Jumbo class vessels are ferries that serve the Washington State Ferry system. They have a length of 440', a beam of 87', a draft of 16', and weigh 3246 tons. They can carry up to 2000 passengers and 206 vehicles at up to 18 knots. The vessels serving the WSF fleet are MV Spokane and MV Walla Walla.

Source: WSDOT web site