Mainship 390 Trawler

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A purposeful looking boat the high bulwarks and heavily flared forward hull sections make the Mainship 390 Trawler instantly recognisable. With a ‘cods head’ hull shaped she carries her maximum beam well forward creating a shoulder with her flared bow creating an easier motion in a sea way whilst repelling much of the spray. A comfortable displacement cruiser she will comfortably cruise at 8kts. The accommodation provides comfortable living for two couples with two double cabins. Her interior design with an open plan saloon using moveable items of furniture was arguably well ahead of its time on the late 90’s.

ARGYLL SUNDOWNER is a nicely presented example of the class which has been well maintained and benefits from recent upgrading. Offered for sale afloat and ready to go her inventory highlights include:

Hull freshly antifouled July 2021

Twin Volvo Penta TAMD 41P marine diesel engines with dual control stations

Bow and Stern thursters

Dolphin 4KVa, 230VAC generator

Victron 230VAC – 12VDC battery chargers

Mastervolt 12VDC – 230VAC invertor

Raymarine E120W and E90W displays showing radar/plotter

Raymarine Dragonfly 7 plotter/CHIRP downvision fishfinder (2018)

Digital Yacht AIS2000 (2020)

New flybridge canvass work fitted in 2017

Inflatable dinghy

Lying on her berth in Largs the Mainship 390 ARGYLL SUNDOWNER is available for viewing strictly by prior appointment.


Hull Construction:

Single piece GRP moulded hull

Traditional hand consolidated laminate using chopped strand and woven glass cloth

GRP formed structural members laminated as part of hull

GRP formed engine beds forming longitudinal stringers as part of hull

Plywood bulkheads glassed to hull

Original white gelcoat finish with blue boot topping

Blue antifouling applied to hull, July 2021

Deck & Superstructure Construction:

GRP moulded deck incorportating raised bulwarks, coachroof and deck house superstructure and self draining cockpit.

GRP moulded flybridge roof.

GRP moulded non-slip texture panels to finish side decks, cockpit and flybridge roof

Original white gelcoat finish.

Keel & Rudder:

Long central keel, terminating forward of propellors.

Twin stainless steel plate rudders


Engine & gearbox:

Twin Volvo Penta TAMD 41P

200HP at 3,800RPM

6 cylinder, turbo charged, intercooled, indirectly cooled.

Volvo Penta hydraulic reversing marine gearbox.

Lower helm station with RPM, Oil Pressure, Coolant Temperature, Volt Meter and fuel tank gauges

Racor fuel filters for both engines

Dual station, dual lever engine controls

HMI exhaust temperature alarm, alarm units at both helm stations

Maintenance & Performance:

Oil and impellors replaced Augusr 2020, approximately 25 hours run since

Recorded engine running hours approximately 1800 hours

Cruising speed 8kts

Max Speed 15kts.


Dolphin 4KVa generator

Sound insulated pod mounted beneath cokpit sole

525 running hours recorded

Propulsion & Steering:

Stainless steel prop shafts

Flexibly mounts packing type sternglands

Rope cutters

Hydraulic, dual station steering system

Emergency tiller


Sidepower bow thruster with dual station controls, mounted in tunnel (2018)

Vetus stern thruster with dual station controls, transom mounted (2019)


Autohelm ST5000+ control head at lower and flybridge helm stations

Raymarine hydraulic drive system with 12VDC pump

Trim Tabs:

Bennett trim tab system

Dual station, rocker switch type controls


Voltage systems:

12VDC onboard power system

230VAC shore power / generator supply

Shore Power:

Dual 32amp shore power connection points

Single extension lead to connect to shore power supply

Dual 230VAC circuits with independent supplys and RCD protection

Voltmeter, Ammeter and polarity indicator for both circuits

Ring main, water heater, battery charger, microwave, coffee maker, kettle and toaster.

