FprEN 4709-005

Aerospace series - Unmanned Aircraft Systems - Part 005: Verification method for the geocaging function

Luft- und Raumfahrt - Unbemannte Luftfahrzeugsysteme - Teil 005: Überprüfungsmethode für die Geocaging-Funktion

Série aérospatiale - Aéronefs télépilotés - Partie 005: Méthode de vérification de la fonction géeocaging

Le présent document fournit les exigences, méthodes d'essai et critères d'acceptation pour :
-   la fonction de géocaging mise en oeuvre utilisée pour empêcher l'UA d'enfreindre les limites horizontales et verticales du volume opérationnel prévu ;
-   les informations à fournir dans les instructions du fabricant décrivant cette fonction, ses limites et la taille requise du volume de contingence après prise en compte des erreurs, du temps de réaction et des corrections.

Aeronavtika - Letalski sistemi brez posadke - 005. del: Metoda preverjanja funkcije Geocaging

General Information

• Status: Not Published
• Publication Date: 12-May-2025
• ICS: 03.220.50 - Air transport
• ICS: 49.020 - Aircraft and space vehicles in general
• Technical Committee: CEN/TC 471 - Aviation and aeronautics
• Drafting Committee: CEN/TC 471/WG 1 - Unmanned Aircraft Systems
• Current Stage: 4599 - Dispatch of FV draft to CMC - Finalization for Vote
• Start Date: 09-Oct-2024
• Completion Date: 09-Oct-2024
• Directive: 2019/945 - Commission Delegated Regulation (EU) 2019/945 of 12 March 2019 on unmanned aircraft systems and on third-country operators of unmanned aircraft systems
• Mandate: M/567 - Standardisation Request to the European Committee for Standardisation as regards unmanned aircraft systems intended to be operated in the ‘open’ category of operations in support of Commission Delegated Regulation (EU) 2019/945
• Ref Project: oSIST prEN 4709-005:2023 - Aerospace series - Unmanned Aircraft Systems - Part 005: Verification method for the Geocaging function

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2023
Aeronavtika - Letalski sistemi brez posadke - 005. del: Metoda preverjanja funkcije
Geocaging
Aerospace series - Unmanned Aircraft Systems - Part 005: Verification method for the
Geocaging function
Luft- und Raumfahrt - Unbemannte Luftfahrzeugsysteme - Teil 005:
Überprüfungsmethode für die Geocaging-Funktion
Série aérospatiale - Aéronefs télépilotés - Partie 005: Méthode de vérification de la
fonction géeocaging
Ta slovenski standard je istoveten z: prEN 4709-005
ICS:
03.220.50 Zračni transport Air transport
49.020 Letala in vesoljska vozila na Aircraft and space vehicles in
splošno general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
prEN 4709-005
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2023
ICS
English Version
Aerospace series - Unmanned Aircraft Systems - Part 005:
Verification method for the Geocaging function
Série Aérospatiale - Aéronefs télépilotés - Partie 5: Luft- und Raumfahrt - Unbemannte
Méthodes de vérification de la fonction Geocaging Luftfahrzeugsysteme - Teil 005: Überprüfungsmethode
für die Geocaging-Funktion
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 471.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 4709-005:2023 E
worldwide for CEN national Members.

prEN 4709-005:2023 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 List of abbreviated terms . 8
5 Geocaging function requirements . 8
5.1 Detailed requirements . 8
5.2 Programming the flight geography and the operational volume . 10
5.2.1 Performance requirements . 10
5.2.2 Verification method . 11
5.2.3 Pass criteria . 11
5.2.4 Performance requirements . 11
5.2.5 Verification method . 12
5.2.6 Pass criteria . 12
5.3 Flight plan limitations . 12
5.3.1 Performance requirements . 12
5.3.2 Verification method . 13
5.3.3 Pass criteria . 14
5.4 Containment of the UA inside the FG . 14
5.4.1 Performance requirements . 14
5.4.2 Verification method . 14
5.4.3 Pass criteria . 19
5.5 Triggering of the flight termination function by geocage . 19

