee F37 on Light Sport Aircraft and is the direct responsibility of Subcommittee F37.70 on Cross Cutting.
Current edition approved Jan. 1, 2009Dec. 1, 2017. Published March 2009February 2018. Originally approved in 2004. Last previous edition approved in 20062009 as
F2339 – 06.F2339 – 06 (2009). DOI: 10.1520/F2339-06R09.10.1520/F2339-17.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
F2339 − 17
4.2.4 A maintenance manual that defines periodic installed maintenance, major inspection, overhaul intervals, and any other
maintenance limitations.
4.2.5 An overhaul manual that provides instruction for disassembling the engine to replace or repair, or both, parts as required
to return the engine to airworthy condition that is safe for operation until the next major overhaul.
5. Design Criteria
5.1 Materials—The materials used in the engine must be adequate for the intended design conditions of the engine.
5.2 Fire Prevention—The design and construction of the engine and the materials used must minimize the probability of the
occurrence and spread of fire by:
5.2.1 Using fire-resistan
...
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