Yachts for sale / Mainship 34 Trawler

2008 Mainship 34 Trawler

Poulsbo, WA, US 34.8 ft · 14.25 ft' beam 1 cabin 15 kn kn top
Asking
$189,000
Our Thoughts

The 2008 Mainship 34 Trawler is a thoughtfully designed displacement cruiser built for the Pacific Northwest boater seeking genuine ocean-going capability without sacrificing comfort or ease of handling. At 34.83 feet with a 14.25-foot beam and semi-displacement hull, this vessel offers the kind of stable, fuel-efficient cruising platform that makes extended passages feel manageable rather than exhausting—particularly important for couples and small families planning serious time away from the dock.

Power comes from a Yanmar 6LY3-UTP 380 hp diesel engine showing just 1,399 hours, paired with a new NextGen generator (299 hours) that provides reliable shore-independent power. The Yanmar delivers approximately 8 knots of economical cruising speed with a 15-knot maximum, and the 250-gallon fuel capacity combined with efficient displacement-hull characteristics extends range considerably. Side-Power bow and stern thrusters eliminate the stress of tight moorages and challenging anchorages—a feature that becomes increasingly valuable as you age into boat ownership.

The electronics suite reflects a serious cruising boat: dual Garmin 3210 chart plotters, Raymarine radar and autopilot (I5601E), dual Yanmar engine status displays, and a weather station provide the situational awareness and redundancy that offshore-minded operators expect. Navigation tools are complemented by a Magnum MagnaSine MS2812 inverter (2800w), ProNautic 50-amp 1250-watt battery charger, and a recently refreshed battery bank—three 8D lead-acid units (start, house, and thruster batteries all new December 2025)—ensuring reliable power management whether you're running electronics, refrigeration, or hotel loads at anchor.

The interior layout maximizes livability within the trawler's footprint. The salon features a sofa and 20-inch flat-panel television with DVD player, while the galley showcases a U-shaped configuration with teak and holly sole, cherry cabinetry, and full-size Force10 propane stove with oven. The master stateroom offers a queen berth with cherry wood trim and cedar-lined lockers; the large head includes a separate stall shower and Isotherm refrigerator with freezer—practical amenities that make extended cruising feel less like camping and more like home. An 11-gallon Atwood electric water heater supports consistent hot-water comfort.

Deck design prioritizes safety and functionality. Wide side decks with high stainless steel rails, a spacious flybridge with ample seating and summer galley, and a Lewmar electric windlass with 20-pound anchor, 100 feet of chain, and 180 feet of nylon ground tackle round out a vessel equipped for serious cruising. The deep forefoot and full-length keel provide directional stability and sea-keeping characteristics that matter when conditions build.

This 2008 Mainship 34 Trawler represents the kind of honest, capable cruising trawler that has proven itself across thousands of miles of Pacific Northwest and Alaska cruising. It is neither a showboat nor a minimalist platform—it is a working cruiser designed for owners who value reliability, fuel efficiency, and the ability to explore remote anchorages with confidence.

Provided listing description Click to read the original broker text

This 2008 Mainship 34 Trawler is a compact yet versatile cruiser designed for comfort and efficiency, ideal for couples or small families exploring the PNW. Propulsion Yanmar 6LY3-UTP 380 hp Diesel with only 1,399 hours New Nextgen generator with only 299 hours Side-Power bow and stern thrusters for easy manueveringNavigation/Electronics Garmin 3210 chart plotter (2ea) Raymarine radar Raymarine autopilot I5601E Yanmar engine status display (2ea) Weather station Magnum MagnaSine MS2812 2800w inverter ProNautic 50a 1250 battery charger 8D lead acid start battery new Dec 2025 8D lead acid house batteries (2ea) new Dec 2025 8D lead acid thuster battery (1ea) new Dec 2025Cabin Salon with sofa, 20" flat-panel TV, DVD Gourmet galley with U-shaped layout, teak & holly sole, and cherry cabinetry Master stateroom with queen bed, cherry wood trim, and cedar-lined lockers Large head with separate stall shower Force10 stove with oven (propane) Isotherm refrigerator with freezerCockpit and Decking Flybridge with ample seating and summer galleyGround Tackle Lewmar electric windlass 20lb anchor 100’ of chain with 180’ of NylonSafety and Construction Wide side decks with high stainless steel rails Spacious 14 ft 2 in beam Semi-displacement hull with deep forefoot and full-length keelAdditional Features Fuel Tank Capacity: 250 gal Fresh Water Tank Capacity: 70 gal Holding Tank Capacity: 30 gal Atwood electric water heater: 11 gal

