ASTM F2538-07a
(Practice)Standard Practice for Design and Manufacture of Reciprocating Compression Ignition Engines for Light Sport Aircraft
Standard Practice for Design and Manufacture of Reciprocating Compression Ignition Engines for Light Sport Aircraft
SIGNIFICANCE AND USE
This practice provides designers and manufacturers of engines for light sport aircraft design references and criteria to use in designing and manufacturing engines.
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 manufacturer’guidance.
SCOPE
1.1 This practice covers minimum requirements for the design and manufacture of reciprocating compression ignition engines for light sport aircraft, Visual Flight Rules (VFR) use.
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 and health practices and determine the applicability of regulatory limitations prior to use.
General Information
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Standards Content (Sample)
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Designation:F2538–07a
Standard Practice for
Design and Manufacture of Reciprocating Compression
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Ignition Engines for Light Sport Aircraft
This standard is issued under the fixed designation F2538; 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 4.2 New Engine Model Designations:
4.2.1 Each new engine model must be qualified in accor-
1.1 This practice covers minimum requirements for the
dance with this practice.
design and manufacture of reciprocating compression ignition
4.2.2 Design or configuration changes that impact the in-
engines for light sport aircraft, Visual Flight Rules (VFR) use.
stallation interface, performance, or operability of the engine
1.2 This standard does not purport to address all of the
require a new engine model designation.
safety concerns, if any, associated with its use. It is the
4.3 Design Changes of Parts—Each design change of a part
responsibility of the user of this standard to establish appro-
or component of an engine model qualified to this practice
priate safety and health practices and determine the applica-
should be evaluated relative to the requirements of this
bility of regulatory limitations prior to use.
practice.
2. Referenced Documents
5. Data Requirements
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2.1 RTCA Documents:
5.1 Retained Data—The following data and information
RTCA DO-178 Software Considerations in Airborne Sys-
should be retained on file at the manufacturer’s facility for a
tems and Equipment Certification
minimum of 18 years after production is discontinued:
RTCA DO-254 Design Assurance Guidance for Airborne
5.1.1 Drawings that define the engine configuration,
Electronic Hardware
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5.1.2 Material and process specifications referenced in the
2.2 FAA Documents:
parts drawings, and
FAAAC 33.28–2 Guidance Material 14 CFR 33.28 Recip-
5.1.3 Engineering analyses and test data prepared for quali-
rocation Engines, Electrical and Electronic Control Sys-
fication with this practice.
tems
5.2 Delivered Data—The following data should be deliv-
3. Significance and Use ered to the airplane manufacturer to support design and
operation of the applicable airplane.
3.1 This practice provides designers and manufacturers of
5.2.1 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.
3.2 Declaration of compliance is based on testing and
5.2.2 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.
er’s guidance.
5.2.3 An operating manual that defines normal and abnor-
4. Engine Model Designation
mal operating procedures and any applicable operating limita-
tions; this manual shall include instructions for use of appro-
4.1 Engine Parts List—A parts list is required for each
priate engine monitoring gauges, electronic or otherwise.
engine model qualified in accordance with this practice.
5.2.4 A maintenance manual that defines periodic installed
maintenance, major inspection, overhaul intervals, and any
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This practice is under the jurisdiction ofASTM Committee F37 on Light Sport
other maintenance limitations.
Aircraft and is the direct responsibility of Subcommittee F37.70 on Cross Cutting.
5.2.5 If applicable (or if overhauls are authorized by the
Current edition approved May 1, 2007. Published June 2007. Originally
manufacturer), an overhaul manual that provides instruction
approved in 2007. Last previous edition approved in 2007 as F2538 – 07. DOI:
10.1520/F2538-07A.
for disassembling the engine to replace or repair, or both, parts
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Available from RTCA, Inc., 1828 L Street, NW, Suite 805, Washington, DC
as required to return the engine to airworthy condition that is
20036. www.rtca.org
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safe for operation until the next major overhaul.
Available from U.S. Department of Transportation, Federal Aviation Adminis-
tration, 800 Independence Avenue, SW, Washington, DC 20591. www.faa.gov
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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F2538–07a
6. Design Criteria 6.8 Lubrication System:
6.8.1 The lubrication system of the engine must be designed
6.1 Materials—The materials used in the engine must be
and constructed so that it will function properly in all flight
adequate for the in
...
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