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Mainship 40 Expedition

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Boat REF# 205462
Sold / Unavailable
LOA 12.19m (40'0")
Year 2009
Construction GRP
Underwater profile semi-displacement
Berths 5
Engine 1 x Diesel 380hp, Yanmar 6LY3-UTP (2009)
Lying Seattle, WA USA - At Our Docks!


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Extra Details

Builder Mainship Yachts
Lying Seattle, WA USA - At Our Docks!
Fuel capacity 1,363.6 ltr (300.0 G) Total - 2 Tanks
Water capacity 590.9 ltr (130.0 G) Total - 1 Tanks
Holding tank capacity 213.6 ltr (47.0 G) Total - 1 Tanks


Engine 1 x Diesel 380hp
Engine make and model Yanmar 6LY3-UTP (2009)
Engine Hours engine1:   875
Engine Cooled Indirect
Steering Wheel
Drive Shaft
Fuel consumption (approx) 15.9 ltr (3.5 G) /hour At Cruising Speed
Cruising speed (approx) 8 knots
Max speed (approx) 15 knots
Engine spares tick

The Yanmar 380 HP diesel engine will move the boat at up to 15 knots or cruise the boat at 8 knots for great fuel economy . With both bow and stern thrusters and hand held wireless remote, handling in close quarters is easy.
The Pro-Mariner 2000 watt Inverter/charger supplies ample 110 volt power for normal use.
The four 8-D batteries with 1155 CCA are less than two years old. Three of 8D's are house batteries and one is the start battery.
An Espar D-5 Diesel forced air furnace supplies heat for year-round use.


LOA 12.19m (40'0")
LWL 11.25m (36'11")
Beam 4.30m (14'1")
Draft Min 1.13m (3'8")
Airdraft 4.88m (16'0")
Displacement 10,886kg (24,004.1lbs)
Headroom 1.98m (6'6")
Storage On marina

Electrical Systems

12 volt, 4 batteries charged by: engine, shore power The charger / inverter is a Trace Voyager 2000 watt with an RC5 remote panel.


Construction GRP
Underwater profile semi-displacement
Finish Gelcoat finish

Total LOA 41'4".

Mainship construction quality is well know in the industry. The fiberglass and gelcoat materials are of the highest quality.

Access to the engine, batteries and other running gear is through three hatches in the salon floor. You can reach all sides of the engine for easy maintenance. There is also ample room for storage.

The cabinetry is made of cherry wood with Corian counter tops in the galley and head.

The large triple opening door to the aft deck is great for summertime entertaining.

Moving through the vessel is easy with minimal steps and a real staircase to the flybridge.


Total # of berths 5
No. of double berths 2
No. of single berths 1
Cabin(s) 3
Handbasin 1
Shower 1
Heads 1 heads (Electric)
Cooker tick
Grill tick
Oven tick
Sink tick
Fridge tick
Freezer tick
Carpet tick
Curtains tick
Cabin heating tick
Pressurised water system tick
Hot water system tick
Raw water wash tick
Cockpit shower tick
Non-Smokers tick
Bar Sink tick
Ice Maker tick
Microwave tick

This vessel was originally designed with two separate single berths in the second stateroom. The owners preferred to have more storage and hanging space. There is still a single berth on the port side. The space is also used as a dressing area including a full length mirror.

The master stateroom has a centerline queen berth with easy access on both port and starboard sides. There are hanging lockers on both sides . There are also storage drawers under the berth. The master berth has a custom innerspring mattress with custom bedding and pillow top.

The salon dinette converts to a double berth and there are two large full length seats on the flybridge that are very comfortable sleepers.

The flybridge has seating for eight plus an aft bridge deck area with sink, BBQ and Ice maker. There is plenty of room for four deck chairs and an installed table. The chairs are included. The fully enclosed bimini top has a great feature. Instead of un-zipping the large clear plastic sections to create ventilation each section has separate U-shaped zip outs that are easy to open and close. The enclosed bridge is large with the plus of the aft deck section being open for summer sun.

3 burner gas cooker

Nav Equipment

Compass tick
Wind tick
Radar tick
VHF DSC radio tick
GPS tick
Chart plotter tick
Autopilot tick
Stereo tick
Navigation lights tick
TV tick
Computer tick
Fish Finder tick

The electronics package is very complete. The lower station has two 8"Garmin chart plotter/GPS units. The owner wanted to able to have the Radar and Plotter simultaneously visible on full size screens. The radar is a Garmin GMR 18HD 4kw and the chart plotter is a model 4208 GPSMap 8"-- The depth sounder is a Garmin GS022 Remote Digital. The autopilot is a Raymarine SPX 10 Smartpilot with hand held remote. Rudder angle indicators are included.
A Raymarine VHF has a second station mic kit and class B AIS transceiver. There is also a Davis Wind Point with Anemometer.
A third Garmin model 4208 10" chart plotter/radar is located on the flybridge plus engine and thruster controls.
There are two 110 volt shorepower inlets on board for convenience. One in the chain locker forward and the second in the aft port corner of the cockpit.
A flatpanel television is located in a hinged box in the salon which opens to the ship's electrical panel. A DVD is included plus a Bose surround-sound system with subwoofer.

Deck Gear

Cockpit cover tick
Warps tick
Fenders tick
Boathook tick
Swim Platform tick
Swim Ladder tick
Instrument Covers tick
Cockpit Enclosure tick
Bimini tick
Stern Thruster tick
Bow Thruster tick

Electric Lewmar windlass (with remote control)
2 anchors
(Bruce and Delta)
60.96m (200'0") of chain


Rod Holders 3 Rod Holders

Safety Equipment

Liferaft tick
Life jackets tick
Horn tick
Boarding ladder tick

2 bilge pumps (0 manual / 2 Electric)

Broker's Comments

The Mainship 40 Expedition is the successor of the Mainship 400 model, with a revised and more comfortable salon and a many other improvements to features and appointments.

This efficient single engine model has both bow and stern thrusters to make handling in close quarters easy. With duel station controls and wireless controls for the thrusters docking is a pleasure.

The vessel has covered walk arounds on both sides and a large covered cockpit. The salon has two comfortable freestanding reclining chairs plus a convertible dinette. The galley is to port and has a stainless steel dual drawer refrigerator freezer. The lower helm station has a double seat that adjusts fore and aft. With dual MFD displays you are able to have a full screen plotter plus the radar active. Moving forward there is the second stateroom that could also be used an an office. The master stateroom has the island queen berth and its own door to the head / shower.

The fully-enclosed flybridge has an amazing amount of seating and storage and an open air aft deck section.

This vessel is truly in new boat condition both inside and out.

These boat details are subject to contract.
Note: Offers on the asking price may be considered.

This Mainship 40 Expedition has been personally photographed and viewed by Roger Drill of Boatshed Seattle. Click here for contact details.
Disclaimer The particulars detailed herein are intended to give a fair description of the vessel but their accuracy cannot be guaranteed. These particulars are not and shall not form part of any offer or contract for the sale of the vessel and are supplied on the understanding that all negotiations shall be through Boatshed, who act as agents for the vendor. The vendor is not selling in the course of a business unless otherwise stated. The prospective purchaser is strongly recommended to check the particulars and where appropriate, at his own expense, to employ qualified agents to carry out surveys, structural and/or mechanical & electrical.

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