The engineering workspace for aerospace certification.
Velorum is where certification engineers and design organisations develop functions, FHA, and architecture in one connected environment. Deliverables — FHA reports, traceability tables, assumption registers — are generated from the work, not rebuilt after.
One model underneath every workbench.
Velorum unifies the ARP4754A and ARP4761 workflow in one environment. Functions, failure conditions, architecture, requirements and the documents that carry them share a single model — so the traceability you need on delivery is present from day one, not reconstructed at the end.
Model
Every part, port, interface and connection held as one governed model rather than scattered across diagrams. Ask what a change touches and get the answer in both directions — what depends on this, and what this depends on.
- —Decomposition from aircraft down to item
- —Impact analysis, upstream and downstream
- —Requirements bound to the parts that satisfy them
Programme
Your certification programme as a live structure instead of a plan someone maintains by hand. Objectives attach to real artefacts, so gate readiness is computed from the work rather than assembled the week before the review.
- —Configurable stages and gates per programme
- —Objectives evaluated against artefact state
- —Readiness roll-up, live, per gate
Codex
Document numbering, revisions, signature rounds and issuance in one register. A plan becomes effective when the last signature lands — not when someone remembers to rename the file.
- —Per-programme numbering and revision control
- —Prepared / Checked / Approved signature rounds
- —Issued revisions frozen with their attachments
Functions
The function hierarchy everything else hangs from — numbered, baselined and reviewable. It carries the same lifecycle as every other object in the platform, so nothing is reviewed by a different set of rules.
- —Multi-level hierarchy with automatic numbering
- —Draft through released lifecycle
- —Immutable baselines with a full audit trail
FHA
Aircraft and system-level hazard assessment run against the same functions you decomposed, not a re-typed copy of them. Failure conditions, severity classification, and the safety objectives they generate.
- —Aircraft and system-level assessment
- —Failure condition register with severity classification
- —Derived assumptions captured as you work
Requirements
Requirements written against the thing they actually constrain, linked to the functions they refine and the parts that satisfy them. Traceability becomes a property of the model rather than a report you rebuild each time.
- —Requirements bound to a subject
- —Satisfy, derive and refine relationships
- —Verification evidence tracked per requirement
Safety analysis — fault trees, FMEA, system safety assessment and common cause — is in development.
Built for certifying complex systems faster.
Velorum is the certification-native systems development suite for aerospace and defence teams. It connects requirements, functions, safety, architecture, and deliverables in one platform — cutting the time from concept to certification-ready output.
Certification engineer — independent
You run safety programmes across multiple clients or programmes simultaneously. Your process currently lives in a combination of Word, Excel, and shared drives. Each new project means rebuilding the same FHA template from scratch.
Velorum gives you a structured, repeatable process across projects — function tree, FHA, and derived requirements in one place, exportable in the format your client expects.
Small DOA — MALE / HALE UAV programme
You are a design organisation with a team of three to ten engineers certifying an unmanned aircraft under EASA regulations. You cannot justify the cost or complexity of enterprise safety tools built for large OEMs.
Velorum is built for complex systems around ARP4754A and ARP4761 workflows at the scale of a small programme. The process matches what the regulations require — not what a 500-person organisation would build around it.
Systems engineering consultancy
You provide systems and safety engineering services to aerospace clients. You need a tool you can demonstrate to a client, hand off a structured output from, and reference in a compliance argument.
Velorum produces structured, auditable outputs — Word documents, traceability tables, assumption registers — that map directly to DOA handbook and compliance deliverable requirements.
Built for regulated aerospace work.
Your engineering IP stays in the EU. Your project content never trains a model. Your deliverables remain yours. The full trust posture — infrastructure, jurisdiction, deployment options, compliance roadmap — is documented on the trust page.
Project data on AWS EU infrastructure via Supabase, with row-level tenant isolation and encryption at rest and in transit.
Your project content is never used to train any model. No third-party AI access to your data.
Netherlands-registered, EU GDPR compliant. Data Processing Agreement available on request.
ISO 27001 certification on the roadmap. SOC 2 follows. Deployment options on Enterprise tier.
Pilot access is open.