Battery Banks:

Engine Batteries – 3x 12VDC

Domestic Batteries – 1x 12VDC

Bow Thruster Batteries - 2x 12VDC

Stern Thurster Batteries – 2x 12VDC


Single engine driven alternator on each engine

Each alternator outputting 12VDC, 60AMP

Battery Charger:

Main Battery Charger – Victron Phoenix 12/50. 230VA-12VDC

Stern Thurster Battery Charger - Victron Blue Smart Charger 12/17. 230VAC – 12VDC. (2020)


Mastervolt Mass 12/1200

12VDC-230VAC sine wave

Battery Monitor:

Mastervolt BATMAN display


ACR remote control searchlight, controls at both helm stations (2018)

12V Auxiluary sockets in saloon and forward cabin


Fresh Water:

Pressurised hot and cold water system.

Mixer taps in galley and heads

Shower head in heads

Deck shower aft

Deck wash system

Bilge Pumps:

Electric bilge pump – 3 pumps all with manual and auto switching



Two diesel tanks

Approximate capacity 1135ltrs

Fresh Water:

Single fresh water tank.

Approximate capacity 490ltrs



Autohelm ST80 Masterview displaying : SOG, wind, depth and coarse heading

Plotter/Radar – E90W display with Raymarine digital radar scanner

Magnetic Compass

Below Decks:

Autohelm ST80 Masterview displaying : SOG, wind, depth and coarse heading

Plotter 1 – Raymarine Dragonfly 7 plotter/CHIRP down vision fishfinder (2018)

Plotter/Radar – Raymarine E120W display with Raymarine digital radar scanner

Magnetic Compass

Communications Equipment:

AIS – Digital Yacht AIS2000 system (2020). Displays on both Raymarine displays

DSC VHF – Simrad RS87 with dual control stations (2018)

Navtex – ICS NAV4 Navtex Plus

Stainless Steel Horns, activated from either helm station (2018)



Corrian worktop

Single large stainless steel sink with mixer tap

Galley Stove – Princess 3 burner and oven gas cooker, chopping board to fit over cooker top.

Microwave Oven – Electrolux Compact 600W

Fridge/Freezer – Large front opening type unit, fridge on top, freezer below, 230VAC / 12VDC.

Coffee Maker




Electric flushing marine toilet

Mixer tap and wash hand basin

Dedicated shower head and shower stall

Heating & Ventilation:

Diesel fired blow air heating system

Thermostatic cabin controller

Outlets in saloon, heads and cabins


LED downlighters throughout accommodation space, bulbs all replaced 2020

Reading lights in way of bunks

Courtesy lighting on steps to fly bridge


Hitachi flat screen TV in saloon

CD/Radio head unit

Speakers for radio in saloon only


Insulated window and portlight coverings, fitting inside windows, preventing excess condensation if living aboard in winter (2020)


Summary of Accommodation:

Two double cabins

Single heads with en-suite access to forward cabin


Helm station

Open plan saloon with moveable furnishings

Accommodation Finish:

Joinery work of teak veneered ply wood with solid teak trims

Corrian worktop in galley

Corrian counter tops in saloon

Mould GRP headlining with inlaid carpet covered panels

Fitted carpet on soles throughout interior

Description of Accommodation from Forward:

Forward Cabin:

Double cabin with en-suite heads access.

Double bunk located centrally forward, with counters at bunk level outboard forward.

Storage units with shelved and hanging lockers aft port and starboard with counter top above.

Drawer storage beneath aft end of bunk.

Opening portlights port and starboard

Opening deck hatch


To starboard side of passageway forward.

Jack’n’Jill access from from passageway or forward cabin.

Inboard facing electric marine toilet mounted outboard forward.

Counter top wrapping around heads with inset wash handbasin aft, vanity locker outboard.

Large top loading locker outboard of heads

Shower stall with folding screen aft, moulded seat in shower stall outboard.

Opening portlight outboard

Opening deck hatch

Port Cabin:

Double cabin with double berth running aft.

Standing room forward of bunk.

Storage locker with shelves outboard forward, counter top.

Shelves on bulkhead above bunk.

Opening portlight outboard

Opening deck hatch

Deck house:

Large open plan space with movable furniture

Galley located to port side forward, L-shaped worktop.

Helm station forward to starboard

Sliding door outboard of helm, providing access to starboard side deck

Counter top running aft of galley to port with flatscreen TV above and storage below, lockers overhead.

Three movable bucket type armchairs with foot rests beneath.

