ORBIDRON completes drone-assisted SS4 + CAP on a Suezmax crude oil tanker in 6 days
A January 2026 project note on hybrid drone + manual UTM execution for a demanding tanker survey scope.
Key takeaways:
Project type: Drone-assisted SS4 + CAP
Vessel type: Suezmax crude oil tanker
Completion time: 6 days
Methodology: Hybrid drone + manual UTM
Focus: Access, execution efficiency, and class-ready reporting
In January 2026, ORBIDRON successfully completed a drone-assisted Special Survey No.4 (SS4) and CAP project on a Suezmax crude oil tanker in 6 days, applying a hybrid inspection methodology built around speed, access, and class-ready execution.
This project is a strong example of where drone-assisted inspection creates real operational value. On mature tanker structures, the challenge is often not only the inspection scope itself, but the practical difficulty of accessing confined, elevated, or otherwise hard-to-reach areas efficiently while maintaining the quality and structure of the final deliverables.
For this project, ORBIDRON deployed a hybrid drone + manual UTM workflow. Drone-assisted close-up inspection and UTM were used where access was more difficult or operationally restrictive, while manual UTM was applied in safely accessible lower areas. The objective was straightforward: execute a demanding SS4 + CAP scope in a more efficient way without compromising technical quality or reporting discipline.
Why SS4 + CAP is a demanding scope
SS4 and CAP represent one of the more demanding combinations in tanker structural assessment.
Beyond basic compliance, these scopes require clear visibility on:
steel condition
structural integrity
coating performance
the condition of critical spaces and structural members
In practice, access often becomes one of the biggest constraints. Traditional execution can quickly become influenced by staging requirements, rope access dependency, compartment restrictions, and the difficulty of reaching upper structures in confined or hazardous spaces.
This is where drone-assisted inspection becomes useful — not as a replacement for all conventional methods, but as a practical tool within a wider inspection methodology.
ORBIDRON’s approach is based on applying the right inspection method to the right part of the structure.
For hard-to-reach, elevated, or confined areas, drone-assisted close-up inspection and UTM can support faster and safer execution while improving visibility on structural condition.
For lower and directly accessible areas, manual UTM remains the most practical and efficient approach.
Combined correctly, the two methods create a workflow that is both technically robust and operationally efficient. This hybrid model reduces unnecessary access burden while preserving the structure and quality of the final deliverables expected in serious survey work.
Data-rich, class-ready outputs
As with all ORBIDRON projects, the focus is not only on access, but on the quality of the final output.
Drone-assisted execution supports a more data-rich inspection record by combining:
close-up visual inspection
structured UTM data
high-resolution photo and video documentation
clearer localization of findings within the inspected structure
The result is a deliverable package that is easier for owners, managers, and technical teams to review, track, and use for follow-up planning.
In demanding survey environments, that clarity matters. A good inspection is not only about taking readings — it is about producing a technical record that helps decision-makers understand what was found, where it was found, and what it means in practical terms.
A better inspection workflow for tanker surveys
This project reflects ORBIDRON’s broader view of drone-assisted inspection in the maritime sector.
The value is not in the drone alone. The value is in creating a better inspection workflow — one that improves access, reduces friction in execution, supports safer operations, and produces clearer technical outputs for the client.
For tankers facing major class scopes, CAP reviews, pre-drydock planning, or broader structural condition assessments, that approach can make a meaningful difference.
ORBIDRON remains focused on applying drone-assisted UTM and close-up inspection where it genuinely improves the way maritime surveys are performed — with technical discipline, operational practicality, and reporting quality at the center of the process.
Discuss your next tanker survey
For vessel SS / IS / CAP scopes, pre-drydock inspections, or drone-assisted UTM and close-up surveys, ORBIDRON is available to discuss project-specific requirements and deployment options.
Contact ORBIDRON
Email: contact@orbidron.com
Website: www.orbidron.com
Phone: +30 210 710 6725