Mariner Seville 35 Sedan (Helmsman Trawlers Predecessor)

This Mariner Seville is equipped with a Cummins QSB5.9 425 hp diesel engine with ~2500 hours and trim tabs.

A Lewmar 185TT 8HP bow thruster (equivalent to SidePower SE100) is installed for close quarters handling.

The house bank consists of 6 x Lifeline GPL-4CT AGM batteries (660 AH @ 12 Volts). Separate engine start battery (Full Throttle FT1100 31ST ) & generator start battery (Interstate 24F AGM). The house batteries and generator start battery were replaced in 2025.

Battery charging is provided by a Magnum MagnaSine inverter charger, engine alternator, and solar. When plugged into shore power, the vessel is protected by a Charles 3.6 kVA ISO G2 isolation transformer which is installed in the engine room.

12 volt battery, 110 volt generator, 110 shore power voltage, 8 batteries charged by: engine, solar panels, shore power, generator

Length overall for moorage purposes is 38 ft.

Heavy hand-laid fiberglass hull construction. Vinylester resins used in the outer layers to help prevent blistering. Integral grid structure is designed to provide a very sturdy hull with little flexing.

Hull is Flag Blue Awlgrip paint, superstructure is white gelcoat, nonskid is light gray gelcoat.

Deck hardware is sturdy and high-quality stainless steel.

FRP fuel and holding tanks. Stainless steel water tanks.

Waterline Boats / Boatshed does not independently verify capacities and measures, which are reported from seller-provided information and/or literature.

This Mariner 35 Sedan can be boarded from the swim platform through a hinged transom door or by stepping over the bulwarks onto the covered side decks which run from the cockpit to the foredeck on the port and starboard side.

The cockpit is covered and can be fully enclosed with a cockpit enclosure with sliding polycarbonate windows.

A sliding companionway door opens to provide access from the cockpit to the salon and the interior of the vessel. The salon is laid out with an L-shaped settee to port with seating for four. The settee is also convertible to a double berth for accommodating guests. Opposite the settee is a seating area which also converts to a single berth.

The galley is L-shaped with granite countertops and is located just forward of the settee. The galley has good storage above and below the countertop. Installed appliances consist of a 3-burner Eno propane cooktop, a Farberware microwave / convection oven / air fryer, and an Isotherm fridge / freezer combo. A very nice pull out bar with glass and bottle storage is built into the cabinet beneath the helm seat opposite the galley.

The helm station is opposite the galley to starboard and consists of a traditional spoked helm, bench type helm seat, and a console equipped with navigation electronics, controls, and gauges and displays for systems monitoring. The visibility from the helm station is excellent all around due to the single level design of the sedan. A sliding door at the helm station provides access from the helm to the side deck or foredeck.

The master cabin is a forward cabin with a queen sized berth accessible from the port and starboard sides. Storage consists of drawers beneath the berth, a hanging locker, and cabinets and shelves. The cabin features separate ensuite head and shower compartments with the head to starboard and the shower to port.

Access to the flybridge is up a spiral staircase and through a hatch from the cockpit. The flybridge is configured with an open aft deck with seating forward. Two pedestal seats are positioned at the centerline helm. There is additional seating for companions in the an L-shaped seating area with storage below. A bimini covers the flybridge seating area. A radar mast on the flybridge deck hinges back to reduce height when overhead clearance is limited.

A Wallas DT 30 diesel heater provides interior heating, and a FCF12,000 reverse-cycle unit provides heating and cooling. Numerous sliding windows, portlights, and an overhead hatch provide passive ventilation.

3 burner gas cooker/stove