| Dokumendiregister | Transpordiamet |
| Viit | 13.11-4/26/6932-3 |
| Registreeritud | 20.01.2026 |
| Sünkroonitud | 21.01.2026 |
| Liik | Kooskõlastus / kinnitus / heakskiitmine |
| Funktsioon | 13.11 Mehitamata õhusõidukite lennutamise korraldamine |
| Sari | 13.11-4 Erikategooria omistamise dokumendid |
| Toimik | 13.11-4/25-042 |
| Juurdepääsupiirang | Avalik |
| Juurdepääsupiirang | |
| Adressaat | |
| Saabumis/saatmisviis | |
| Vastutaja | Mait Rõõmus (Users, Lennundusteenistus, Mehitamata lennunduse osakond) |
| Originaal | Ava uues aknas |
TRANSPORDIAMETI JUHTIMISSÜSTEEM OT_264_K1_V3_r1
OPERATIONAL AUTHORISATION FOR THE `SPECIFIC`CATEGORY
Kinnitamine: 20.01.2026 nr 13.11-4/26/6932-3 1/3
Data protection: the competent authority processes the personal data submitted in the application in accordance
with Regulation (EU) 2016/679 of the European Parliament and of the Council of 27 April 2016 on the protection of natural persons in the processing of personal data and on the free movement of such data and on the repeal of
Directive 95/46/EC (protection of personal data general regulation). The competent authority processes personal
data for the purposes of filling out the request, managing it and taking follow-up measures in accordance with Article 12 of Regulation (EU) 2019/947 of 24 May 2019 on the rules and procedures for the operation of
unmanned aircraft.
If the applicant needs additional information about the processing of their personal data or the exercise of their rights (for example, to access or correct inaccurate or incomplete data), they must contact the contact point of
their competent authority.
The applicant has the right to file a complaint with the national data protection authority regarding the processing of his personal data at any time.
1. Authority that issues the authorisation
1.1 Issuing authority Estonian Transport Administration
1.2 Point of contact
Name
Telephone
Mait Rõõmus
Senior Inspector of Unmanned Aviation Department
+372 5813 5909
2. UAS operator data
2.1 UAS operator registration number EST2f5n7feldlw1
2.2 UAS operator name Threod Systems AS
2.3 Operational point of contact
Name
Telephone
Aimar Aviste
Chief Test Engineer
+372 56916353
3. Authorised operation
3.1 Authorised location(s) Generic authorisation
Segregated airspace over sparsely populated area
3.2 Extent of the adjacent area 5 km
3.3 Risk assessment reference and revision SORA version __ PDRA #G02-1.2 other _______
3.4 Level of assurance and integrity SAIL II
3.5 Type of operation VLOS BVLOS
3.6 Transport of dangerous goods Yes No
3.7 Ground risk
characterisation
3.7.1 Operational area Sparsely populated area
3.7.2 Adjacent area Sparsely populated area
3.8 Ground risk
mitigations
3.8.1 Strategic mitigations No Yes, low Yes, medium Yes, high
3.8.2 ERP No Yes, low Yes, medium Yes, high
3.9 Height limit of the operational volume 4500m AMSL
3.10 Residual air risk
level
3.10.1 Operational volume ARC-a ARC-b ARC-c ARC-d
3.10.2. Adjacent volume ARC-a ARC-b ARC-c ARC-d
3.11 Air risk
mitigations
3.11.1 Strategic mitigations No Yes
3.11.2 Tactical mitigation
methods N/A
TRANSPORDIAMETI JUHTIMISSÜSTEEM OT_264_K1_V3_r1
OPERATIONAL AUTHORISATION FOR THE `SPECIFIC`CATEGORY
Kinnitamine: 20.01.2026 nr 13.11-4/26/6932-3 2/3
3.12 Achieved level of containment Basic Enhanced
3.13 Remote pilot competency OM 3.4
3.14 Competency of staff, other than the remote pilot,
essential for the safety of the operation OM 3.4
3.15 Type of events to be reported to the competent
authority (in addition to those required by
Regulation (EU) No 376/2014)
OM 10
3.16 Insurance No Yes
3.17 Operations manual reference Threod Systems AS Operational Manual v1.1
3.18 Compliance evidence file reference PDRA characteristics and conditions G02 v1.1
3.19 Remarks / additional limitations N/A
4. Data of authorised UAS
4.1 Manufacturer Threod Systems AS 4.2 Model EOS C VTOL
4.3 Type of UAS
Aeroplane Helicopter
Multirotor
Hybrid/VTOL
Lighter than air / other
4.4 Maximum
characteristic
dimensions
4.965 m
4.5 Take-off mass 14.5 kg 4.6 Maximum speed 25 m/s (48.6 kt)
4.7 Additional technical requirements N/A
4.8 Serial number or, if applicable, UA registration
mark
s/n 216271006012, 216271006903, 216271018041,
216271017396, 216271017401
4.9 Number of type certificate (TC) or design
verification report, if required N/A
4.10 Number of the certificate of airworthiness
(CofA), if required N/A
4.11 Number of the noise certificate, if required N/A
4.12 Mitigation to reduce effect of ground impact No Yes, low Yes, medium Yes, high
Required to reduce the ground risk Yes No
4.13 Technical requirements for containment Basic Enhanced
5. Remarks
None
6. Operational authorisation
Threod System AS is authorised to conduct UAS operations with the UAS(s) defined in Section 4 and according to the
conditions and limitations defined in Section 3, for as long as it complies with this operational authorisation, with
Regulation (EU) 2019/947, and with any applicable Union and national regulations related to privacy, data protection,
liability, insurance, security, and environmental protection.