5.5.1 Performance requirements . 19
5.5.2 Verification method . 20
5.5.3 Pass criteria . 20
6 Geocaging information requirements . 20
6.1 General. 20
6.2 Performance requirements . 20
6.3 Pass criteria . 22
Annex ZA (informative) Relationship between this European Standard and the Regulation
(EU) 2019/945 of 12th March 2019 on unmanned aircraft systems and on third-
country operators of unmanned aircraft systems . 23
Bibliography . 24

prEN 4709-005:2023 (E)
European foreword
This document (prEN 4709-005:2023) has been prepared by Technical Committee CEN/TC 471
“Unmanned Aircraft Systems”, the secretariat of which is held by BNAE.
This document is currently submitted to the CEN Enquiry.
This document has been prepared under a Standardization Request given to CEN by the European
Commission and the European Free Trade Association and supports essential requirements of
EU Directive(s)/Regulation(s).
For relationship with EU Directive(s)/Regulation(s), see informative Annex ZA, which is an integral part
of this document.
prEN 4709-005:2023 (E)
Introduction
This document gives all economic operators (such as manufacturers, importers and distributors and
their trade associations as well as bodies involved in the conformity assessment procedures) a viable
way to prove compliance with the requirements linked to geocaging function and to find commonality
in compliance methods.
The end user of this document assumes all responsibility for the safe application of the test methods.
All relevant safety/quality procedures should be considered. Special consideration should be given to
the operation of the UAS for evaluations. All local, state, federal, and national laws should be considered
when operating any UAS.
Operational volume and contingency volume are defined in SORA semantic model. Figure 1 provides a
consistent use of the terms. Figure 2 provides a graphical representation of the model.

Figure 1 — SORA semantic model [Source: Easy Access Rules for Unmanned Aircraft Systems,
September 2022]
prEN 4709-005:2023 (E)
Figure 2 — Graphical representation of the SORA semantic model [Source: Easy Access Rules for
Unmanned Aircraft Systems, September 2022]
NOTE 1 SORA Step #9 – Adjacent area/airspace considerations and PDRA-G01, G02 and G03.
This document provides a contribution to SORA Step #9 compliance, requirement (b), also known as
Standard containment. Nonetheless, this document cannot be used as a complete means of compliance
to SORA Step #9, as it does not include design requirements.
NOTE 2 PDRA-G01, G02 and G03 also include this requirement in section technical provisions, Containment.
prEN 4709-005:2023 (E)
1 Scope
This document provides requirements, test methods and pass criteria for the:
— implemented geocage function used to prevent the UA from breaching the horizontal and vertical
limits of the planned operational volume;
— information to be provided in the manufacturer’s instructions describing this function, its limits
and the required size of the contingency volume after accounting the errors, reaction time and
corrections.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 4709-001:—, Aerospace series — Unmanned Aircraft Systems — Part 001: Product requirements and
verification
EN 4709-006:—, Aerospace series — Unmanned Aircraft Systems — Part 006: Means to terminate flight,
requirements, and verification
EN 4709-007:—, Aerospace series — Unmanned Aircraft Systems — Part 007: General product
requirements for UAS classes C5 and C6
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 4709-001 and the following
apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp/
— IEC Electropedia: available at https://www.electropedia.org/
3.1
caution alert
alert for conditions that require immediate awareness and subsequent response by the UAS remote
pilot
Note 1 to entry: in this document, the caution alert condition is related to the breach of the flight geography
volume.
Under preparation. Stage at the time of publication: prEN 4709-001:2021.
Under preparation. Stage at the time of publication: prEN 4709-006:2023.
Under development.
prEN 4709-005:2023 (E)
3.2
command unit
equipment or system of equipment to control unmanned aircraft remotely as defined in point 32 of
Article 3 of Regulation (EU) 2018/1139 which supports the control or the monitoring of the unmanned
aircraft during any phase of flight, with the exception of any infrastructure supporting the command
and control (C2) link service
[SOURCE: Easy Access Rules for Unmanned Aircraft Systems, September 2022]
3.3
contingency measures
preventive or corrective action to be taken in response to an event and a need to depart from the agreed
plan of action
3.4
contingency volume
volume of airspace outside the flight geography where contingency procedures are applied
[SOURCE: Easy Access Rules for Unmanned Aircraft Systems, September 2022]
3.5
flight geography
volume(s) of airspace defined spatially and temporally in which the UAS operator plans to conduct the
operation under normal procedures
[SOURCE: Easy Access Rules for Unmanned Aircraft Systems, September 2022]
3.6
global navigation satellite system
GNSS
positioning system based on one or several satellite constellations
3.7
haptic signal
any type of signal that is transferred to the hand of the user through the handheld controller in the form
of vibrations
3.8
operational volume
combination of the flight geography and the contingency volume
[SOURCE: Easy Access Rules for Unmanned Aircraft Systems, September 2022]
3.9
UAS geographical zone
UGZ
portion of airspace established by the competent
...