FAA – Coverage assertion for reporting geometric altitude of GCS for RID – sUAS Information

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AGENCY: Federal Aviation Administration (FAA), U.S. Division of 
 Transportation (DOT).

ACTION: Assertion of coverage.

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SUMMARY: This motion clarifies FAA coverage concerning the present 
 accuracy necessities for the reported geometric altitude of the 
 management station of a typical distant identification unmanned plane. 

The FAA describes one acceptable method producers of unmanned plane can 
 meet the minimal efficiency requirement for the accuracy of the 
 management station's reported geometric altitude. The FAA decided that 
 this motion is critical to tell builders of technique of compliance of 
 one potential pathway to satisfy the efficiency requirement for the 
management station's reported geometric altitude.

DATES: The efficient date of this coverage is November 22, 2021.

ADDRESSES: For data on the place to acquire copies of this assertion 
 of coverage and different data associated to this assertion, see 
``Extra Data'' within the SUPPLEMENTARY INFORMATION part of 
 this doc.

FOR FURTHER INFORMATION CONTACT: Paul Siegmund, Coverage and Innovation 
 Division, Federal Aviation Administration, 800 Independence Ave. SW, 
Washington, DC 20591; phone 1-844-FLY-MY-UA (1-844-359-6981); 
e-mail: [email protected]

SUPPLEMENTARY INFORMATION:

I. Overview

A. Background

    On January 15, 2021, the FAA revealed a last rule titled ``Distant 
Identification of Unmanned Plane'' (Distant ID last rule) with an 
 authentic efficient date of March 16, 2021.1 2 The Distant ID last 
rule requires the distant identification of unmanned plane within the 
 airspace of the US. Distant identification is the potential 
of an unmanned plane, in flight, to supply sure identification, 
location, and efficiency data that individuals on the bottom and 
 different airspace customers can obtain.
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    1 Distant Identification of Unmanned Plane last rule, 86 FR 
4390 (Jan. 15, 2021).
    2 On March 10, 2021, the FAA revealed a correction to the 
Distant ID last rule in accordance with the memorandum titled 
Regulatory Freeze Pending Evaluation (86 FR 7424, Jan 28, 2021), 
 delaying the ultimate rule's efficient date to April 21, 2021 (86 FR 
13629).
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Along with the working necessities, the Distant ID last rule 
 gives the design and manufacturing necessities for the manufacturing of 
 distant identification unmanned plane or broadcast modules. These 
 necessities describe the efficiency requirements for distant 
 identification with out establishing a selected means or course of for 
 regulated entities to comply with.3 An individual designing or producing a 
normal distant identification unmanned plane or distant 
 identification broadcast module should present that the unmanned plane or 
broadcast module meets the efficiency necessities of the rule by 
following an FAA-accepted technique of compliance. A method of compliance 
submitted to the FAA for acceptance
 should present that an unmanned plane or broadcast module produced utilizing 
it could meet the efficiency necessities of title 14 of the Code of 
 Federal Rules half 89 (14 CFR half 89). This coverage assertion 
 solely addresses the efficiency necessities and compliance path for the 
 normal distant identification unmanned plane.
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3 A typical distant identification unmanned plane 
 broadcasts identification, location, and efficiency data of 
 the unmanned plane and management station. This unmanned plane 
 broadcasts the distant identification message components straight from 
theunmanned plane from takeoff to shutdown. A distant 
identification broadcast module broadcasts identification, location, 
and take-off data; the published module could also be a separate 
gadget that's connected to an unmanned plane, or a function constructed 
into the plane. 86 FR 4391 (Jan. 15, 2021).
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Half 89 requires the next 8 message components to be broadcast 
 from a typical distant identification unmanned plane: 
(1) Unmanned 
plane distinctive identifier; 
(2) a sign of the management station's 
latitude and longitude; 
(3) a sign of the management station's 
altitude; 
(4) a sign of the unmanned plane's latitude and 
 longitude; 
(5) a sign of the unmanned plane's altitude; 
(6) a 
time mark; 
(7) a sign of the emergency standing of the unmanned 
plane system; and 
(8) velocity. 
Moreover, all normal distant 
identification unmanned plane should meet sure minimal necessities 
concerning the transmission of the message components together with the 
minimal efficiency necessities associated to positional accuracy, 
geometric altitude accuracy, message latency, and message transmission 
price. These minimal efficiency necessities for the message components 
are design necessities; any particular take a look at methodology for guaranteeing that the 
unmanned plane design meets this accuracy requirement can be 
reviewed and evaluated by the FAA as part of the technique of compliance 
 acceptance course of.

Half 89 establishes the accuracy requirement for the reported 
 geometric altitude for the management station of a typical distant 
 identification unmanned plane. Particularly, Sec.  89.310(h)(2) 
 requires that the reported geometric altitude of the management station 
should be correct to inside 15 toes of the true geometric altitude, with 
95 % chance. 

