POSITION YOUR UAS AS A PRE-ASSESSED, REGULATOR-RECOGNISED PLATFORM.
Why SAIL Marking matters?
UK SORA defines a range of technical risk drivers that, if not properly mitigated, can compromise the safety of UAS operations. It also establishes robustness criteria (Low / Medium / High) to assess whether these risks are adequately mitigated —what we refer to as UK SORA requirements.
A significant subset of these requirements can only be satisfied at design level—through system architecture, safety functions, and manufacturing integrity.
The SAIL Mark Policy Concept (CAP722K) enables UAS and safety accessory designers to have these design-level mitigations independently assessed by a Recognised Assessment Entity (RAE-F) and subsequently validated by the UK Civil Aviation Authority, resulting in a SAIL Mark Certificate.
This certificate can then be reused by operators in their SORA applications—reducing their burden of proof and accelerating operational approvals.
A UAS with an established SAIL Mark (e.g. SAIL II) and validated safety functions—such as:
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M2 mitigation (e.g. Parachute Recovery System – PRS)
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Containment Medium Robustness (e.g. Flight Termination System – FTS)
can be commercialised more effectively, as operators can deploy it in higher population densities, or more complex operational environments.
SAIL MARKING APPLICATION SUPPORT
Although the CAP722K framework is still in early deployment, SAIL Marking is emerging as a key market differentiator and growth accelerator, providing:
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Increased trust from regulators
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Faster Operational Authorisations for end-users
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Stronger positioning in procurement and partnerships.
What we do:
Understand SAIL Marking requirements
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Translate CAP722K and UK SORA requirements into design and evidence expectations
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Assess your current system against:
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Applicable Operational Safety Objectives (OSOs)
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Target robustness levels
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Identify gaps, risks, and certification-critical elements
Define your SAIL strategy
We help you structure a clear and achievable pathway to SAIL Mark certification:
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Selection of target SAIL level aligned with your market
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Identification of design features required to meet robustness claims
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Definition of test plans and evidence generation strategy
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Integration with your product development roadmap
Support your conformity dossier
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Development of a comprehensive technical and compliance file, including:
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System architecture and safety functions
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Containment and mitigation strategies
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Test data, analysis, and reliability evidence
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Structuring of traceability between design features and SORA mitigations
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Pre-assessment readiness review
Engage with RAE-F and regulator
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Coordination with Recognised Assessment Entities (RAE-F) during review
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Support in addressing findings and non-conformities
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Preparation of robust justification arguments
Outcome
A SAIL Mark-certified UAS, with:
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Independently assessed and regulator-validated safety functions
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Reduced approval burden for operators
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Faster and broader commercial deployment potential
WHY WORK WITH US?
We make your regulatory compliance simpler and faster —so you can focus on your growth.
We are subject matter expertise. Hands-on knowledge of drone regulations and their evolution over the last 10 years, SORA approvals, and operational compliance. We stay at the forefront of industry guidance and regulatory changes, ensuring you benefit from accurate, reliable expertise you can trust.
We mutualise our return of experience from multiple ongoing SORA applications. Because we work on numerous SORA applications across different sectors, we see what works, what doesn’t, and what regulators expect. This shared return of experience strengthens every project we deliver, giving you a smoother and more predictable path to approval.
We are reactive and diligent. We know that regulatory timelines can impact your business timeline. That’s why we pride ourselves on fast, focused support, clear communication, and meticulous attention to detail—so your application progresses without delay.
We support both high-level strategy and detailed documentation
Whether you need strategic guidance or help with the practical work—manual reviews, documentation drafting, or compliance checks—we adapt to your level of support. We take care of the administrative and regulatory workload, freeing your team to focus on operations.
We are flexible to your needs and budget
Every organisation is different. We tailor our involvement, deliverables, and pricing to match your objectives, constraints, and resources—ensuring you get effective support without unnecessary cost.
New to the drone market? We accelerate your discovery journey.
Entering the drone ecosystem can feel overwhelming—but we make it simple, structured, and aligned with your goals. We help you:
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Build the essential knowledge and confidence to turn your ideas into meaningful, operational use cases
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Identify exactly where drones can add value within your organisation
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Understand the regulatory pathways that apply to you—starting with the Open Category and beyond
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Gain clarity on which technologies to invest in (and which to avoid)
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Define a robust business case, and anticipate the changes required
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Engage with confidence with your internal and external stakeholders
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Prioritise the “low-hanging fruit” opportunities that deliver quick wins and early success
Anne-Lise Scaillierez, Partner
Anne-Lise Scaillierez is partner at The Drone Office. Anne-Lise draws on 25 years of professional experience in Technology and Defence & Aerospace industries, including in the advancement of autonomous systems. She is also a volunteer as a Director of ARPAS-UK, the UK trade body representing the drone industry.
MEDICAL DRONE DELIVERY
KNOWLEDGE
