ASTM F3011-13
(Specification)Standard Specification for Performance of Angle of Attack System
Standard Specification for Performance of Angle of Attack System
ABSTRACT
This specification establishes functional operation and minimum performance requirements for simple systems that provide angle-of-attack information to a pilot, aircraft, or other systems. Functional requirements cover basic operation, stall indication, startup of electronically driven systems, accessibility of controls, and software while environmental requirements include icing, deicing fluids, emissions of RF energy, electrical power input, and power input abnormal surge voltage.
SCOPE
1.1 This performance specification covers simple systems that provide angle-of-attack information to a pilot, aircraft, or other systems.Note 1—More complex AoA systems can be addressed in annexes in the future.
1.2 In this performance specification, functional operation and minimum performance requirements for an angle-of-attack system are established.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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 and health practices and determine the applicability of regulatory limitations prior to use.
General Information
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:F3011 −13
Standard Specification for
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Performance of Angle of Attack System
This standard is issued under the fixed designation F3011; 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. General Requirements
1.1 This performance specification covers simple systems
4.1 Product Identification—Oneofthemajorcomponentsof
that provide angle-of-attack information to a pilot, aircraft, or
an AoA system, shall be labeled with the following informa-
other systems.
tion:
4.1.1 Part Number,
NOTE 1—More complex AoA systems can be addressed in annexes in
the future.
4.1.2 Serial Number, and
4.1.3 Manufacturer’s Name.
1.2 In this performance specification, functional operation
and minimum performance requirements for an angle-of-attack
4.2 Operating Conditions—The system manufacturer shall
system are established.
specify the following limitations for proper function:
1.3 The values stated in SI units are to be regarded as
4.2.1 The angular operational range of the system,
standard. No other units of measurement are included in this
4.2.2 Voltage operating range (min/max), if applicable,
standard.
4.2.3 Electrical load specifications, if applicable, and
1.4 This standard does not purport to address all of the
4.2.4 Restrictions regarding the use and application of
safety concerns, if any, associated with its use. It is the
deicing fluids with the system, if applicable.
responsibility of the user of this standard to establish appro-
4.3 Installation Manual—The manufacturer of the AoA
priate safety and health practices and determine the applica-
system shall provide an installation manual that specifies the
bility of regulatory limitations prior to use.
following information so that an installer can determine
appropriate use for an aircraft installation:
2. Referenced Documents
4.3.1 A full description of the intended function of the
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2.1 RTCA Standard:
system,
DO-160E Environmental Conditions and Test Procedures
4.3.2 An explicit compliance statement to this standard,
for Airborne Equipment
Specification F3011,
4.3.3 The operation limitations (including the items in 4.2,
3. Terminology
Operating Conditions),
3.1 Definitions:
4.3.4 The environmental conditions (including items in
3.1.1 angle of attack, AoA, n—acute angle between an
Section 6, Environmental Requirements),
aircraft’s wing chord, wing mean chord, or other defined
4.3.5 Installation and calibration instructions required for
aircraft longitudinal axis, and the direction of the relative free
safe, accurate, and proper operation of all intended functions of
stream wind.
the system, and
3.1.2 AoA system, n—collection of components used to
4.3.6 Instructions for Continued Airworthiness—The manu-
provideAoAinformationtothepilot,aircraft,orothersystems. facturer of the AoA system shall provide continued airworthi-
3.1.2.1 Discussion—This may include simple or complex ness procedures necessary to ensure safe and accurate opera-
systems, depending on the intended use. tion (calibration, alignment to aircraft, maintenance, etc.).
4.4 User’s Manual—The manufacturer of the AoA system
shall provide a user’s manual that specifies:
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This test method is under the jurisdiction ofASTM Committee F39 on Aircraft
4.4.1 The functional operation of the system (including
Systems and is the direct responsibility of Subcommittee F39.03 on Design of
items in Section 5, Functional Requirements).
Avionics Systems.
Current edition approved July 1, 2013. Published July 2013. DOI: 10.1520/
4.5 ItispermissiblethattheInstallationandUserManualbe
F3011-13.
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one physical document so long as it clearly delineates the two
Available from RTCA, Inc., 1150 18th St., NW, Suite 910, Washington, DC
20036. sections.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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F3011−13
5. Functional Requirements 6.1.2 Storage/Survival Temperature Range—The tempera-
ture range across which the system is exposed and not
5.1 Basic Operation—The manufacturer shall clearly
permanently damaged.
specify the functional characteristics of the system including:
6.1.3 Operating Humidity Range—The non-condensing hu-
5.1.1 The resolution of the AOA indication over the speci-
midity range at standard temperature and pressure that the
fied range. The resolution may vary over the range. The stated
system correctly functions, and is not adversely affected.
resolution need not be in degrees but may be in units consistent
6.1.4 Operating Altitude Range—The altitude range that the
with the indi
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