Where FPV Confined Space Inspections Add the Most Value

FPV confined space inspections are most effective when they are used for the right environments and objectives.

They are not intended to replace all confined space entry or physical inspection methods. Instead, they add the greatest value where access is difficult, risk is high, and visual information is needed to inform decisions.

This article outlines the types of assets and environments where FPV confined space inspections consistently provide the strongest return.

1. Tanks, Vessels, and Pressure Systems

Storage tanks and vessels often require inspection for:

• Corrosion

• Coating failure

• Debris build-up

• Internal damage

FPV inspections allow a rapid internal visual assessment without immediate confined space entry.

Why FPV adds value here:

• Reduces or delays the need for manned entry

• Identifies priority areas before intrusive inspection

• Supports planning for cleaning, access, or repair works

FPV is particularly useful where access points are limited and internal geometry is simple but hazardous.

2. Silos and Hoppers

Silos and hoppers present elevated risk due to:

• Height

• Residual material

• Dust and visibility issues

FPV inspections allow operators to visually assess internal condition while keeping personnel out of potentially unstable or hazardous environments.

Typical uses include:

• Identifying blockages or build-up

• Checking internal linings or structures

• Assessing damage prior to maintenance

These inspections are often used as a preliminary assessment before deciding whether full entry is required.

3. Roof Voids and Ceiling Spaces

Roof voids and ceiling spaces are frequently:

• Poorly lit

• Congested with services

• Difficult to access safely

FPV drones can navigate these environments efficiently to identify:

• Structural issues

• Water ingress

• Damaged services

• Insulation displacement

This is especially valuable in large commercial or industrial buildings where traditional access would be time-consuming or disruptive.

4. Ducting and Ventilation Systems

Large-scale ducting and ventilation systems can be challenging to inspect manually, particularly over long runs or at height.

FPV inspections allow:

• Visual assessment of internal condition

• Identification of blockages or damage

• Verification of cleanliness or integrity

These inspections are often used to target cleaning or maintenance, rather than replacing physical intervention entirely.

5. Plant Rooms and Service Corridors

Plant rooms often contain:

• Dense equipment layouts

• Restricted access

• Multiple hazards

FPV inspections are useful for:

• General condition surveys

• Accessing areas behind or above equipment

• Reducing time spent in constrained working environments

They allow inspection work to be carried out with minimal disruption to operations.

6. Culverts, Tunnels, and Drainage Structures

FPV inspections are particularly effective in:

• Culverts

• Short tunnels

• Drainage runs

They allow visual checks for:

• Obstructions

• Structural damage

• Water ingress or debris

In many cases, FPV inspections reduce the need for personnel to enter confined, wet, or unstable environments unnecessarily.

Where FPV Typically Adds Less Value

For balance, FPV inspections are less effective where:

• Physical testing is required

• Visibility is severely limited by dust or vapour

• Spaces are too small for safe manoeuvring

• Certified measurements are required

In these cases, FPV may still support planning, but should not be relied upon as the primary inspection method.

Using FPV as Part of a Wider Inspection Strategy

FPV confined space inspections deliver the most value when they are:

• Clearly scoped

• Used to answer specific questions

• Integrated with traditional inspection methods

They are particularly effective as a first-stage inspection, helping asset owners and engineers decide:

• Whether entry is required

• Where access is needed

• What level of intervention is appropriate

Conclusion

FPV confined space inspections are at their best when used where access is difficult, risk is high, and visual insight is required quickly.

By targeting the right environments, FPV inspections can:

• Reduce unnecessary confined space entry

• Improve safety

• Lower inspection costs

• Support better-informed decisions

Used appropriately, they are one of the most valuable tools available for modern confined space inspection.