Jumbo Mark-II-class ferry

The Jumbo Mark II-class ferries are a series of ferries built for Washington State Ferries (WSF) between 1997 and 1999, at Todd Pacific Shipyards in Seattle. Each ferry can carry up to 2,500 passengers and 202 vehicles, making them the largest ferries in the fleet, and the second longest double-ended ferries in the world.^[1] They all have full galley service and a "quiet room" upstairs.

MV Wenatchee passing Duwamish Head
Class overview
Builders	Todd Pacific Shipyards, Seattle, Washington
Operators	Washington State Ferries
Preceded by	Jumbo class
Built	1997–1999
In service	1997–present
Completed	3
Active	2
Laid up	1
General characteristics
Type	Auto/passenger ferry
Tonnage	4,936 tons[citation needed]
Displacement	6,184 long tons (6,283 t)
Length	460 ft 2 in (140.3 m)
Beam	90 ft (27.4 m)
Draft	17 ft 3 in (5.3 m)
Decks	5 (2 vehicle decks, passenger deck, sun deck, nav bridge deck)
Deck clearance	15 ft 6 in (4.7 m)
Installed power	16,000 hp (11,931.2 kW) total from four EMD 710 V-16 diesel engines
Propulsion	Diesel–electric
Speed	18 knots (33 km/h; 21 mph) (service, using two engines) 25 knots (46 km/h; 29 mph) (maximum, using four engines)
Capacity	2,499 passengers 202 vehicles (max 60 tall vehicles)

Ferries in this class include:

• Puyallup
• Tacoma
• Wenatchee

In 2018, WSF announced plans to convert the Jumbo Mark II-class to battery electric propulsion by switching two of the four engines in each ferry with batteries.^[2] Funding for the program was earmarked the following year, with the Wenatchee planned to be the first ferry to undergo conversion.^[3] The $150 million contract was awarded to Vigor Shipyards in August 2023; Wenatchee is planned to be taken out of service for a year beginning in September 2023.^[4]

References

1. The New Giants: The Jumbo Mark II Class, evergreenfleet.com
2. Brauchman, Michelle (May 4, 2018). "Washington State Ferries plans to convert its biggest vessels to electric power". The Seattle Times. Retrieved August 16, 2023.
3. Stiffler, Lisa (September 21, 2019). "How Washington state plans to create the world's largest hybrid-powered, auto-carrying ferries". GeekWire. Retrieved August 16, 2023.
4. Cornfield, Jerry (August 16, 2023). "Washington awards $150M contract to convert ferries to hybrid-electric power". Kitsap Sun. Retrieved August 16, 2023.

External links

• Washington State Ferries class information