040 — 5m Cold-Moulded Electric Launch

BlueTree

BRYD – Ben Rogerson Yacht DesignBlueTree Boat Builders

This 5-metre wooden launch was developed in close collaboration with BlueTree Boat Builders as part of their growing range of elegant, small-scale electric craft.

Our role was to deliver a complete naval architecture and design package—supporting BlueTree’s vision with a practical, build-ready solution that captured the aesthetic and functional goals of the project.

Design-Led Development

The brief called for a refined, quiet-running electric day launch suitable for the Thames and other inland waterways. Our approach focused on blending traditional lines with clean, contemporary detailing. The result is a design that sits confidently between heritage and innovation—retaining the charm of a classic river launch while optimising form and structure for modern performance and sustainability.

We provided the full design, naval architecture, and construction detailing tailored to BlueTree’s preferred materials and build methods. Close attention was paid to proportions, trim, and hydrodynamic balance—ensuring not only an attractive profile but also reliable, efficient performance with electric drive.

BlueTree 5m cold-moulded electric launch moored alongside a pontoon

Project overview

Client & builderBlueTree Boat Builders
Vessel5m cold-moulded electric launch
PropulsionePropulsion 6 kW pod drive
WatersRiver Thames and inland waterways
BRYD roleDesign, naval architecture & construction detailing
BlueTree electric launch under way on the River Thames
Under way on the Thames · electric pod drive

Design Parameters

BlueTree 5m launch general arrangement drawing
General arrangement

General Statistics

Length overall
5.0 m
Beam overall
1.91 m
Draught
0.6 m
Lightship weight
580 kg

General Features

Propulsion
ePropulsion 6 kW pod drive
Batteries
2 × ePropulsion E80, 4 kWh each
Maximum persons
5
Design category
D
Construction
Vendia marine ply over laminated oak and Douglas fir
Builder
BlueTree Boat Builders
BlueTree launch from above, showing the timber interior
Traditional timber interiorA classic river launch, quietly powered by an electric pod drive.

Design & Construction

Structure and Build Support

Working closely with BlueTree’s workshop team, we designed the hull to be constructed from sustainable Vendia marine ply over laminated oak and Douglas fir framework. The structural layout was developed for efficient assembly and long-term durability, with careful detailing around the drive pod, bulkheads, and internal fit-out. Our design package included comprehensive digital modelling, CNC-ready outputs, and construction drawings—reducing ambiguity in the build process and supporting a smooth transition from drawing board to water.

Outcome

The finished vessel is a beautifully built launch that showcases both craftsmanship and quiet innovation. Powered by an electric pod drive and finished to a high standard with a traditional timber interior, it exemplifies what’s possible when design and build expertise come together early in the process. The launch now operates on the River Thames, delivering clean, low-impact boating in a refined and classically styled package.

BlueTree launch bow and timber interior
Cold-moulded hull · timber interior

“This project was a pleasure to be involved in. It demonstrates how thoughtful naval architecture can complement traditional craftsmanship—delivering not only a beautiful launch, but one that performs quietly and efficiently with modern electric propulsion.

Working closely with BlueTree Boat Builders, we were able to create a design that respected the elegance of classic wooden craft while meeting today’s standards for usability and sustainability. Our approach is always to listen carefully, design practically, and support builders with the detail they need to bring a concept to life with confidence.”

Ben Rogerson · Director, BRYD

BRYD services on this project

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