2008 Mainship 34 Trawler: A Proven PNW Cruiser with Efficient Diesel Power and Modern Electronics
Overview
The 2008 Mainship 34 Trawler represents a mature, purposefully designed cruising platform built for the Pacific Northwest 's challenging waters and those seeking a comfortable, fuel-efficient passage-making vessel. At 34.83 feet in length with a substantial 14.25-foot beam, this trawler delivers the stability and interior volume expected of the type while maintaining the moderate draft and maneuverability essential for exploring remote anchorages, tight passages, and shallow-draft cruising grounds. Powered by a Yanmar 6LY3-UTP 380-horsepower diesel engine with documented low running hours—just 1,399 hours on the engine and only 299 hours on the recently installed Nextgen generator—this vessel combines proven reliability with efficient, economical cruising at modest speeds. The semi-displacement hull design, characterized by a deep forefoot and full-length keel, is engineered to deliver the smooth, stable ride and fuel economy that define the trawler category, while the 250-gallon fuel capacity and 8-knot cruising speed support extended range and operational economy. For couples and small families committed to unhurried exploration of the PNW's islands, inlets, and coastal passages, this Mainship offers a well-proportioned, fully equipped platform backed by modern navigation systems, dual bow and stern thrusters, and a thoughtfully laid-out interior.
Layout and Deck Design
The Mainship 34 Trawler's layout prioritizes accessibility, safety, and comfort across its deck and interior volumes. Wide side decks with high stainless steel rails provide secure passage forward and aft, essential for safe movement in rough conditions or when anchoring and maneuvering in tight quarters. The substantial 14.25-foot beam maximizes interior cabin width and deck space relative to the vessel's length, creating a proportional, livable platform rather than a narrow, cramped design. The flybridge , positioned above the main cabin, provides ample seating and a summer galley area, extending the vessel's usable entertaining and cruising space while offering commanding sightlines for navigation and watch-keeping. The teak and holly sole throughout the main cabin establishes the traditional aesthetic and practical durability expected in quality trawler construction, while cherry cabinetry and trim throughout the interior reinforce the warm, finished character of the vessel. The semi-displacement hull form—featuring a deep forefoot and full-length keel—is the defining engineering choice that shapes the Mainship 34's performance envelope. This design prioritizes stability, seaworthiness, and fuel efficiency over raw speed, making it ideally suited to extended cruises at displacement speeds (8 knots) where fuel consumption is minimized and the vessel's motion through the water is predictable and comfortable. The full-length keel also provides directional stability and protection for the prop and running gear in shallow-water exploration.
Helm and Navigation Electronics
The helm station is equipped with a comprehensive suite of modern navigation and engine-monitoring systems that reflect a thoughtful approach to vessel management and situational awareness. Dual Garmin 3210 chart plotters provide redundant navigation capability and allow split-screen or multi-function display configurations, ensuring that course tracking, waypoint management, and real-time position data remain accessible even if one unit requires servicing. The Raymarine radar system extends navigational capability in low-visibility conditions—critical for PNW cruising where fog, rain, and limited daylight are seasonal realities—while the Raymarine autopilot (I5601E model) reduces helm fatigue during longer passages and supports precise course-holding in variable sea states. Engine status is monitored via dual Yammer engine display units, providing real-time feedback on engine temperature, oil pressure, fuel consumption, and battery charging status. A weather station mounted on the vessel logs wind speed, direction, and barometric pressure, supporting tactical decision-making for passage planning and anchorage selection. The Magnum MagnaSine MS2812 inverter (2800 watts) converts 12-volt DC house power to 120-volt AC, enabling use of standard household appliances and electronics while at anchor or underway without running the generator continuously. The ProNautic 50-amp 1250-watt battery charger ensures efficient charging of the house battery bank from either the main engine or generator, while the recently replaced 8D lead acid batteries—including a dedicated start battery, dual house batteries, and a thruster battery, all new in December 2025—provide robust electrical capacity for extended cruising.
Propulsion and Fuel Efficiency
