UK SORA and Regulatory Services
Expand the scope of your drone operations
Go beyond standard permissions
Unlock the full potential of your drone missions with the heliguy™ UK SORA consultancy service.
UK SORA is a new risk-based methodology introduced for complex drone operations in the Specific Category - including BVLOS flights.
It replaces the OSC methodology and aligns the UK with internationally-recognised standards.
Work with our in-house regulatory specialists to streamline the process of preparing a UK SORA application. They offer expert support, advice and client involvement throughout; and reduce the chances of requiring costly rewrites.
We'll help you build an ambitious and compliant UK SORA application and also support operators through the transition from OSC to UK SORA.
Our consultants have helped 30+ clients obtain waivers beyond standard permissions, including for EVLOS operations, flights up to 1,000ft altitude, and secured our own permission to operate DJI Dock BVLOS in an Atypical Air Environment (AAE).
To book a consultation call, contact us.

What is UK SORA?
UK SORA (Specific Operations Risk Assessment) is the Civil Aviation Authority's (CAA) structured framework for assessing and authorising higher-risk drone operations in the Specific Category.
It is an online digital risk assessment system designed to enhance safety and efficiency of drone operations and meet the forecasted demand of the UK drone sector.
At its core, UK SORA helps operators:
Identify the risks of a proposed operation to both people on the ground and other airspace users.
Mitigate those risks through safety planning, technical capabilities, and operational procedures.
Demonstrate to the UK CAA that the operation can be carried out safely and responsibly.
What are the benefits of UK SORA?
UK SORA is designed to bring numerous benefits to the drone industry. These include:
Clear, Standardised Framework: Operators follow a recognised structure that improves the quality of applications. It provides a transparent methodology for UAS risk assessment that reduces the risk of inconsistencies.
Proportional: Ensures that safety measures employed are proportional and appropriate to the risk posed by the specific UAS operation.
Reduced Workload: Reduces the workload for operators in developing an appropriate safety case.
Quicker Turnaround: The UK CAA says that UK SORA will help to reduce the timescales involved in assessing applications and operators receiving authorisations.
International Alignment and Global Standards: Builds consistency with European and global drone regulations - important for companies with international ambitions.
Tailored Risk Management: Encourages proactive identification and mitigation of operational risks.
Future-Proof Compliance: SORA is likely to be the basis for drone regulations worldwide, making early adoption a strategic advantage.

What drone operations are covered by UK SORA?
UK SORA covers operations that exceed the scope of PDRA01 (Pre-defined Risk Assessment) Operational Authorisations - such as flights beyond visual line of sight (BVLOS).
Examples of drone missions covered by UK SORA include:
Dropping items from your drone;
Flying beyond visual line of sight (BVLOS) - particularly relevant for solutions such as the DJI Dock ecosystem;
Flying a drone weighing more than 25kg, such as DJI FlyCart 30;
Flying close to crowds;
Flying close to people with aircraft that weigh 500g or more;
Flying at increased heights above ground level;
Swarm operations;
Flying more than 120m (400ft) above ground level.
A UK SORA-based Operational Authorisation lasts for 12 months.

What operations are not covered by UK SORA?
There are certain types of operations that are outside the policy limits of UK SORA. These include:
Operating unmanned aircraft with a dimension larger than 40 metres;
Operating unmanned aircraft with a maximum cruise speed above 200 metres per second;
Operations above Flight Level 660 (FL660);
Operating unmanned aircraft with a maximum dimension of more than 3 metres or maximum speed over 35 metres per second, where the population density is greater than 50,000 people per km².
Some operations require additional applications that are outside UK SORA, or may require the use of a policy that has not yet been released. Examples include:
Multiple Simultaneous Operations (MSOs);
Operations that require an airspace change;
Carrying dangerous goods.
Key concepts of UK SORA
SORA involves several core concepts. These include:
Concept | Description |
---|---|
Operational Volume | Consists of the area where you plan to operate and a contingency volume. |
Ground Risk | The risk of the drone hitting a person on the ground and causing a fatality. Ground Class Risk (GRC) can range from GRC1 to GRC7, with 7 being the highest. |
Air Risk | The risk of a mid-air collision between your drone and manned aircraft. Air Risk Class (ARC) can range from ARC-a to ARC-d, with ARC-d being the highest. |
SAIL Level | Represents the overall risk of the operation, from 1 (lowest risk) to 6 (highest risk). SAIL levels are determined by GRC and ARC. |
Containment Level | Determines the technical and operational mitigations to contain the flight within the operational volume and ground risk buffer. Containment levels are determined by SAIL and ground risk in the adjacent area, |
Operational Safety Objectives (OSO) | Requirements you must meet when carrying out operations. SAIL levels determine the set of OSOs. |
Compliance | Compliance Approach: How you choose to comply with the regulation. Compliance Evidence: How you demonstrate that you comply, ie flight logs, technical data sheets, and design specs. |
UK SORA Vs Drone OSCs
UK SORA replaces the Operating Safety Case (OSC) methodology and introduces a risk-based, scalable, and internationally-aligned methodology.
UK SORA brings numerous benefits compared to the OSC methodology. These include:
Framework
OSCs: Bespoke and operator-led, with no standardised structure.
SORA: Follows a defined, risk-based framework recognised internationally.
Risk Assessment
OSCs: Relied heavily on narrative and operator judgement.
SORA: Applies quantitative metrics (like GRC, ARC, and SAIL) to assess risks systematically.
Consistency
OSCs: Quality and format varied widely.
SORA: Brings uniformity to applications, helping the UK CAA assess operations faster and more consistently.
Global Alignment
OSCs: Unique to the UK.
SORA: Based on JARUS global standards, making it easier to expand internationally.

