Naval Architecture
Stability, sea‑keeping, and operability studies for marine, subsea, and offshore installation vessels—clear, code‑aligned, and documented for class and stakeholder review.
Sea‑keeping and stability engineered around your operations
We assess vessel stability, motions, and operability envelopes to keep missions safe and efficient. From intact/damaged stability and RAOs to motion‑induced response checks, we translate analysis into installation limits, weather windows, and practical deck arrangements. This includes studies supporting offshore wind turbine installation vessels—such as jack‑up hull structure considerations and associated sea‑fastening designs for deck equipment and turbine components.
What we deliver
Naval architecture for marine and offshore vessels: stability, RAOs, sea‑keeping, jack‑up installation support, and sea‑fastening design.
Deck integration & layouts
General arrangements, transport/over‑side arrangements, pad‑eyes, spreaders, and lift studies aligned to LOLER/PUWER.
Assurance packs
Drawings, calculations and structural assessment reports, method statements, and O&M inputs packaged for class/owner review.
Sea‑keeping & RAOs
Motion analysis, accelerations, operability limits, and mission envelopes for installation, IMR, and handling tasks (using tools such as Orcaflex where appropriate).
Jack‑up & installation vessel support
Hull/structure checks that inform allowable operations and deck load paths; sea‑fastening design for winches, foundations, and turbine components (nacelles, towers etc).
Code alignment
Verification notes to relevant standards (e.g., DNV/Lloyd’s Register and site procedures) with clear assumptions and conservative margins.
Focussed on delivery
Subco delivers high‑quality engineering work, on demand. We help companies deliver critical packages of work—without the delays, overhead, or commitment of hiring. Whether it’s a capacity or capability gap, we provide defined, fixed‑price solutions that keep projects moving.
Discover our platform
How we deliver
- 1
Fixed‑price workpacks
Scoped analyses with stability books, RAOs/motion plots, drawings, and verification notes—ready for class/owner review.
- 2
Practical recommendations
Operability limits, deck arrangements, reinforcement details, and sea‑fastening schemes that are safe and buildable.
- 3
Compliance built in
Documentation aligned to relevant codes and site procedures (e.g., LOLER/PUWER for lifting, class rules for marine).
- 4
ISO‑aligned processes
ISO 9001 quality and ISO 27001 information security; our client portal provides full visibility from scope to delivery.
- 5
Speed without shortcuts
Rapid model build, transparent assumptions, peer review, and sign‑off so projects keep moving.
FAQs
What naval architecture services do you provide?
We cover stability analysis, trim and heel calculations, structural integration studies, weight management, deck load assessments, and vessel modification assessments — for offshore support vessels, construction vessels, and workboats. We also conduct global and local hull structure analyses of jackup vessels for the transportation of wind turbine towers, nacelles, and blades.
Can you assess the impact of adding new equipment to a vessel?
Yes. We carry out weight impact assessments, stability checks, and structural integration reviews to determine whether a vessel can safely accommodate new deck equipment, LARS, or other modifications without compromising operational limits.
Do you work with class societies on vessel modifications?
We prepare and submit modification packages to class societies including DNV, Lloyd's, and Bureau Veritas, managing the approval process through to final sign-off.
