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Expert Naval Architecture Services in Salisbury
With nearly five decades of experience in naval architecture and maritime consultancy, our firm specialises in delivering tailored solutions for diverse marine projects. Founded on a foundation of technical excellence and client-focused service, we collaborate with H2NA Limited to combine Ian Darley's extensive industry expertise with cutting-edge naval architectural practices. Our services encompass conceptual design, stability investigations, feasibility studies, and comprehensive survey work, supporting clients across the UK and internationally.

From small workboats to complex offshore vessels, we provide meticulous attention to detail and regulatory compliance, ensuring safety, efficiency, and longevity in every project. Our team's deep understanding of maritime regulations and practical vessel operations enables us to address challenges with innovative, cost-effective solutions. Through continuous collaboration with industry partners and adherence to the highest professional standards, we maintain our reputation as trusted advisors in the marine sector.
Services
Conceptual Design Stability Investigations Feasibility Studies Vessel Conversions Marine Surveys Owners' Representative Services New Building Supervision Arbitration Support
Highlights and features
  • We offer 50 years of combined naval architecture expertise through Ian Darley and H2NA Limited
  • Our team conducts detailed stability investigations and regulatory compliance assessments
  • We specialise in bespoke vessel design and conversion projects for diverse maritime sectors
  • Our collaboration with H2NA combines traditional expertise with modern naval architectural practices
  • We provide comprehensive survey services including inclining experiments and structural assessments
Services
Conceptual Design
We develop initial vessel design concepts tailored to operational requirements, considering stability, structural integrity, and regulatory compliance. Our designs balance functionality with cost-effectiveness for new builds and conversion projects. Clients benefit from our extensive experience across diverse marine sectors.
Stability Investigations
Our stability assessments include hydrostatic calculations, statical stability analysis, and preparation of full stability booklets. We conduct inclining experiments and ensure compliance with statutory and classification society requirements for commercial vessels.
Feasibility Studies
We evaluate technical and economic viability of maritime projects through detailed investigations. Services include general arrangement drawings, tank testing, machinery proposals, and conversion feasibility assessments for existing vessels.
Vessel Conversions
We specialise in conversion and refit projects, including structural modifications, propulsion system upgrades, and regulatory compliance updates. Our work ensures extended vessel lifespan while meeting modern operational requirements and safety standards.
Marine Surveys
Our survey services cover structural assessments, machinery evaluations, and regulatory compliance checks. We provide detailed reports for statutory certification, insurance purposes, and pre-purchase inspections across commercial and specialised marine craft.
People
Ian C Darley
Naval Architect and Maritime Consultant
With nearly 50 years' experience, Ian Darley specialises in vessel design, stability investigations, and marine consultancy. His expertise spans workboats, passenger vessels, and offshore craft, combining traditional knowledge with modern naval architectural practices.
James Hare
Business Director
Chartered naval architect with over 35 years' experience in UK Ministry of Defence projects, specialising in vessel management, regulatory certification, and technical specifications for complex maritime operations.
Philip Henderson
Technical Director
Chartered naval architect with 20+ years' experience in stability requirements, structural calculations, and inclining experiments. Specialises in producing stability models and conducting comprehensive vessel surveys for commercial clients.
Questions
What naval architecture services do you specialise in?
We specialise in conceptual design, stability investigations, feasibility studies, vessel conversions, and comprehensive marine surveys for commercial and specialised vessels.
How does your collaboration with H2NA benefit clients?
This partnership combines Ian Darley's 50 years' experience with H2NA's modern naval architecture expertise, providing enhanced technical resources and industry knowledge.
What types of maritime projects do you handle?
We work on new builds, conversions, refits, regulatory compliance assessments, and arbitration cases across workboats, passenger vessels, and offshore craft.
Can you assist with international maritime regulations?
Yes, our team has extensive experience with UK Workboat Code, classification society requirements, and international maritime regulatory frameworks.
Do you provide vessel survey and inspection services?
We offer inclining experiments, structural surveys, machinery assessments, and stability data preparation for statutory and classification purposes.
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