Northern Sun
LOA: 167' (50.9m)
Beam: 29' 7" (9m)
Draft: 16' 5" (5m)
10 Knots
13 Knots
Location: Phuket Thailand
Year: 1976
Motor Yacht
Motor Yacht
Price: $15,000,000 USD
Additional Specifications For Northern Sun:
LOA: 167' (50.9m)
Beam: 29' 7" (9m)
Max Draft: 16' 5" (5m)
Hull Material: Steel
Hull Config: Full Displacement
Deck Material: Teak
Range At Cruise: 10000
Cruising 10 Knots
Max 13 Knots
Fuel Capacity: 175000 L (46230.11 Gal)
Water Capacity: 65000 L (17171.18 Gal)
Flag: Cook Islands
Location: Phuket, Thailand
Price: $15,000,000 USD
Delivery/Model Year: 1976
Year Built: 1976
Refit Year: 2007
Motor Yacht
Motor Yacht
Engines: 900 HP,Twin, Diesel, Yanmar, 6G-UT,
Staterooms: 6
Sleeps: 12
Heads: 1
Crew Berths: 13
Captain Cabin: No




Materials:Steel with aluminium funnel, sundeck + masts

Hull Form:Full displacement

Deck Fitting/ Rails etc:Stainless steel + teak cap rails

Colours :Blue hull, white superstructure



Length Overall :50.9 meter / 167 feet

Beam :9.0 meter / 29 feet 6 inches

Draft :5.0 meter  / 16 feet 5’ max    4.5M/14.8 ft mean

Tonnage :930 tonnes (displ.) (laden)/715T (light)/GRT 703/ NT211

Fuel Capacity :170 Tonnes

Water Capacity :65 Tonnes



Max :13.0 knots

Cruising :10.5 knots



Engine :2 x Yanmar 6G-UT 900HP

Generator :2 x TRI Power 170KW each + 2 x 300KW Taiyo shaft alternators

Power :440V / 3 Phase / 60 Hz

Stabilizers:Naiad Fixed Fin

Air Conditioning :Completely New Dometic System Fitted 2020

Heating :Reverse cycle airconditioning

Bilge System :Manual

Waste :Taiyo Sewage Treatment Plant + Head Hunter toilet system

Bow Thruster:Kamome CPP TC-200 110KW

Stern Thruster:Tunnel Thruster Model 30 TT125H 110KW

Water Maker :2 x HEM 30-4000 6 Tonnes per day



Radar :Furuno x 2 units

Autopilot :Hakushin Gyro

VHF :Furuno FM 3000 x 2

Other :See Bridge Equipment



Anchor :3 x 680 KG

Bathing Platform :Teak laid

Aft Cockpit :Teak laid flush with salon

Life Saving Equipment :4 x 15 man Solas life rafts / EPIRB / 2 x Sart’s

Fire Extinguishers :Hand held throughout + remote control CO2 in Engine Room + smoke detectors throughout

Searchlight:On Main Mast

Controls:In Bridge with port and stbd wing controls

Tenders:1 x Seat 219 GRP rigid Tender with 174 Steyr inboard diesel +

Bravo One drive Over Hauled 2020 (Solas Approved Rescue Tender)

1 x ACS 6.8M Hammerhead R.I.B. with 164 Steyr inboard diesel and

Alamarin 230 Waterjet drive, New Engine + Completely Rebuilt Tender 2020 (Solas Approved Rescue Tender)

1 x 3.6 Zodiac with 25HP Outboard 2017

Diving Gear:New Dive Locker, with Compressor, Tanks + Equipment 2012



See attached.


ACCOMMODATION:   For 12 persons in 6 cabins + 13 crew   


M/Y “NORTHERN SUN”     -        Single screw /C.P.Prop. Diesel Private Yacht

===================                ==================================


Narasaki Shipyard, Muroran, Hokkaido, Japan  /  Hull No.  S–895                   

Launched March 1976, First registered 3rd July 1976.



Built to/under ‘JG’ (Japanese Government) standard/supervision

Now in RINA Commercial Class Dec 2021



In 2007 She was converted into a Luxury Expedition Charter Yacht

Systems and equipment have been upgraded regardless of cost since Last refit 2021



Fresh Water - 65 Tonnes  

Fuel     -         170 tonnes   



Max. - 13 knots / Economic Cruising - 10.5 knots.



10,000 NM approx. 

