USV Preliminary Design and Feasibility 

USV Preliminary Design and Feasibility 

Client

Confidential

Year

2025

Design Team

Mario Caponnetto, Andrew Baglin, Carlo Belviglieri

Technical Specs

Length Over All (LOA)4.3 m Beam Over All (BOA)1.2 m T1.1 m Height5.7 m ∇ (DSPL)300 kg Ballasted Bulb60 kg Sail Area (SA)5 m2

Caponnetto-Hueber took part in the feasibility study and the preliminary design of a highly modular unmanned surface vehicle (USV). The team worked on aerodynamic and hydrodynamic optimization, as well as on the development of technical solutions aimed at ensuring effective automatic control.

Challenge / Brief

The feasibility study focused on defining the architecture and mission envelope of a fully energy-autonomous Unmanned Surface Vehicle (USV) intended for medium- and long-duration ocean operations. The primary challenge was to meet endurance, reliability, and control requirements while integrating multiple energy harvesting sources—rigid sails, solar capture, and potential hydro-generation—under highly variable environmental conditions. The system also needed to ensure structural robustness, operational safety, and seamless interoperability with both submerged and surface autonomous assets.

Approach / Methodology

The design and evaluation process combined CFD-based aero-hydro performance modelling, parametric structural studies, and VPP simulations to optimise geometry, stability, energy balance, and propulsion interaction. Multiple configurations were assessed to quantify trade-offs between thrust efficiency, energy harvesting capability, seakeeping robustness, and automatic control feasibility. Surrogate modelling and iterative sensitivity analyses supported early-stage feasibility decisions while ensuring that the preliminary design remained compatible with scalable construction, modular payload integration, and autonomous navigation control architectures.

Outcome / Impact

The study delivered a validated preliminary design framework capable of progressing toward detailed prototyping and operational testing under representative environmental scenarios. The results demonstrate that a multi-source energy harvesting strategy—integrated and optimised through high-fidelity numerical tools—can achieve endurance and autonomy targets suitable for surveillance, monitoring, and research missions. The methodology provides a replicable reference for future autonomous USV development, enabling reduced operational dependency on conventional power and contributing to the broader transition toward sustainable, low-impact marine robotic systems.

Technical Datasheet

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Testing Protocols

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USV Preliminary Design and Feasibility 

Preliminary design of a highly modular unmanned surface vehicle (USV).

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