The Stages

SORA Process

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Operations Manual

Operational concept & geometry mapping.

Capture the proposed UAS operation in a structured format, including aircraft, mission profile, flight geography, airspace context, crew, procedures, and uploaded Operations Manual references. These inputs become the foundation for geometry, risk, evidence, and export workflows.

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GRC

Ground Risk Class & density modeling.

Review platform-derived intrinsic and final ground risk using UA characteristics, operational geometry, population-density reference data, and applicable ground risk mitigations. The result remains traceable as part of the structured SORA assessment.

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ARC & TMPR

Air Risk evaluation & tactical mitigations.

Review the airspace context, initial ARC, strategic mitigations, residual ARC, and any required TMPR assumptions. Where applicable, the workflow captures tactical mitigation evidence and review notes.

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SAIL / OSO

Integrity levels & safety objectives.

Determine the SAIL from final GRC and residual ARC, then identify the required safety objectives, robustness expectations, evidence links, reviewer notes, and containment-related requirements.

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CSP / Export

Compile formal safety portfolio document.

Assemble the supported SORA output documents and supporting evidence into a Comprehensive Safety Portfolio (CSP) export package for operator review before any external submission process.

Learn More About SORA Process→

FAQ

Questions

NAVORA helps operators build a SORA assessment from one project workspace. You can choose the SORA version, enter the operation details, draw or upload the flight geography, generate the operational volume, assess GRC and ARC, track OSO evidence, and prepare the supported export package for review.

It specifically supports automated operational volume generation from the flight geography, including contingency volume, ground risk buffer, operational volume, and adjacent area where supported.

Both SORA 2.0 and SORA 2.5 are supported paths in the tool. SORA 2.5 is the newer method and uses more quantitative inputs in areas such as population density, with updated handling for containment and OSOs. SORA 2.0 remains available for workflows that still require that version.

For SORA 2.0, the export scope generates a structured SORA assessment form. For SORA 2.5, it generates the assessment form and a compliance matrix document.

GRC (Ground Risk Class): Describes the hazard of a UA impacting people or property on the ground, determined by the drone's size, max speed, and operating area density, adjusted by strategic and tactical mitigations (like parachutes).

JARUS iGRC Determination Matrix (Table 2)

Max UA Dimension	1m	3m	8m	20m	40m
Max Speed	< 25 m/s	< 35 m/s	< 75 m/s	< 120 m/s	< 200 m/s
Controlled Ground Area	1	1	2	3	3
< 5 / km² (Remote)	2	3	4	5	6
< 50 / km² (Rural)	3	4	5	6	7
< 500 / km² (Sparsely Populated)	4	5	6	7	8
< 5,000 / km² (Suburban)	5	6	7	8	9
< 50,000 / km² (High Density)	6	7	8	9	10
> 50,000 / km² (Assemblies)	7	8	Outside standard SORA scope

ARC (Air Risk Class): Describes the collision probability with crewed aircraft in the operational volume, adjusted from initial to residual risk levels using spatial, temporal, or performance mitigations.

JARUS Air Risk Class (ARC) Process Flowchart

SAIL (Specific Assurance and Integrity Level): A numeric classification from I to VI determined by cross-referencing final GRC and residual ARC. Higher SAIL levels impose more stringent Operational Safety Objectives (OSOs).

JARUS SAIL Determination Matrix Table

Final GRC \ rARC	ARC-a	ARC-b	ARC-c	ARC-d
≤ 2	I	II	IV	VI
3	II	II	IV	VI
4	III	III	IV	VI
5	IV	IV	IV	VI
6	V	V	V	VI
7	VI	VI	VI	VI
8	VI	VI	VI	VI
> 8	Outside standard SORA scope

Population density data comes from the Global Human Settlement Layer (GHS-POP) produced by the European Commission's Joint Research Centre under the Copernicus programme, using the 2025 population grid projections. The tool uses this dataset to support ground-risk assessment and map overlays, and records the dataset source, version, and reference year for each project so operators can see exactly which population layer was used in their GRC calculation.

The first supported workflow is planned around Indonesia-oriented operations with SORA 2.0 and SORA 2.5 support. Support for other countries depends on available population data, airspace data, and authority-specific requirements.

