The nautical path
A fascination with boats became a direction long before it became a profession.
NAVAL ENGINEER · YACHT DESIGNER
I turn curiosity for boats into design decisions, numerical models and buildable solutions—from first geometry to the shipyard floor.

CHAPTER 01 · THE VOYAGE
The portfolio begins with the reason behind the work: a path through design, naval architecture, research and production engineering.
A fascination with boats became a direction long before it became a profession.
Learning to turn an idea into proportion, geometry and a visual language.
Adding hydrostatics, structures and performance to the design process.
Using numerical methods to investigate planing hulls and hydrofoil assistance.
Connecting three-dimensional design with drawings, systems and buildability.
CHAPTER 02
MSc research · Hydrodynamics · Numerical modelling
BSc thesis · Yacht design · Naval architecture
Hand drawing · Hull form · Marine systems
HYDROFOIL-ASSISTED STEPPED PLANING HULL
A custom MATLAB model coupled hull equilibrium, XFOIL data and a robust design search to answer one performance question.
predicted total resistance at the 6 m/s design condition

Two symmetric T-foils with panel-normal struts.
Vertical force and pitch moment solved together.
Position, chord, spans and incidence explored.
Local robustness and branch continuity verified.
TECHNICAL DEPTH / METHOD
Candidate equilibria were screened, checked around ten neighbouring states, recentred when needed and followed through speed without jumping between unrelated roots.

V16 logical workflow—shown instead of source-code listings.
01 · PERFORMANCE
Foil-assisted resistance stays nearly constant across the accepted speed range while bare-hull resistance continues to rise.

Resistance and trim along the continuous strict branch.
02 · ADJUSTABLE INCIDENCE
The NACA 2412 terminal wing rotates about its quarter-chord pivot. Incidence decreases with speed to control lift while preserving the same equilibrium branch.

Quarter-chord pivot and incidence reference at the design condition.
The numerical schedule defines the required motion. Actuator and hinge loads, positive locking, backlash, sealing, corrosion and a fail-safe position require mechanical validation.
03 · WHY IT WORKS
Foil lift and bow-up moment unload the hull. The resulting reduction in wetted area more than offsets the foil's own drag.

Wetted planform comparison at the design condition.

Independent audit of force and moment contributions.
WHAT THE RESULT MEANS
The selected state passes equilibrium, geometry and local robustness checks. It remains a preliminary quasi-static result—not CFD, structural verification or performance certification.
NEXT VALIDATION
Free-surface CFD, structural and ventilation assessment, followed by model or prototype testing.
Model the physics. Challenge the result. Turn analysis into a design decision.

19.6 M ALUMINIUM SAILING YACHT
A sailing yacht conceived for ocean-going cruising and developed as one connected system—from general arrangement and aluminium structure to onboard systems, propulsion and stability.
01 · THE DESIGN BRIEF
The brief preserved the character of a classic sailing yacht while rethinking performance, access, systems and life on board for a contemporary long-range cruiser.
02 · FROM LINES TO LIFE ABOARD
Exterior proportions, interior volume, structure and service access were refined together through an iterative design spiral.


03 · STRUCTURAL LOGIC
The EN 5083 aluminium shell, panels and stiffeners were sized in Excel from ISO 12215-5 rule formulas, then developed around the lifting-keel box, machinery, interior clearances and build sequence.

04 · ENGINEERING THE WHOLE
The value of the thesis lies in coordinating each discipline—not presenting every calculation in isolation.
Bilge, fuel, ventilation, fresh & sea water, waste, lifting keel, electrical system and steering layouts.
Resistance prediction, propeller selection and engine matching.
Loading conditions, trim and righting-arm assessment.

Integrated routing of services, ventilation, machinery and steering within the 3D model.

Engine–propeller matching at the design-speed operating point.

Transverse righting-arm and longitudinal-attitude checks for the sailing condition.

A complete yacht proposal, developed from silhouette to stability.
DESIGN FOUNDATIONS
Before CAD, drawing was the method used to investigate hull form, internal volume, construction and propulsion—one decision at a time.

Accommodation, circulation and machinery resolved through the longitudinal cut.
01 · SPACE IN SECTION
The drawing connects exterior proportions with people, access, accommodation and the volume demanded by the propulsion system.
02 · CONSTRUCTION & TRADITION
A traditional gozzo study links hull geometry to frames, keel, planking and the vocabulary of small-craft construction.

Hull form and structural anatomy considered as the same design problem.

Alternative propulsion architectures studied through installation sketches.
03 · PROPULSION ARCHITECTURES
Comparative sketches reveal how each propulsion architecture changes the relationship between machinery, structure and underwater geometry.
Before CAD, drawing was the tool I used to understand the boat.

PROFILE / SIMONE MANGIERI
Naval engineer and yacht designer working at the intersection of concept, numerical analysis and production. Based in La Spezia, Italy.