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ASTM F2505-07

(Practice)

Standard Practice for Application of Federal Aviation Administration (FAA) Federal Aviation Regulations Part 21 Requirements to Unmanned Aircraft Systems (UAS) (Withdrawn 2014)

Standard Practice for Application of Federal Aviation Administration (FAA) Federal Aviation Regulations Part 21 Requirements to Unmanned Aircraft Systems (UAS) (Withdrawn 2014)

SIGNIFICANCE AND USE
This practice is intended for guidance and instruction of the aircraft and unmanned aircraft systems industries when addressing the requirements of Part 21.
SCOPE
1.1 In this practice, certification procedures are provided for Unmanned Aircraft Systems (UAS) in the Light UAS Class and in the Remotely Operated Aircraft (ROA) UAS Classes. Unmanned Aircraft Systems in the Mini UAS and Micro UAS Classes are not considered in this practice, since they do not undergo airworthiness certification.
1.2 Citations of Federal Aviation RegulationsWhen citing U.S. Federal Aviation Regulations in this practice, the citation references are based on the following Federal Aviation Regulation structure:
1.2.1 The Code of Federal Regulations, Title 14 (14 CFR) comprises Aeronautics and Space Regulations. Chapter 1 of 14 CFR contains the regulations of the Federal Aviation Administration and is subdivided into subchapters and parts:
The Parts are further subdivided into Subparts and sections.
1.2.2 This practice uses Part 21 as a template. Within the text of the practice:
14 CFR Chapter 1 means the whole of Chapter 1 of 14 CFR; and
Subchapter C means all of the Parts of Subchapter C of 14 CFR.
1.2.3 In compact notation, citation of section 1309 of Part 23, for example, may be designated as "section 23.1309."
1.3 Unmanned Aircraft SystemsAn Unmanned Aircraft System (UAS) comprises an unmanned air vehicle, the remote control ground station that provides for the mission management and piloting of the air vehicle, data-links for the exchange of control and sensor payload data and all related interfaces. Any part of the overall system that could affect the airworthiness and safety of the aircraft is subject to the requirements of Part 21.
1.4 &inch-pound-units;
1.5 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.
WITHDRAWN RATIONALE
In this practice, certification procedures are provided for Unmanned Aircraft Systems (UAS) in the Light UAS Class and in the Remotely Operated Aircraft (ROA) UAS Classes. Unmanned Aircraft Systems in the Mini UAS and Micro UAS Classes are not considered in this practice, since they do not undergo airworthiness certification.
Formerly under the jurisdiction of Committee F38 on Unmanned Aircraft Systems, this practice was withdrawn without replacement in May 2014 because the information contained in the standard is available in industry regulations.

General Information

Status
Withdrawn
Publication Date
30-Jun-2007
Withdrawal Date
15-May-2014
ICS
49.020 - Aircraft and space vehicles in general
Technical Committee
F38 - Unmanned Aircraft Systems
Drafting Committee
F38.01 - Airworthiness
Current Stage
Ref Project

Relations

Replaces
ASTM F2505-06 - Standard Practice for Application of Federal Aviation Administration (FAA) Federal Aviation Regulations Part 21 Requirements to Unmanned Aircraft Systems (UAS)
Effective Date
01-Jul-2007

