Twin 105′ Aluminum Catamarans for King County

MV Sally Fox & MV Doc Maynard: High-Speed Water Taxis for King County

All American Marine (AAM) proudly delivers MV Sally Fox & MV Doc Maynard, two 105-foot high-speed aluminum catamarans, to King County’s Marine Division. Designed for efficient passenger-only service, these state-of-the-art water taxis provide fast, fuel-efficient, and reliable transportation between Vashon Island, West Seattle, and downtown Seattle.

Innovative Teknicraft Catamaran Design

Built to USCG Subchapter K standards, MV Sally Fox was the first U.S. passenger vessel delivered under the new 5A Space Performance Guidelines, ensuring structural fire protection while maintaining weight efficiency in high-speed ferries.

Designed by Teknicraft Design Ltd., the 105’ x 33’ aluminum catamarans feature an advanced hull shape optimized through Computational Fluid Dynamics (CFD) analysis. Key design elements include:

• Hydrodynamic wave-piercing hull to reduce drag and enhance passenger comfort
• Twin Cummins QSK-50 Tier III engines (1800 bhp @ 1900 RPM) for a service speed of 28 knots
• Fuel-efficient operation to minimize environmental impact

Enhancing Passenger Experience & Accessibility

MV Sally Fox & MV Doc Maynard were built for passenger comfort, safety, and efficiency, featuring:

• Seating for 250 passengers indoors & 28 outdoor seats on the upper aft deck
• ADA-accessible main deck with designated seating areas for passengers with disabilities
• Staggered-height bicycle storage rack for 26 bicycles
• Non-slip tread decking & UV-stable vinyl-wrapped superstructure for durability and sustainability

Strengthening King County’s Water Taxi Fleet

“These vessels are fuel-efficient, dependable, and cost-effective, providing world-class passenger ferry service,” said Matt Mullett, CEO of AAM. Alongside Spirit of Kingston, which was acquired in 2013, these vessels expand and modernize King County’s fleet, ensuring reliable transit service for Puget Sound commuters.

Advancing Sustainable Public Transportation

Built at AAM’s Bellingham, WA facility, MV Sally Fox & MV Doc Maynard represent the future of high-speed, eco-friendly ferry service, providing fast, comfortable, and efficient water transportation for the Seattle region.