We created the Raku range to bring together all of the best features and technologies of the cruising cats we've developed over the last 30 plus years.
Raku's sleek profile presents a clean modern style, but more than that it helps to clean up the air flow, improving performance and expanding the horizons of your journey.
The Raku cats draw on the latest technology in design and construction, with carbon fibre deployed strategically for optimum strength, stiffness and light weight.
The Raku cats incorporate innovative construction techniques for simplicity and minimum cost.
The Raku cats offer a level of
comfort, performance and
style unrivaled in the world
of high performance cruising
The combined Newsletter for Grainger Designs and Rocket Factory Trimarans
Our DuFLEX kit systems streamline the construction process for amateurs and professional yards alike. More details here…