The boat featured is not currently for sale by Boatshed. The boat information and images presented are part of Boatshed’s back catalogue of the 20,000+ boats we have listed in the last 15 years and appear here for general information and guidance purposes about Boatshed and our boat selling systems and services
Mainship 390

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Boat REF#

£0 Sold / Unavailable




Underwater profile

Sleeping berths

1 x diesel 300hp, Yammar 6LP-STE (2001)

Seattle, WA USA - At Our Docks!


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Extra Details

Builder Mainship Corporation
Lying Seattle, WA USA - At Our Docks!
Fuel capacity 300.0 USG Total - 2 Tanks
Water capacity 130.0 USG Total - 2 Tanks
Holding tank capacity 35.0 USG Total - 1 Tanks


Engine 1 x diesel 300hp
Engine make and model Yammar 6LP-STE (2001)
Engine Hours Engine1: 1741
Engine Cooled Indirect
Steering Wheel
Drive Shaft
Fuel consumption (approx) Not Recorded
Cruising speed (approx) 8 knots
Max speed (approx) 12 knots

Cabin heat is supplied by a Webasto diesel-fired forced air heater


Length 39'0"
Beam 14'2"
Draft Min 3'9"
Displacement 22,003.8lbs
Headroom 6'1"
Storage On marina

Electrical Systems

12 volt, 3 batteries charged by: engine, shore power


Construction GRP
Underwater profile Semi-Displacement
Finish Gelcoat finish

Hull design and construction are recognized as being functional and strong. Engine access is excellent through three hatches in the saloon. Since this is a single engine vessel , with bow thruster, it is easy to handle in close quarters.

All gel coat on deck shows minimal cracking for a vessel of this age. This shows that overall fiberglass lay up is heavy and strong.


Total # of berths 6
No. of double berths 2
No. of single berths 2
Cabin(s) 2
Sink 1
Shower 1
Heads 1 heads (Electric)
Stove tick
Oven tick
Sink tick
Fridge tick
Freezer tick
Carpet tick
Drapes tick
Cabin heating tick
Pressurised water system tick
Hot water system tick
Raw water wash tick
Cockpit shower tick
Microwave tick

This is a two stateroom model plus it has a convertible couch in the saloon that makes a queen-sized berth.

The open saloon layout supplies a large working galley with plenty of storage. The large refrigerator / freezer , built in microwave and coffee machine help with more than one person working in galley.

Access to the two forward staterooms is easy through a common companionway which also includes the guest door to the head/shower.

The flybridge includes two bench seats with folding table and of course the double helm seat. There is a full canvas cover for all seating. The aft section of the bridge is open and supplies a great area for deck chairs and table.

There are wide walkways, port and starboard, to access the foredeck.

This design makes for a very comfortable cruising trawler for four people, and additional space as needed for two more.

3 burner propane Stove

Nav Equipment

Compass tick
Radar tick
VHF tick
Chart plotter tick
Autopilot tick
Stereo tick
Navigation lights tick

Raymarine depth sounder /knotmeter at both Helms.
Raymarine 6 inch chart Plotter at lower helm
Raymarine 10 inch color chartplotter at upper helm
Raymarine radar at upper helm
Standard Horizon Matrix AIS/GPS GX2200 VHF at lower helm
Raymarine VHF at upper helm

Deck Gear

Rode tick
Fenders tick
Boathook tick
Swim Platform tick
Swim Ladder tick
Instrument Covers tick
Bow Thruster tick

Electric Lewmar windlass (with remote control)
2 anchors
(Bruce 33 Lb. and Danforth)
100'0" of chain
180'0" of rode
Zodiac dinghy (unknown year)
4hp outboard, Yamaha, Short shaft (unknown year)
The anchor locker has enough space for the spare Danforth anchor and rode.

There are deck switches for the windlass at the bow plus a remote switch at the flybridge helm.

Safety Equipment

Life jackets tick
Horn tick
Swim ladder tick

3 bilge pumps (0 manual / 3 electric)

Broker's Comments

This Mainship 390 has only had one owner, and has always been located in the Pacific Northwest. Regular maintenance has been completed and there have been no major problems with the engine and no hull damage.

The vessel has been run primarily from the flybridge but there are complete electronics at both helm stations.

Strong points for this design are the two staterooms. The master stateroom has a queen centerline berth and the guest stateroom has two twin beds. This design for the guest room is unusual. There is private access to the head and shower from the master and a separate door for guests.

The flybridge is accessed by a curved stair case. You can actually walk up to the bridge with a cup of coffee!

Please review all the 91 pictures plus the 360 degree videos. This is a well kept, comfortable trawler.

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

This Mainship 390 has been personally photographed and viewed by Roger Drill of Boatshed Seattle. Click here for contact details.
The particulars herein are intended to give a fair description of the vessel but are not guaranteed as accurate. They shall not form part of any offer or contract for the sale of the vessel. The prospective purchaser is recommended to independently check the particulars. The vendor is not selling in the course of a business unless otherwise stated. Personal property is excluded from the sale of the vessel unless specifically included in the listing specifications above or in a Purchase Contract. Personal property may be equipment or gear not permanently attached to the vessel including but not limited to: artwork, entertainment equipment, fishing equipment, TV receivers, recreational equipment, kayaks, tools, and personal appliances. Photos that may incidentally depict owners' personal property do not convey that such items are included in the sale of the vessel unless specifically listed herein.

Comments (1)

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Karen Stone
Member Since:
Hi, This boat looks interesting. Wondering if it has any cover for the upper helm?
Where is it located?
Thank you
2018-05-29 19:29:22
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