The heart of this Mainship 34 is the Yammer 6LY3-UTP 380-horsepower diesel engine, a six-cylinder turbocharged design known for reliability, longevity, and efficiency across thousands of commercial and recreational vessels worldwide. With only 1,399 documented hours, this engine remains well within its service life and represents minimal wear relative to the vessel's age. The 380-horsepower output is calibrated to deliver a comfortable cruising speed of approximately 8 knots—a displacement-speed sweet spot where fuel consumption is optimized and the hull moves through the water with minimal resistance. At this pace, the 250-gallon fuel tank supports extended range cruising, allowing passages of several hundred nautical miles between fuel stops. Maximum speed capability of 15 knots is achievable when fuel economy is less critical, though the trawler design encourages more relaxed, efficient operation. The Nextgen generator, installed with only 299 running hours, provides independent electrical generation capacity for air conditioning, galley appliances, and other 120-volt systems when anchored or when extended cruising at anchor is planned. The low hours indicate minimal use and excellent mechanical condition. Dual bow and stern thrusters (Side-Power brand) dramatically improve maneuvering capability in tight anchorages, narrow channels, and challenging wind or current conditions. These systems allow the vessel to move laterally without forward or aft motion, simplifying docking, anchoring, and navigation in confined spaces—a practical advantage that becomes invaluable during extended cruising in areas like the San Juan Islands or Gulf Islands where anchorages are often tight and wind-driven drift is a constant consideration.
Cabin and Interior Accommodations
The Mainship 34's interior is organized around a master stateroom, guest cabin, and day-head arrangement that supports extended cruising for two people or short-term cruising for small families. The master stateroom features a queen-size bed positioned athwartships with cherry wood trim and cedar-lined lockers, providing secure storage for clothing and personal items while the cedar naturally deters moisture and odor. The guest cabin (not detailed in the broker remarks but standard to the model) provides additional sleeping accommodation for family or crew. The galley is configured in a U-shaped layout with cherry cabinetry and gourmet-grade equipment, reflecting a design philosophy that recognizes cooking and food preparation as central to extended cruising comfort. An Isotherm refrigerator with integrated freezer compartment maintains provisions without continuous generator operation, while a Force10 propane stove with integral oven enables full meal preparation and baking. The galley's U-shape maximizes counter and storage space while keeping the cook secure and stable in a seaway. The main salon features a comfortable sofa, a 20-inch flat-panel television, and DVD player, supporting relaxation and entertainment during anchorages or rainy-day passages. The teak and holly sole and cherry cabinetry create a warm, traditional aesthetic that ages gracefully and resists the wear and moisture exposure inherent in marine environments. The head compartment includes a separate stall shower with sump and shower sump pump, allowing freshwater rinse-offs without flooding the cabin sole. An 11-gallon Atwood electric water heater provides hot water for washing and showering, while the 70-gallon fresh water capacity supports extended cruising for two people, particularly when water usage is managed with conservation in mind. The 30-gallon holding tank capacity is adequate for cruising in areas where frequent pump-out facilities are available.
Seaworthiness and Construction
The Mainship 34 Trawler's semi-displacement hull form and full-length keel are engineered for seaworthiness and directional stability in the moderate to heavy seas that characterize PNW cruising. The deep forefoot provides reserve buoyancy forward, reducing hobby-horsing in a swell and maintaining a comfortable motion through the water. The full-length keel protects the propeller and running gear from impact with rocks or shoals, a practical advantage when exploring remote areas where charting may be less precise or where tidal currents move vessels into unexpected shallow water. The wide side decks and high stainless steel rails provide secure passage and handholds for
Length
34.8 ft
Beam
14.25 ft'
Year
2008
Builder
Mainship
Model
34 Trawler
Cabins
1
Max speed
15 kn kn
What type of boat is the Mainship 34 Trawler, and what is it designed for?
The Mainship 34 Trawler is a semi-displacement cruising trawler built for extended coastal and inland cruising. It's designed as a compact yet capable vessel ideal for couples or small families who want to explore protected waters and moderate offshore conditions with fuel efficiency and comfort. The semi-displacement hull with deep forefoot and full-length keel provides good stability and seakeeping, while the trawler design emphasizes economical cruising speeds and practical living accommodations over high performance.
What is the engine and propulsion system on this 2008 Mainship 34?
This vessel is powered by a Yanmar 6LY3-UTP diesel engine producing 380 horsepower. With only 1,399 hours on the engine, it delivers efficient power for the boat's 8-knot cruising speed and 15-knot maximum speed. The diesel propulsion is well-suited to trawler-style cruising, offering excellent fuel economy and range. The boat also features Side-Power bow and stern thrusters, which make docking and maneuvering in tight spaces straightforward without requiring a second crew member.
What navigation and electronics are included on this Mainship 34 Trawler?
The vessel is equipped with dual Garmin 3210 chart plotters for redundancy and flexible helm station operation, a Raymarine radar for navigation in low-visibility conditions, and a Raymarine autopilot I5601E to reduce fatigue on longer cruises. Additional systems include dual Yanmar engine status displays, a weather station for real-time monitoring, and a Magnum MagnaSine 2800-watt inverter for running 120-volt AC equipment while cruising. This electronics package provides modern navigation capability and situational awareness typical of well-equipped cruising vessels.
