Stuart Roy
Naval Architect & Consultant

Fellow of the Royal Institution of Naval Architects
Chartered Engineer


© Stuart Roy 2015
Yacht & Boat Design Services
Quality work at reasonable prices
Design Work for all vessels types, length 1.5m to 35m
            (sail, power, recreational, commercial, etc.)

Feasibility Studies

Concept Design of New Craft

Proposal Drawings

Detailed Design

Lines Plans

General Arrangement Drawings

Construction Plans

Weight Estimation

Calculations for Ballasting & Trimming

Sail Plans

Rig Design

Designs for New and Replacement Keels

Rudder Design

Plans for Conversions


Structural Design & Analysis

Review & assessment of proposed designs

Rig investigations

3D Hull Modelling (any size or type of vessel)

Computer Models of hulls & complete vessels


Expanded Panels and Parts for CADCAM

Taking-Off Lines  

Stability Consultancy

Stability Booklets for MCA Codes

Inclining Tests

Damage Survivability Assessment

STIX Assessment for Racing Yachts

Stability Assessment to ISO12217

Review & Assessment of Stability Booklets
Performance Analysis

Tank Testing & Analysis of Results

Sailing Yacht Performance (VPP)

Resistance and Powering Studies

Engine Selection  

Propeller Selection


Advice on MCA Codes, RCD, ISO Standards

Classification Society Rules, Lloyds, RINa, etc.

Rule Compliance Review

Design for Rule Compliance


Maxsurf Training at Beginner/Inter’/Advanced

Hydromax Training at Intermediate/Advanced

AutoCAD LT Training

Personal Tuition - Yacht & Boat Design

Career Advice/Mentoring - Naval Architecture


General Condition Surveys (out of water)

Damage Surveys

Oil Sampling for Spectro-Chemical Analysis

Assistance with Boat Search/Purchase


Acceptance Trials

Sea Trials

Speed Trials

Sailing Trials

Manoeuvring Trials


All work charged at £30 an hour, no VAT to pay

Terms: Payable on invoice within 28 days
I would be pleased to discuss and quote for any technical work related to the design, construction and evaluation of yachts and boats.  The following lists indicate previous work that has been commissioned by clients for their projects.