Case Study: All American Marine powers King County’s Sally Fox ferry with Cummins engines

Cummins Power for Washington State Ferry

All American Marine built the MV Sally Fox for King County’s Vashon Island–Seattle ferry route, where the customer needed a modern replacement for two aging 27-year-old boats. The new ferry had to carry 250 passengers and bicycles while meeting USCG Subchapter K requirements and supporting frequent commuter service.

Cummins supplied a pair of QSK50-M Tier 3 main engines for the aluminum catamaran, each rated at 1,800 HP at 1,900 RPM and driving fixed-pitch propellers. The Cummins-powered vessel reaches a 28-knot service speed, and a second boat built to the same design was planned for delivery later in 2015, helping modernize and expand reliable ferry service on the route.

All American Marine

Joe Hudspeth

All American Marine