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ASTM F2505-07 - Standard Practice for Application of Federal Aviation Administration (FAA) Federal Aviation Regulations Part 21 Requirements to Unmanned Aircraft Systems (UAS) (Withdrawn 2014)ASTM F2505-07 - Standard Practice for Application of Federal Aviation Administration (FAA) Federal Aviation Regulations Part 21 Requirements to Unmanned Aircraft Systems (UAS) (Withdrawn 2014)
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ASTM F2505-07 - Standard Practice for Application of Federal Aviation Administration (FAA) Federal Aviation Regulations Part 21 Requirements to Unmanned Aircraft Systems (UAS) (Withdrawn 2014)
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: F2505 − 07
StandardPractice for
Application of Federal Aviation Administration (FAA) Federal
Aviation Regulations Part 21 Requirements to Unmanned
1
Aircraft Systems (UAS)
This standard is issued under the fixed designation F2505; 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.
INTRODUCTION
STRUCTURE AND ASSUMPTIONS
Introduction—This standard practice (SP) document uses 14 CFR Part 21 as a template, retaining
all sections of Part 21, many of which will not be altered by the incorporation of certification
procedures for Unmanned Aircraft Systems (UAS). The UAS certification procedures that have been
inserted into the Part 21 template may, therefore, be seen in the context of procedures prescribed for
other civil air vehicles that undergo airworthiness certification. The resulting document is perhaps
misnamed as a “standard practice” since it is, in fact, a prototype for a future version of Part 21 that
will accommodate UAS airworthiness certification.Anticipating this future version of Part 21, the SP
provides a framework for otherASTM standards development and standard-practice initiatives related
to UAS certification.
Scope of Changes to Part 21 Text—This version of the SP provides certification procedures for
unmanned aircraft systems in the light UAS class and in the Remotely OperatedAircraft (ROA/UAS)
Class. Unmanned aircraft systems in the mini UAS and micro UAS Classes are not considered in this
SP.
Certification Pathways—The SP anticipates that light UAS and the larger ROA/UAS will follow
distinctly different certification procedural pathways:
•LightUASwillbecertifiedtoconsensusstandards,inaprocesssimilartothatestablishedforlight
sport aircraft in the current Part 21 (section 21.190). This process will lead to issue of a special
certificate of airworthiness for the light UAS; and
• ROA/UAS will follow a conventional certification pathway described in Part 21, section 21.17(a),
leading to issue of a type certificate as described in Part 21, section 21.21, and issue of a standard
certificate of airworthiness under Part 21, section 21.183.
Applicable Requirements—The SP anticipates that the core requirements for the basis of
certification for the light UAS and ROA/UAS classes will be based on published design/airworthiness
standards that do not yet exist, specifically:
• Industry consensus standards for light UAS, prescribing airworthiness requirements for the issue
of a Special Certificate of Airworthiness for the smaller UAS; and
• Regulator-approvedAirworthiness Standards prescribing airworthiness requirements for the issue
of type certificates and changes to type certificates for ROA/UAS UAS.
Special-Classes Certification Pathway—The SP retains the Part 21 concept of special classes
aircraft, that is, “non-conventional aircraft for which airworthiness standards have not been issued
under this Subchapter (14 CFR Subchapter C).” UAS fit well within this definition of the special
classes, quoted here from Part 21, section 21.17(b); furthermore, the means for defining the
“applicable requirements” for a UAS basis of certification are clearly stated in section 21.17(b). Use
of this pathway for the early UAS certification candidates should be considered.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F2505 − 07
1. Scope 2. Significance and Use
2.1 This practice is intended for guidance and instruction of
1.1 In this practice, certification procedures are provided for
the aircraft and unmanned aircraft systems industries when
Unmanned Aircraft Systems (UAS) in the Light UAS Class
addressing the requirements of Part 21.
and in the Remotely Operated Aircraft (ROA) UAS Classes.
UnmannedAircraft Systems in the Mini UAS and Micro UAS
3. Subpart A—General
Classes are not considered in this practice, since they do not
2
undergo airworthiness certification. 3.1 Scope—This practice prescribes (21.1(a)) :
3.1.1 Procedural requirements for the issue of type certifi-
1.2 Citations of Federal Aviation Regulations—When citing
cates and changes to those certificates, the issue of production
U.S. Federal Aviation Regulations in this practice, the citation
certificates, the issue of airworthiness certificates, and the issue
references are based on the following Federal Aviation Regu-
of export airworthiness approvals (21.1(a)(1));
lation structure:
3.1.2 Rules governing the holders of any certificate speci-
1.2.1 The Code of Federal Regulations, Title 14 (14 CFR)
fied in 3.1.1 (21.1(a)(2)); and
comprisesAer
...

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1.1 This specification provides the minimum requirements for an Unmanned Aircraft Flight Manual (UFM) for an unmanned aircraft system (UAS) designed, manufactured, and operated in the light UAS category as defined by a Civil Aviation Authority (CAA). Depending on the size and complexity of the UAS, an UFM may also contain the instruction for maintenance and continuing airworthiness for owner / operator authorized maintenance. This document has been purposefully designed within the broader context of the Committee F38 library. Although the original source materials for the content presented here were intended to function as standalone documents, the committee has consciously removed any redundant information in favor of adopting a referential "single-source-of-truth" approach. Consequently, when applying this standard, it is essential to consider and integrate all relevant Committee F38 standards to ensure its comprehensive and accurate implementation.  
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SIGNIFICANCE AND USE
4.1 The purpose of this standard practice is to provide the minimum requirements for the conduct of compliance audits.  
4.2 The intended use of this practice is to provide a basis for an internal or external entity to develop an audit program. An audit program defines specific requirements for the execution of audits for a particular objective. An example of an audit program would be an external (third party) audit of UAS manufacturer’s quality assurance system.  
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4.9 Level of Review is Variable—The audit scope may vary to meet different audit objectives. For example, the audit scope may include only selected audit criteria, selected period under review, or selected portions of a facility or organization.
SCOPE
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1.1 This specification defines the design, construction, and test requirements for a small unmanned aircraft system (sUAS).  
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This specification provides a consensus standard for an application to a nation's governing aviation authority (GAA) for a permit to operate a small unmanned aircraft system (sUAS) for commercial or public use purposes. It is intended for all sUAS that are allowed to operate over a defined area and in airspace authorized by a nation's GAA. Unless otherwise specified by a nation's GAA, this specification applies only to UA that have a maximum gross takeoff weight of 25 kg (55 lb) or less. This specification covers general command and control (C2) requirements, C2 system spectrum requirements, C2 link requirements, UA requirements, and fly-away functionality.
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1.1 This specification is provided as a consensus standard in support of an application to a nation’s governing aviation authority (GAA) for a permit to operate a small unmanned aircraft system (sUAS) for commercial or public use purposes.  
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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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1.1 This terminology standard covers definitions of terms and concepts related to unmanned aircraft systems (UAS). It is intended to encourage the consistent use of terminology throughout all ASTM unmanned aircraft system standards and is intended to complement F3060 Standard Terminology for Aircraft. Terms already included in Terminology F3060 are not duplicated here.  
1.2 A definition adapted from a particular standard within the ASTM F38 collection of standards is not limited to use within only those standards.  
1.3 Additional terms specific to a given standard may be defined solely within that standard and not included here.  
1.4 Units—The definitions of units will be as defined in NIST SP 330, and will not be duplicated in this document. NIST SP 330 is available on the internet.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
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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 determine the applicability of regulatory limitations prior to use.  
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