- Technology and Innovation
Reducing CO2 Emissions by 50 Percent: The SAY 52 Production Cycle
Automotive Manufacturing on the Water
Drawing direct parallels between luxury automotive design and marine architecture requires more than superficial aesthetic similarities. SAY Carbon Yachts relies heavily on the background of chief technology officer Karl Wagner, whose two decades of composite expertise shape the builder’s current output. The manufacturer utilizes lightweight carbon-fibre construction to deliver quick acceleration, sharp handling, and substantial velocity with significantly reduced power output.
Scaling Carbon-Fibre Composites
Wagner founded Carbo Tech Composites in 1993, eventually supplying carbon-fibre components to Aston Martin, Porsche, and Formula One racing teams. His facility ultimately handled all carbon-fibre monocoque production for McLaren’s road-going sports cars, outputting 20 monocoques daily. After selling the operation in 2014, he transitioned his focus to marine applications, joining SAY Carbon Yachts founder Sven Ackermann to refine the company’s direction strictly toward day speedboats.
The SAY 32 Petestep Hull Configuration
Extensive structural design takes place in-house, supported by a partnership with Munich-based Genesis Design Studios. The SAY 32 demonstrates this technical collaboration by achieving speeds near 50 knots while consuming only 1.6 litres of fuel per hour. This performance relies heavily on the patented Petestep hull design, which utilizes specialized deflector steps to mitigate drag and spray. The extreme rigidity of the carbon-fibre hull allows the vessel to execute tight maneuvers with minimal flex.
Mitigating Weight and Consumption
Stripping away excess tonnage creates a compounding positive effect on vessel operation. Reducing overall weight permits the installation of smaller engines, which consequently require less fuel and smaller holding tanks. Despite the focus on shedding weight, the shipyard integrates essential stabilizers to ensure comfort, making the platform suitable for family cruising rather than just raw speed runs. The direct steering characteristics have also driven demand within the superyacht sector, where owners utilize diesel-powered SAY models as primary chase boats.
Measuring the SAY 52 Carbon Footprint
Scaling production to a target of 25 boats annually, Wagner conducted a thorough lifecycle analysis on the company’s largest model, the SAY 52. The data revealed a 50 percent reduction in lifetime CO2 emissions compared to similar vessels, tracking production, 30 years of operation, and final disposal. Equipped with diesel engines, generators, air conditioning, and stabilizers, the SAY 52 weighs exactly eight tonnes. Its six-metre rigid hardtop weighs just 150 kilograms, highlighting the structural capabilities of advanced composite materials.