What does UK SORA mean to current OSC holders?
Valid OSC-based Operational Authorisations will remain valid until their expiry date.
In most cases, operators will need to make a new application using the UK SORA-based Application Service once their OSC-based Operational Authorisation expires.
What is the SORA application process?
There are three steps to applying for a UK SORA-based Operational Authorisation - and heliguy™ can support you throughout.
Step 1: Calculate your SAIL and containment levels. It's free to do this.
Step 2: Assessment 1 - submit your proposed operations and approach to ground risk or air mitigations.
Step 3: Assessment 2 - submit your approach to the requirements that apply to the proposed operations.
You must have an Operator ID and an Operations Manual. SORA applications are made through the UK-SORA Application Service.
What is the price of a UK SORA-based Operational Authorisation?
UK CAA charges for a UK SORA-based Operational Authorisation vary by SAIL level. This reflects the effort needed to assess applications as the complexity of operations increases.
The application prices are outlined below.
SAIL | Assessment 1 - Fixed Charge | Assessment 2 - Fixed Charge | Total Fixed Charge | Assessment 2 - Additional Charge Per Hour |
---|---|---|---|---|
1 | £2,185 | No charge | £2,185 | Not applicable |
2 | £2,185 | £1,310 | £3,495 | £330 |
3 | £2,185 | £11,574 | £13,759 | £496 |
4 | £2,185 | £11,574 | £13,759 | £496 |
5 | £2,185 | £37,782 | £39,967 | £496 |
6 | £2,185 | £37,782 | £39,967 | £496 |
There is no VAT to pay.
You do not have to pay for Assessment 2 if you decide to withdraw your application during or after Assessment 1, or if the UK CAA refuses your application in Assessment 1.
Reapplication Fees
A UK SORA-based Operational Authorisation lasts for 12 months.
You can reapply from 28 days before your authorisation expires and you must reapply before the expiry date to preserve the anniversary of the authorisation.
You cannot make any changes to the scope of your UK SORA authorisation when you reapply. Any significant changes that require a new Operational Authorisation will require a new UK SORA application.
The reapplication fees are below.
SAIL | Fixed UK CAA Charge |
---|---|
1 | £2,185 |
2 | £3,495 |
3 | £8,816 |
4 | £8,816 |
5 | £13,420 |
6 | £13,420 |
Remote Pilot Competency Framework
UK SORA brings with it new remote pilot competencies: The Level 1-4 Remote Pilot Certificates.
The GVC will remain in place alongside the new certificates. The GVC and RPC-L1 are broadly similar in the level of competency needed to attain them - although an RPC-L1 certificate for the same category of drone is required to move on to RPC-L2, which is designed for BVLOS operations.
The table below provides an overview of Level 1, 2, 3, and 4.
Level | Description |
---|---|
RPC-L1 | Covers all air risk classes where VLOS is the mid-air risk collision mitigation. Similar in scope to the GVC. The L1 serves as the foundation for all subsequent Remote Pilot Certificates. |
RPC-L2 | Covers BVLOS in ARC-a where the remote pilot is not expected to routinely avoid traffic. For example, an atypical air environment (drone in a box operation or linear powerline inspection). |
RPC-L3 | Covers BVLOS in significantly more complex airspace classes such as ARC-b and ARC-c. The remote pilot may be required to avoid traffic on a routine basis and manage the drone flight path based on dynamic situational awareness. For example, BVLOS operations transiting multiple air-risk classes. |
RPC-L4 | For the most complex BVLOS operations where traffic avoidance could be routine and the type of traffic could be commercial air transport. |
heliguy™: Your UK SORA partner
heliguy™ is proud to become your UK SORA partner.
Our in-house regulatory specialists provide end-to-end assistance to help you build an effective, ambitious, and compliant SORA application - tailored to your needs and saving you time, effort, and uncertainty.
Access constant support and advice, including a mentoring and review service before submission to the UK CAA, as well as a dedicated project manager to provide updates.
Our in-house specialists built a prestigious track record under the legacy OSC methodology, helping clients achieve permissions such as single pilot operations to 1,000ft altitude; EVLOS operations to a maximum range of 3,000m; and heavy lift OSCs for up to 101kg. We also secured permission to operate DJI Docks BVLOS in an AAE.
We'll use this experience to help you submit SORA applications and smooth your transition from OSC to SORA.
With heliguy™’s help, you can present a professionally prepared SORA application that maximises your chances of success.

End-to-end support throughout your UK SORA journey
The heliguy™ UK SORA consultancy service has a multi-step approach – with support throughout.
Consultation: Book a dedicated call with our consultancy team. We'll discuss your aspirations and expectations, ensuring they are realistic and achievable. If you don't need to go through UK SORA for your operations, we won't tell you to pursue this route.
Proposal: If UK SORA is appropriate, you will receive a free no-obligation quotation and a statement of work. Once you are happy, you can move on to step three - building your UK SORA application with heliguy™ by your side.
Build Your Application: We'll help you build a UK SORA application that is tailored to your operations, making it as flexible as it needs to be. Your project manager will keep you updated throughout.
Submit to UK CAA: We will review your UK SORA proposal before it is submitted to the CAA.