b'VESSEL:George MitchellNAVAL ARCHITECT:Gilbert Associates, Inc.FOGHORN FOCUS OPERATOR:Maine State Ferry ServiceTYPE:Passenger and vehicle ferryIn September, Gilbert Associates, Inc. completed the keel-up design of a 207 double ended passenger and vehicle ferry for the Maine State Ferry Service. The vessel design is currently out to bid for construction, which is expected to begin in early 2025. It is designed to operate on a three-mile route across Penobscot Bay from Lincolnville to Isles-boro, Maine, carrying up to 250 passengers and 35 cars.The ferry features diesel-electric hybrid propulsion, con-sisting of 2240 kWh of battery storage capacity onboard as well as two CAT C-18 diesel generators. Shore infrastruc- service speed of 13 knots. The batteries will be supplied by ture upgrades on the Lincolnville side will be completedCorvus and the propulsion integrator is ABB.to add a rapid charging system, which is expected to allow the vessel to operate in fully electric mode in its normalThe hybrid-electric vessel will cut fuel consumption by an operatingprofile,withthedieselgeneratorsservingasestimated 100,000 gallons per year, equivalent to around backup power generation if required. The vessel will fea- 1,100 tons in CO 2emissions. The project contributes to ture a fixed pitch propeller on each end, each turned by athe Maine Clean Transportation Roadmap, which targets 900 kW propulsion motor which gives the vessel a designcarbon neutrality by 2045.Island to the Connecticut mainland year-round. The new designwillbetailoredtomaintaincompatibilitywith existing infrastructure. The ferry will be a conventionally propelled steel vessel capable of transporting the equivalent of 30 vehicles and 150 passengers. In addition to developing the look and feel of the ferry, a propulsion study was done to investigate both conventional diesel and alternative propulsion systems. The team focused on a lifecycle cost approach, which included capital, main-tenance, operating costs, and the weight impacts of alterna-tive propulsion systems. The concept is now complete and work on the preliminary design has begun. The prelimi-NAVAL ARCHITECT:Glosten nary design package will build upon the concept design and OPERATOR:Fishers Island Ferry Districtprovide additional detail for the arrangements, structure, TYPE:Passenger and Vehicle Ferrymajor systems, and outfitting. Noise and vibration charac-teristics and mitigating approaches are being reviewed and Glosten was recently selected to provide the concept, pre- evaluated by Noise Control Engineering (a Glosten subsidi-liminary, and contract design for the next RO-PAX vesselary). Following the preliminary design phase, the team will for the Fishers Island Ferry District. The new vessel will re- proceed to the contract design phase, which will include place the M/V Munnatawket, which has served the islandall necessary documentation with which the operator can since 1978. The ferry is a critical lifeline connecting Fishersengage shipyards for detail design and construction bids.FOGHORN 36'