Protection Levels & Pricing

Three Levels.
Three Threat Classes.
One System.

We design protection to defined engineering parameters — not to a specific drone model. The system is configured based on the threat class relevant to your site, your risk tolerance, and your budget.

UAV Threat Classes

The system is engineered against three defined threat classes. Two standard threat classes cover the operational range. The system works through controlled deformation — not as a rigid barrier. Parameters are defined at concept stage before any detailed engineering.

THREAT CLASS M
Operational
Aerial Threat
Mass: 5–15 kg
Speed: 25–40 m/s
Scenario: Targeted high-energy impact
Equipment damage at roof zone
Localised impact, no structural threat
Operational disruption risk
THREAT CLASS H
Enhanced
Aerial Threat
Mass: Up to 25–30 kg
Speed: Up to 50 m/s
Scenario: Targeted high-energy impact
Roof structure damage
Critical equipment failure
Localised structural damage
ENGINEERING PRINCIPLE
Controlled
Deformation
Offset: 2.5–3.0 m from tank
Clearance: 2.0–2.5 m residual
Principle: Energy absorption, not rigid stop
Impact absorbed before tank contact
No load transfer to tank structure
Site-specific threat class adaptation

Engineering principle: The system is designed against defined impact parameters — mass, velocity, and angle — not against a specific drone model. The threat class is agreed with the client at the concept stage and forms the basis of all structural calculations.

Protection Levels

Three standard protection configurations — each designed for a specific risk profile. The appropriate level is selected based on site assessment, threat class, and client risk tolerance.

Level 01
BASE
Upper zone protection. Dome structure and top mesh barrier. Addresses Threat Class M operational range.
Dome structure over full roof area
Top mesh barrier — single layer
Independent steel framework
4 ring beam levels
Bronya thermal + anti-corrosion coating
Designed for threat classes
Class M Class M enhanced
Pricing provided during Stage 1 assessment — based on site geometry and selected threat class.
Level 02
MEDIUM
Balanced protection. Full upper zone plus partial vertical shielding. Addresses Class M and partial Class H.
Dome structure — reinforced
Double-layer top mesh
Vertical mesh — upper 60% perimeter
Independent steel framework
4 ring beam levels + intermediate bracing
Bronya thermal + fire + anti-corrosion
Designed for threat classes
Class M Class H partial
Pricing provided during Stage 1 assessment — based on site geometry and selected threat class.
Level 03
HEAVY
Maximum passive protection. Full perimeter shielding with reinforced dome. Addresses Class M and Class H in full.
Reinforced dome — heavy mesh
Full vertical perimeter mesh — double layer
Enhanced steel framework — heavier sections
Localized node protection
Full Bronya system — all surfaces
Designed for threat classes
Class M Class H partial Class H full
Pricing provided during Stage 1 assessment — based on site geometry and selected threat class.

What We Guarantee.
What We Don't.

Transparency about the scope of guarantees is part of how we build trust. We state clearly what the system is designed to deliver — and where the limits of its performance envelope lie.

We Guarantee
Structural calculations performed to EN/AISC standards
Design compliance with agreed threat class parameters
No load transfer to tank shell or roof structure
No hot work during installation
Full tank operational continuity during installation
Fabrication quality per specification
Installation quality per approved procedure
Preserved access to all roof equipment
We Do Not Guarantee
Protection beyond the agreed threat class parameters
Zero damage under any conceivable scenario
Performance against threats outside the design envelope
Absolute protection — this is a risk mitigation system
Behaviour under extreme or non-standard scenarios

This system is designed to manage risk, not eliminate it. Residual risk remains — including partial damage, fragmentation from intercepted objects, and non-standard scenarios. The engineering objective is to reduce the probability and consequence of damage to a level acceptable within the client's risk framework.

Questions Engineers Ask

The questions we hear most from HSE managers, asset integrity engineers, and procurement teams at their first technical review.

How do you validate the technology if there are no completed projects?
The structural engineering methodology is based on established codes — EN 1993 (Eurocode 3) for steel structures, with load calculations per applicable UAE wind zone standards. The protection concept follows the same engineering principles used in mesh-based barrier systems, debris containment structures, and industrial impact barriers across multiple industries. Our pilot project approach is designed precisely to generate documented, verified performance data under your site conditions — with full transparency of engineering assumptions and results. The first pilot becomes the proof of concept, and the basis for any scale-up decision. We do not ask for commitment beyond the pilot until that validation is complete.
Who performs the structural calculations?
Structural calculations are performed by qualified structural engineers with experience in steel framework design and industrial facility engineering. Basic engineering calculations are prepared at Stage 2 and reviewed with the client's technical team before proceeding to detailed design. Full detailed calculations — including connection design, foundation sizing, and load analysis — are produced at Stage 3, after project approval. Documentation is provided in a format suitable for client engineering review and, where required, third-party verification.
What specific threats does the system protect against?
The system is designed against defined threat classes — characterised by impactor mass, velocity, and approach angle — rather than against a specific drone model. This is the correct engineering approach: as drone technology evolves, model-specific design becomes obsolete. The threat class is agreed with the client at the concept stage, based on their risk assessment and site context. Two standard threat classes are defined — Class M (Operational: 5–15 kg, 25–40 m/s) and Class H (Enhanced: up to 30 kg, up to 50 m/s). The system operates through controlled deformation, offset 2.5–3.0 m from the tank — absorbing and redistributing energy, not stopping threats like a wall. The system can also be designed against a custom threat class if the client's security assessment defines specific parameters.
Does the system affect the tank's structural integrity or warranty?
No. The protection system is entirely independent — steel columns on separate reinforced concrete foundations with no structural connection to the tank shell or roof. No loads are transferred to the tank structure under any operating condition. The tank's original structural design, inspection regime, and manufacturer warranty are completely unaffected. This independence is a fundamental design requirement, not a feature — it ensures the tank remains within its original design envelope throughout the protection system's service life.
What happens if the system takes a hit — does it damage the tank?
The structural framework is designed to absorb and distribute impact energy to its own independent foundations — completely bypassing the tank. In the event of an impact within the design envelope, the mesh and structural elements deform in a controlled manner, dissipating energy before it can reach the tank shell or roof equipment. Damaged mesh panels can be replaced without removing the structural framework, and the system can be returned to full operation quickly. The tank remains operational throughout.
Can the system be installed on a tank that is currently in service?
Yes. This is a core design requirement. All installation work is bolt-assembly — no welding, no cutting, no grinding. No hot work permits are required. Foundation works proceed around the tank perimeter without interrupting operations. Column erection, ring beam installation, dome assembly, and mesh installation all proceed while the tank remains in full service. Typical installation timeline for a single 10,000 m³ tank is 4 to 6 weeks.
How do we start — what is the minimum commitment?
The minimum commitment is a Stage 1 concept assessment — a confidential site review, threat class discussion, and protection level recommendation. This is a low-cost, low-commitment entry point that produces a clear technical and commercial basis for a pilot decision. We recommend starting with a single pilot tank to validate performance under your specific site conditions before committing to broader deployment. No detailed engineering expenditure is required until the pilot scope and budget are agreed.

Define Your
Threat Class.
Start With One Tank.

A confidential Stage 1 assessment establishes the appropriate protection level for your specific site, threat context, and risk tolerance. No commitment beyond the assessment.

Request Stage 1 Assessment Engineering Approach