TRANSPORDIAMETI JUHTIMISSÜSTEEM OT_264_K1_V3_r1
OPERATIONAL AUTHORISATION FOR THE `SPECIFIC`CATEGORY
Kinnitamine: 20.01.2026 nr 13.11-4/26/6932-3 3/3
6.1 Operational authorisation number EST-OAT-0020/001
6.2 Expiry date 01.01.2030
Date
15/01/2026
Signed digitally
Priit Rifk
TRANSPORDIAMETI JUHTIMISSÜSTEEM OT_264_K1_V3_r1
OPERATIONAL AUTHORISATION FOR THE `SPECIFIC`CATEGORY
Kinnitamine: 20.01.2026 nr 13.11-4/26/6932-3 1/3
Data protection: the competent authority processes the personal data submitted in the application in accordance
with Regulation (EU) 2016/679 of the European Parliament and of the Council of 27 April 2016 on the protection of natural persons in the processing of personal data and on the free movement of such data and on the repeal of
Directive 95/46/EC (protection of personal data general regulation). The competent authority processes personal
data for the purposes of filling out the request, managing it and taking follow-up measures in accordance with Article 12 of Regulation (EU) 2019/947 of 24 May 2019 on the rules and procedures for the operation of
unmanned aircraft.
If the applicant needs additional information about the processing of their personal data or the exercise of their rights (for example, to access or correct inaccurate or incomplete data), they must contact the contact point of
their competent authority.
The applicant has the right to file a complaint with the national data protection authority regarding the processing of his personal data at any time.
1. Authority that issues the authorisation
1.1 Issuing authority Estonian Transport Administration
1.2 Point of contact
Name
Telephone
Mait Rõõmus
Senior Inspector of Unmanned Aviation Department
+372 5813 5909
2. UAS operator data
2.1 UAS operator registration number EST2f5n7feldlw1
2.2 UAS operator name Threod Systems AS
2.3 Operational point of contact
Name
Telephone
Aimar Aviste
Chief Test Engineer
+372 56916353
3. Authorised operation
3.1 Authorised location(s) Generic authorisation
Segregated airspace over sparsely populated area
3.2 Extent of the adjacent area 5 km
3.3 Risk assessment reference and revision SORA version __ PDRA #G02-1.2 other _______
3.4 Level of assurance and integrity SAIL II
3.5 Type of operation VLOS BVLOS
3.6 Transport of dangerous goods Yes No
3.7 Ground risk
characterisation
3.7.1 Operational area Sparsely populated area
3.7.2 Adjacent area Sparsely populated area
3.8 Ground risk
mitigations
3.8.1 Strategic mitigations No Yes, low Yes, medium Yes, high
3.8.2 ERP No Yes, low Yes, medium Yes, high
3.9 Height limit of the operational volume 4000m AMSL
3.10 Residual air risk
level
3.10.1 Operational volume ARC-a ARC-b ARC-c ARC-d
3.10.2. Adjacent volume ARC-a ARC-b ARC-c ARC-d
3.11 Air risk
mitigations
3.11.1 Strategic mitigations No Yes
3.11.2 Tactical mitigation
methods N/A
TRANSPORDIAMETI JUHTIMISSÜSTEEM OT_264_K1_V3_r1
OPERATIONAL AUTHORISATION FOR THE `SPECIFIC`CATEGORY
Kinnitamine: 20.01.2026 nr 13.11-4/26/6932-3 2/3
3.12 Achieved level of containment Basic Enhanced
3.13 Remote pilot competency OM 3.4
3.14 Competency of staff, other than the remote pilot,
essential for the safety of the operation OM 3.4
3.15 Type of events to be reported to the competent
authority (in addition to those required by
Regulation (EU) No 376/2014)
OM 10
3.16 Insurance No Yes
3.17 Operations manual reference Threod Systems AS Operational Manual v1.1
3.18 Compliance evidence file reference PDRA characteristics and condition G02 v1.1
3.19 Remarks / additional limitations N/A
4. Data of authorised UAS
4.1 Manufacturer Threod Systems AS 4.2 Model Stream C
4.3 Type of UAS
Aeroplane Helicopter
Multirotor
Hybrid/VTOL
Lighter than air / other
4.4 Maximum
characteristic
dimensions
3.9 m
4.5 Take-off mass 38 kg 4.6 Maximum speed 39 m/s (75.6 kt)
4.7 Additional technical requirements N/A
4.8 Serial number or, if applicable, UA registration
mark s/n 2162ASTREAMC002
4.9 Number of type certificate (TC) or design
verification report, if required N/A
4.10 Number of the certificate of airworthiness
(CofA), if required N/A
4.11 Number of the noise certificate, if required N/A
4.12 Mitigation to reduce effect of ground impact No Yes, low Yes, medium Yes, high
Required to reduce the ground risk Yes No
4.13 Technical requirements for containment Basic Enhanced
5. Remarks
None
6. Operational authorisation
Threod Systems AS is authorised to conduct UAS operations with the UAS(s) defined in Section 4 and according to the
conditions and limitations defined in Section 3, for as long as it complies with this operational authorisation, with
Regulation (EU) 2019/947, and with any applicable Union and national regulations related to privacy, data protection,
liability, insurance, security, and environmental protection.
TRANSPORDIAMETI JUHTIMISSÜSTEEM OT_264_K1_V3_r1
OPERATIONAL AUTHORISATION FOR THE `SPECIFIC`CATEGORY
Kinnitamine: 20.01.2026 nr 13.11-4/26/6932-3 3/3
6.1 Operational authorisation number EST-OAT-0021/001
6.2 Expiry date 01.01.2030
Date
15.01.2026
Signed digitally
Priit Rifk
| Nimi | K.p. | Δ | Viit | Tüüp | Org | Osapooled |
|---|