The Distant ID last rule didn't specify how a 
 technique of compliance ought to deal with this requirement. With a purpose to information 
producers to develop normal distant identification unmanned plane 
that meet the FAA's requirements, this coverage assertion informs builders 
of 1 potential technique of compliance that will be acceptable to the 
FAA to display compliance with assembly the geometric altitude 
requirement. Individuals growing a method of compliance for the standard 
distant identification unmanned plane in accordance with 14 CFR half 
89, subpart E, might incorporate the strategy described on this coverage 
assertion as a part of their technique of compliance. The FAA emphasizes, 
nonetheless, that different methods of demonstrating compliance with Sec.  
89.310(h)(2) could also be acceptable.

B. Assertion of Coverage: Acceptable Technique

This assertion of coverage describes one acceptable method, however not the 
 solely method, that the accuracy necessities for the reported geometric 
altitude of the management station of a typical distant identification 
unmanned plane can meet the minimal efficiency requirement in Sec.  
89.310(h)(2). The FAA is just not requiring builders of technique of 
compliance to incorporate the precise methodology offered on this assertion of 
coverage.

A method of compliance that requires the unmanned plane system 
 (UAS) management station place supply to be a worldwide navigation 
satellite tv for pc system (GNSS) receiver using International Positioning System 
(GPS) and Huge Space Augmentation System (WAAS) satellite tv for pc indicators to 
decide the geometric altitude of the management station could be an 
acceptable methodology for a method of compliance to display that the 
unmanned plane constructed in line with its specs would meet the 
accuracy requirement in Sec.  89.310(h)(2). The WAAS Efficiency 
Evaluation report from the second quarter of 2021 exhibits that GNSS 
receivers using GPS with a satellite-based augmentation system 
signifies a worst-site 95% vertical accuracy of 5 toes for the 
continental United States.4 This report demonstrates that GNSS 
receivers using GPS/WAAS can obtain the mandatory vertical 
place accuracy throughout the Nationwide Airspace System to satisfy the 
reported geometric altitude requirement of Sec.  89.310(h)(2).
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    4 https://www.nstb.tc.faa.gov/DisplayArchive.htm.
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The FAA acknowledges that UAS expertise, which incorporates distant identification expertise, is regularly evolving and bettering. 
Accordingly, the FAA expects that different strategies could also be obtainable to 
 meet this requirement aside from the one talked about on this coverage 
assertion, and nothing about this assertion ought to preclude builders 
of technique of compliance from together with different technological strategies of 
assembly the vertical accuracy necessities for the reported geometric 
 altitude of the management station. This assertion of coverage solely 
addresses one methodology of demonstrating compliance with Sec.  
89.310(h)(2); observe that any technique of compliance submitted to the FAA 
should additionally adequately deal with the opposite necessities partly 89, 
subparts D and E, with the intention to be accepted by the FAA.

II. Extra Data

A. Digital Entry and Submitting

A duplicate of the Distant ID last rule in addition to all background 
 supplies could also be considered on-line at https://www.laws.gov utilizing the 
docket quantity listed above. A duplicate of this assertion of coverage will 
even be positioned within the docket for that rule. Digital retrieval assist  and tips can be found on the web site. It's obtainable 24 hours 
every day, twelve months annually. 

An digital copy of this doc might 
even be downloaded from the Workplace of the Federal Register's web site at 
 https://www.FederalRegister.gov and the Authorities Publishing Workplace's 
 web site at https://www.GovInfo.gov.

Copies can also be obtained by sending a request to the Federal 
 Aviation Administration, Workplace of Rulemaking, ARM-1, 800 Independence 
Avenue SW, Washington, DC 20591, or by calling (202) 267-9677. 

Requestors should establish the docket or modification variety of this 
 rulemaking.

B. Integration of This Coverage Into FAA Orders and Publications

As acceptable, the FAA will incorporate this coverage into 
 relevant FAA Orders and publications, equivalent to Advisory Circulars, as 
 they're up to date. The company can even regularly evaluation this coverage 
within the curiosity of aviation security. The FAA reserves the precise to 
replace this coverage if the company collects or receives further 
 data.

This coverage doesn't have the pressure and impact of legislation and isn't 
 meant to bind the general public in any method, it's supposed solely to supply 
 readability to the general public concerning present necessities beneath the legislation or 
 company insurance policies.

Issued in Washington, DC, on or about November 16, 2021.
 
Michael C. Romanowski,
Aviation Security Director, Coverage and Innovation, Plane Certification 
Service.

[FR Doc. 2021-25366 Filed 11-19-21; 8:45 am]
BILLING CODE 4910-13-P


https://www.govinfo.gov/content material/pkg/FR-2021-11-22/html/2021-25366.htm

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