Height adjustable saloon table on mobile base, table top re-veneered with curlew as central feature (2021)

Corrian counter top nav station aft to starboard side of doors to cockpit

Locker below nav station

Central forward window opens

Large locker accessible through floor below helm station

Access to engine space by lifting saloon floor


L-shaped worktop forward to port.

Stainless steel sink mounted forward.

Worktop outboard forward

Gas cooker built into worktop aft with corrian splash back above.

Fridge and microwave built into unit aft.

Locker overhead with coffee maker built in

Selection of drawers and lockers beneath worktop


Forward to starboard

Movable swivelling helm seat

Wooden spoked steering wheel with wooden rim

Dashboard with engine gauges forward

Dual level engine controls outboard of dash

Controls for thruster and trim tabs

Plotter displays mounted forward


Deck Layout:

Moulded bulwarks with walk around side decks

Solid alloy guard rail running around top of bulwark and forming forward pulpit rail

Short GRP bowsprit extending forward with single bow roller built-in

Windlass mounted on plinth aft of bowsprit with chain storing in locker beneath accessible from hatch aft of windlass

Wooden samson post mounted aft of windlass

Stainless steel mooring cleats mount on gunwales forward and midships

Stainless steel samson post on quarter aft

Cockpit aft spanning full beam of boat.

Warp storage lockers built into gunwales on transom.

Lazzarette locker beneath cockpit forward

Access to steering compartment below cockpit aft

Walk-through transom with GRP moulded door.

Bathing platform aft which dinghy stows over on weaver snap davits

GRP moulded steps to access flybridge to starboard of sliding door to wheelhouse

Flybridge layout:

Moulded coaming forward, wrapping around to form helm station

Centrally mounted helm station forward with swivelling helm seat

Stainlesss steel wheel with engine dash forward.

Dual lever engine controls outboard of wheel

Bench seats outboard of helm seat port and starboard

Fixed table with pull out leaves port and starboard

Fixed alloy grab rail wrapping around aft end of flybridge

Alloy grabrail wrapping around steps access with outboard storage bracket mounted on rail.

Alloy mast with antennas, lights and radar scanner mounted on

Canvas Work:

Bimini cover for flybridge (2017)

Zip in forward, side and aft panels for Bimini to create tent

Low level wind screen for guard rail around flybridge

Cover with zip out access panel fitted over access steps

Zip-in panels fitting around cockpit to create full cockpit enclosure

Anchoring & Mooring:

Bower Anchor – Bruce anchor on chain rode

Electric Windlass – Lewmar windlass with controls on foredeck and flybridge

Selection of mooring warps

Selection of fenders


Inflatable dinghy, hard transom, slat floor.

Stowing on bathing platform on weaver snap davits with fixed length stainless steel stays


Hozelock expandable hose (2021)

Boathook x2

Deck Brush x2


General note on safety equipment: Any safety equipment such as liferafts, Epirbs, fire extinguishers and flares etc. are usually personal to the current owner(s) and if being left on-board as part of the sale of a used vessel may require routine servicing, replacement, or changing to meet a new owners specific needs.

Life saving:

Stainless steel liferaft cradle on flybridge (raft out of service)

Seago MOB rescue sling

Gas Alarm

Radar reflector mounted on antenna mast


In this case we are acting as brokers only.

The Owner is not selling in the course of a business. whilst every care has been taken in their preparation , the correctness of these particulars is not guaranteed. The Purchaser is strongly advised to check the particulars and where appropriate at their expense to employ a qualified Marine Surveyor to carry out a survey and/or to have an engine trial conducted which if conducted by us shall not imply any liability for such engine on our part.

This vessel is offered subject to prior sale, price change, or withdrawal without notice.

Contact The Seller

General Information

United Kingdom


Drinking Water Capacity (L)


Length overall (m)
Beam (m)
Draft (m)
Displacement (kg)


Twin Volvo Penta TAMD 41P 200HP at 3,800RPM 6 cylinder, turbo charged, intercooled, indirectly cooled. Volvo Penta hydraulic reversing marine gearbox.
Engine Hours
Fuel capacity (l)

About The Seller

Mark Cameron Yachts

The Braes



United Kingdom

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