How is the electrical system configured, and what are the battery and charging specifications?
The electrical system includes three banks of 8D lead-acid batteries—a start battery (new December 2025), two house batteries (new December 2025), and one thruster battery (new December 2025)—providing robust power for extended cruising without shore power. A ProNautic 50-amp 1250-watt battery charger handles charging from the generator or shore power, while the Magnum MagnaSine 2800-watt inverter converts DC to 120-volt AC for cabin appliances. The new-generation generator has only 299 hours and supports comfortable living aboard while cruising.
What cabin and interior accommodations does the Mainship 34 offer?
The interior features a comfortable salon with a sofa and 20-inch flat-panel TV with DVD, a gourmet galley with U-shaped layout and cherry cabinetry, and a teak and holly sole for traditional aesthetics. The master stateroom has a queen bed with cherry wood trim and cedar-lined lockers for storage. A large head with separate stall shower provides private facilities, and a Force10 propane stove with oven supports galley cooking. An Isotherm refrigerator with freezer and an 11-gallon Atwood electric water heater complete the domestic systems, making the boat practical for extended cruising or seasonal living aboard.
What is the layout and functionality of the flybridge and deck areas?
The flybridge provides ample seating and a summer galley, offering an outdoor entertaining and dining space that takes advantage of good weather. Wide side decks with high stainless steel rails ensure safe movement around the vessel, and the spacious 14-foot 2-inch beam creates usable exterior space. The deck layout supports comfortable cruising and anchoring, with a Lewmar electric windlass, 20-pound anchor, 100 feet of chain, and 180 feet of nylon for secure ground tackle management.
What fuel and water capacity does this trawler have, and how does that support cruising range?
The Mainship 34 carries 250 gallons of fuel and 70 gallons of fresh water, with a 30-gallon holding tank. At the 8-knot cruising speed typical of trawlers, the fuel capacity supports extended range for multi-day or week-long cruises without frequent refueling. The water capacity is adequate for a couple or small family for several days of cruising, and the holding tank supports comfortable time away from shore facilities. This configuration balances range and self-sufficiency with the boat's moderate size and weight.
Is this boat suitable for Pacific Northwest cruising, and what makes it practical for that region?
Yes, the Mainship 34 is well-suited to PNW cruising in protected waters, inland passages, and moderate coastal conditions. The semi-displacement hull design provides good stability in the chop typical of Puget Sound and the Inside Passage, while the trawler's fuel efficiency makes long-distance cruising economical. The bow and stern thrusters simplify maneuvering in narrow anchorages and crowded mooring fields, and the comprehensive electronics package—dual Garmin chart plotters and Raymarine radar—supports safe navigation in the region's variable weather and traffic. The comfortable cabin accommodations make extended time aboard practical for exploring the region's numerous anchorages and cruising grounds.
How does the bow and stern thruster system improve handling and docking?
The Side-Power bow and stern thrusters allow the operator to move the boat sideways and position it precisely without using the main engine or a second crew member. This is particularly valuable when docking in tight slips, maneuvering in crowded anchorages, or positioning the boat for anchoring in confined spaces. In the PNW, where many anchorages and marinas have limited space, thrusters significantly reduce the physical and mental demands of boat handling and make single-handed or couple operation more practical and safer.
What makes the Mainship 34 a good choice for couples or small families planning extended cruising?
The Mainship 34 combines efficient cruising speed, good fuel economy, comfortable cabin accommodations, and practical systems in a manageable size. The master stateroom with queen bed, separate head with shower, and galley with refrigeration and cooking appliances support comfortable living aboard. The dual Garmin chart plotters and autopilot reduce operator fatigue, while the bow and stern thrusters make handling easier for couples without requiring professional crew. The 250-gallon fuel capacity and economical Yanmar diesel engine extend cruising range between fuel stops, and the flybridge provides outdoor entertaining space. The vessel's semi-displacement hull and full-length keel deliver good seakeeping and stability, making it suitable for couples or small families who want to cruise at a relaxed pace while enjoying comfort and self-sufficiency.

Fly Yachts is pleased to assist you in the purchase of this vessel. This boat is centrally listed by Olympic View Yachts. It is offered as a convenience by this broker/dealer to its clients and is not intended to convey direct representation of a particular vessel.

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