Glosten and Bieker Boats have joined forces to bring modern composite hydrofoil technology to the passenger vessel community. This collaboration draws on Bieker Boats’ years of experience designing fast foil-borne boats—including leadership on Oracle Team USA—and Glosten’s design of passenger vessels for public and private clients over the past 50 years.
Ultra-Efficient Passenger Transportation
By combining the proven technologies of ultra-efficient hydrofoils and lightweight carbon fiber hull construction, the Foil Ferry requires less than half the installed power of a typical passenger catamaran, resulting in more than a 50% reduction in energy consumption. It is compatible with a variety of propulsion methods, including batteries and hydrogen for longer-range, emissions-free operation—both of which offer significant operational cost savings and produce zero greenhouse gases.
The safety of passengers and crew is paramount for all ferries. Our design takes proven commercial hydrofoiling ferry technology and incorporates a foil collision energy absorption system designed to dissipate the energy during contact with a submerged object. The system can be quickly reset because our priority is reliability. Comfort is enhanced and transit times are expedited as the vessel flies over waves rather than through them.
Construction & Maintenance
The vessel’s hull is constructed using carbon fiber with foam cores above the waterline. This results in a significant weight savings over the lightest aluminum construction. The struts and foils are constructed of carbon fiber laminates, achieving the same strength and stiffness of high-strength steel at 20% of the weight. These advancements in foil design and manufacturing can be seen in the latest America’s Cup foiling yachts. The aft foil can be manually raised while at the dock for routine inspections and cleaning of the foil and propulsion units. The forward foil assembly can be removed for service without drydocking the boat. Engine maintenance is drastically reduced with half the installed power and consistent engine loading.
For more information, download the marketing sheet.
If commuters rode the Foil Ferry from Seattle to Bremerton instead of the existing diesel fast ferry, the amount of CO2, particulate matter (PM), and NOx emissions produced by the journey would be reduced by 83%, 95%, and 99%, respectively. This assumes that the Foil Ferry will rely on the Bremerton electrical grid, which is continually reducing emissions to achieve net-zero emissions by 2045. The vessel’s quiet propulsion system and lack of wave generation protects marine mammals from underwater radiated noise and provides a comfortable ride. With low drag foils and half the installed power, this ferry’s wake has practically no impact to sensitive shorelines.
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