The tool prepares a structured export package for operator review. It does not directly submit the assessment to the competent authority.

For SORA 2.0, the current scope generates the SORA assessment form. For SORA 2.5, it generates the SORA assessment form and a compliance matrix document. Operators can also include linked evidence, operational volume files, and manifest snapshots where available. The tool does not auto-generate Operations Manual documents; operators can upload and link those as supporting documents.

One Workspace for SORA Readiness

Plan operations, assess risk, organize evidence, and prepare SORA documentation in one workspace.

Start Assessment

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The Stages

SORA Process

description

Operations Manual

Operational concept & geometry mapping.

public

GRC

Ground Risk Class & density modeling.

track_changes

ARC & TMPR

Air Risk evaluation & tactical mitigations.

shield

SAIL / OSO

Integrity levels & safety objectives.

Determine the SAIL from final GRC and residual ARC, then identify the required safety objectives, robustness expectations, evidence links, reviewer notes, and containment-related requirements.

download

CSP / Export

Compile formal safety portfolio document.

Assemble the supported SORA output documents and supporting evidence into a Comprehensive Safety Portfolio (CSP) export package for operator review before any external submission process.

Learn More About SORA Process→

Spatial Intelligence

Operational Geometry, Clearly Mapped

Define or upload your flight geography to review Contingency Volume, Ground Risk Buffer, airspace context, and population-density overlays. Review derived 2D and 3D layers after the platform-side calculation is complete.

Interactive 2D Map Canvas
Automated Population Density Layers
Airspace context layers

Population data sourced from Copernicus GHS-POP (2025 Epoch, R2023A release)

Risk Review

Review Risk Results

SAIL Determination

Review a traceable SAIL result derived from the selected GRC and ARC inputs.

Illustrative SAIL: III

Robustness Review

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Workflow Checks

NAVORA checks declared project parameters against the selected SORA framework.

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Ground Risk Class

Quantitative mapping of kinetic energy to Annex F demographic layers.

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Air Risk Class

Tactical and strategic mitigation assessment across ARC levels a–d.

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Assessment Record

Versioned record of inputs, decisions, and supporting documents.

description

SORA Assessment Form

Review Package

Supporting Evidence Package

✓Operations Manual (Uploaded)
✓C2 Link Performance Parameter Test Procedure (Uploaded)
✓C3 Performance Demonstration Report (Uploaded)

Documentation

Comprehensive Safety Portfolio Export

NAVORA prepares a version-specific SORA review package: the assessment form for SORA 2.0, and the assessment form plus compliance matrix for SORA 2.5. Uploaded references can be included as supporting documents.

View Solutions Workflow

FAQ

Questions

It specifically supports automated operational volume generation from the flight geography, including contingency volume, ground risk buffer, operational volume, and adjacent area where supported.

For SORA 2.0, the export scope generates a structured SORA assessment form. For SORA 2.5, it generates the assessment form and a compliance matrix document.

JARUS iGRC Determination Matrix (Table 2)

Max UA Dimension	1m	3m	8m	20m	40m
Max Speed	< 25 m/s	< 35 m/s	< 75 m/s	< 120 m/s	< 200 m/s
Controlled Ground Area	1	1	2	3	3
< 5 / km² (Remote)	2	3	4	5	6
< 50 / km² (Rural)	3	4	5	6	7
< 500 / km² (Sparsely Populated)	4	5	6	7	8
< 5,000 / km² (Suburban)	5	6	7	8	9
< 50,000 / km² (High Density)	6	7	8	9	10
> 50,000 / km² (Assemblies)	7	8	Outside standard SORA scope

JARUS Air Risk Class (ARC) Process Flowchart

JARUS SAIL Determination Matrix Table

Final GRC \ rARC	ARC-a	ARC-b	ARC-c	ARC-d
≤ 2	I	II	IV	VI
3	II	II	IV	VI
4	III	III	IV	VI
5	IV	IV	IV	VI
6	V	V	V	VI
7	VI	VI	VI	VI
8	VI	VI	VI	VI
> 8	Outside standard SORA scope

The tool prepares a structured export package for operator review. It does not directly submit the assessment to the competent authority.

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