The platform is functional and in daily use. We are onboarding a small group of engineers and teams working on ARP4754A and ARP4761 programmes. Pricing is not published — it is agreed during a qualification conversation.
Configurable stages and gates, objectives evaluated against artefact state, readiness rolled up live per gate.
Architecture repository from aircraft to item, with impact analysis in both directions and requirements bound to the parts that satisfy them.
Controlled documents with per-programme numbering, revision control, signature rounds, and issuance frozen with its attachments.
Function decomposition, aircraft and system-level hazard assessment, and requirements traced to what they refine and satisfy.
Immutable snapshots with a full event log, and templated Word and PDF output configured per project.
Everything in the platform, including anything shipped during the pilot, for the duration.
We map your programme to the tool together, directly with the engineering team.
Direct line to the engineers building Velorum throughout the pilot.
Your feedback shapes what we build next and in what order.
Agreed during qualification — not published. No commitment before a fit conversation.
Tell us about your programme.
Send a short description of your programme and team size. We will confirm whether the platform is a fit and agree terms before any commitment.
Common questions.
Can't find what you're looking for? Ask us directly →
Programme gives you configurable stages and gates with objectives evaluated against the state of real artefacts, so gate readiness is computed rather than assembled by hand. Model is the architecture repository — decomposition from aircraft down to item, impact analysis in both directions, and requirements bound to the parts that satisfy them. Codex holds controlled documents with per-programme numbering, revision control, signature rounds and issuance. Alongside those sit function decomposition, aircraft and system-level hazard assessment, and requirements with satisfy, derive and refine relationships. They share one model rather than exchanging files, so a function you decompose is the same function the hazard assessment runs against and the same function a requirement refines.
Every failure condition in the FHA is linked to a specific function in the Function Tree. When you create an FHA entry, you select the function it belongs to — the FHA workspace then shows the function number, name, and level alongside the failure condition. The sidebar in the FHA workspace displays all functions with their worst severity and FC count, making it straightforward to navigate from a function to its associated failure conditions and back. This linkage is the foundation for traceability into future workspaces.
Pilot access includes full use of the platform, an onboarding call to map your programme to the tool, direct access to the engineering team throughout the pilot, and your feedback directly influencing what gets built next. Pilot terms — including duration and pricing — are agreed individually during a qualification conversation. We do not publish pricing.
VAESIR is built for aerospace safety engineers, certification engineers and small design organisations who run ARP4754A and ARP4761 processes regularly. This includes independent certification consultants managing multiple programmes, small UAV design organisations certifying under EASA regulations, and systems engineering consultancies that need structured, auditable outputs to hand to clients or submit to authorities. VAESIR is not a general requirements or project management tool — it is a focused environment for the specific workflows that precede and inform the safety case.
The Function Tree exports to a flat register (Word and CSV) and can be printed as a structured report. The FHA Workspace exports a templated Word (.docx) document including a cover page, Summary of Results table, Full FHA table, Functions × Severity table, and Derived Assumptions register. The export template is configurable per project — company name, document number, revision, author, and classification. HTML-to-PDF is also available via the browser print function.
Not yet. Velorum covers the development assurance workflow — programme structure and gates, function decomposition, functional hazard assessment, architecture, requirements and traceability, and the controlled documents that carry all of it. Formal safety analysis — fault trees, FMEA, system safety assessment and common cause — is in development. The intent is the full ARP4754A and ARP4761 workflow. What is usable today is a complete unit of value on its own, and we would rather show you against your own programme than describe it in the abstract.
Pilot programmes set the order. When something blocks a participant's certification work it moves up, and we would rather close a real blocker than ship the next item on an internal list. We walk through the current development plan during qualification, against your programme and your dates, rather than publishing a roadmap that ages badly and tells you nothing about whether the platform fits your work.
Project data is stored using Supabase, hosted on AWS infrastructure in the EU region. Row-level security means only you — and any team members you explicitly grant access to — can view your projects. All data is encrypted at rest and in transit. We do not use your project content for any purpose other than providing the VAESIR service.
Start a conversation.
Tell us about your programme — the airframe you're certifying, the team size, and what you need from a safety engineering platform. We'll confirm whether Velorum is a fit before discussing terms.