ASTM F2612-07

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Designation: F2612 − 07
StandardPractice for
Design and Manufacture of Turbine Engines for Unmanned
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Aircraft System
This standard is issued under the fixed designation F2612; 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. Data Requirements
1.1 This practice covers minimum requirements for the 4.1 Retained Data—The following data and information
design and manufacture of turbine engines for unmanned shall be retained on file at the manufacturer’s facility for at a
aircraft systems. minimum of 18 years after production is discontinued.
4.1.1 Drawings that define the engine configuration.
1.2 This standard does not purport to address all of the
4.1.2 Material and process specifications referenced in the
safety concerns, if any, associated with its use. It is the
parts drawings.
responsibility of the user of this standard to establish appro-
4.1.3 Engineering analyses and test data prepared for quali-
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. fication with this specification.
4.2 Delivered Data—The following data shall be delivered
2. Significance and Use
to the airplane manufacturer to support design and operation of
the applicable airplane.
2.1 This practice provides designers and manufacturers of
turbine engines for Unmanned Aircraft Systems design refer- 4.2.1 An engine performance specification that defines the
ences and criteria to use in designing and manufacturing engine performance under all anticipated operating environ-
engines. ments.
4.2.2 An installation manual that defines all functional and
2.2 Declaration of compliance is based on testing and
physical interface requirements of the engine. This shall
documentation during the design and testing or flight testing of
include an engine outline/installation drawing.
the engine type by the manufacturer or under the manufactur-
4.2.3 An operating manual that defines normal and abnor-
ers’ guidance.
mal operating procedures and any applicable operating limita-
tions.
3. Engine Model Designation
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
disassembling the engine to replace or repair, or both, parts as
3.2.1 Each new engine model must be qualified in accor-
required to return the engine to airworthy condition that is safe
dance with this practice.
for operation until the next major overhaul.
3.2.2 Design or configuration changes that impact the in-
stallation interface, performance, or operability of the engine
5. Design Criteria
require a new engine model designation.
5.1 Materials—The materials used in the engine must be
3.3 Design Changes of Parts—Each design change of a part
adequate for the intended design conditions of the engine.
or component of an engine model qualified to this specification
should be evaluated relative to the requirements of this
5.2 Fire Prevention—The design and construction of the
specification.
engine and the materials used must minimize the probability of
the occurrence and spread of fire by:
5.2.1 Using fire-resistant lines, fittings, and other compo-
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This practice is under the jurisdiction of ASTM Committee F38 on Unmanned nents that contain a flammable liquid when supplied with the
Aircraft Systems and is the direct responsibility of Subcommittee F38.01 on
engine; and
Airworthiness.
5.2.2 Shielding or locating components to safeguard against
Current edition approved April 1, 2007. Published April 2007. DOI: 10.1520/
F2612-07. the ignition of leaking flammable fluid.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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F2612 − 07
5.3 Engine Cooling—The engine design must include pro- 5.9 Vibration General—The turbine engine must be de-
visionsforcooling;theinstallationmanualmustspecifyengine signed and constructed to function throughout its normal
and component temperature limitations. operatingrangeofrotationalspeedsandenginepowerswithout
inducing excessive stress in any of the engine parts.
5.4 Engine Mounting—Attach points on the engine must
5.9.1 The engine must have a rotational vibration survey to
have data for the correct design of mounting structures to the
determinetorsionalandbendingcharacteristicsfromidlespeed
airfram
...