@ cruising spd. 10.5 knots with 2 engines + 1 generator

22,000 NM @ 7 knots with 1 engine + generator

Average Daily fuel consumption: 4,200 litres @9.8 knots / day

175 litres / hour with both main engines + 1 generator running



Machinery and Engine Room: 


Main Engines

2 X 900 HP YANMAR Diesel engines Model 6G-UT (original 1976)


* Port engine Ser. No. FGG 0236 / (JG Reg. no. 76228)

Previousmajor overhaul (under JG supervision) – 2002;

Total hours approximately 70,906 March 2021

Completely refitted Nov. 2012 zero hours

March 2021 - 906 hours since last Overhaul in SEP 2017.

Nov 2021 Completely overhauled to zero hours


* Stbd engine Ser. No. FGG 0235 / (JG Reg. no. 76229)

Total hours approximately 70,906 March 2021

Previous major overhaul (under JG supervision) – 2003.

Completely refitted Nov 2012 zero hours

March 2021 - 906 hours since last Overhaul in SEP 2017.

Nov 2021 Completely overhauled to zero hours


Clutching independently (singly or jointly) into single propeller shaft,

with Kamome Controllable Pitch Propellor   (original 1976)

Type CPC-65, Ser. no. CP 2089 Overhauled Nov. 2012


Bowthruster :

110 kW   / Kamome – controllable pitch prop.  (Original 1976)

Type TC-20, Ser. No. T-80 Overhauled Nov. 2012


Sternthruster :

Tunnel thruster - Model 30 TT125H, 110kW, with electro-hydraulic power pack.

(new 2007)  Overhauled 2012 and again in Nov 2021



both Yanmar M/E’s driving shaft alternators, 440v/3-phase/60Hz (original 1976)


2 X Tripower generators Model TPMAA (new 2007), using Cummins engines

model 6TA8.3D, generating 440v/3-phase/60Hz - 170kW, with customized sound shields.


Tri Power ( Stbd ) - Total hours March 2021 13,082 Hrs. In-frame overhauling at: 10,624 Hrs in 19.08.2017.

Nov 2021 in frame overhaul to zero hours


Tri Power ( Port ) - Total hours March 2021 13,092 Hrs. In-frame overhauling at: 10,580 Hrs in 19.08.2017.

Nov 21 In frame overhaul to zero hours


1 Emergency 80kW Generator w/ Cummins GBT 5.9 + Stamford Alternator fitted 2020


Switchboard 440v/3-phase/60Hz - Synchronising panel board for new generators in Engine Control Room



Dometic 576,000 BTU Approx. fitted new in 2020 with 6 randomly selected chiller unites. New Ducting. New Fancoils + New air handlers throughout the vessel.


Water Makers

2 x HEM 30-4000 6 Tonnes per day Water Makers fitted 2020


Oily-Water Separator Model YSF-Q-0.5


New Fixed and Portable fire pumps fitted 2015.

Bench drill, 1 lathe, 1 work bench + vice, 1 grinder




Naiad ‘fixed fin’ stabilizer system - units located outboard of

Laundry (stbd) and Ch. Engineer’s Cabin (port) on Crew Deck.


Steering flat

Original electro-hydraulic steering system (1976)


Shore power multi frequency converter transformer


Fuel Polisher: Two fitted 2015


Bridge:C.P. prop./Bowthruster and Sternthruster controls on main console -

together with Bridge Wing maneuvering stations.

:Hakushin gyro, autopilot and rudder indicator (original 1976) + Digital Interface

fitted 2017

:Radar - Furuno ‘FAR 2137S’ (10 cm) 20” screen/ 30 KW, with

9-ft antenna, 96 mile range

- Furuno ‘FAR 2117 (3 cm) 20 screen/ 12 kW, 6.5-ft antenna

96 mile range

:Electronic Chart System/Plotter - Transas / ECIS 3000

 with TX 97 charts for Asia/Pacifica.

:Satellite Compass - Furuno ‘SC 602’

:Doppler Log - Furuno ‘DS-80’  

:Echo-Sounder - Furuno ‘FE 700’ 

:2 GPS Navigator receivers - Furuno ‘GP 150’

:A.I.S. - Furuno ‘FA 150’  

:Wind Indicator - R M Young 05103

:2 X marine VHF’s - Furuno FM 3000

:1 X Ground-to-Air VHF - Icom ‘IC-A200M (for helicopter ops)

:Int. flags cabinet

:4 x Kenwood portable VHF sets

:New Magnetic Compass John Lilley & Gillie SR4 170mm card (2017)

:Chart table + drawers

:Sanshin search light control

:Naiad stabilizer control panel

:Inventory of paper charts and nautical publications.

:Waeco refrigerator


Ship’s Office/

Radio Room

:GMDSS Radio Set-Up for ‘Area A2’ operation

:X VHF - Furuno ‘FM 8500’ (25W)

:X MF/HF - Furuno ‘FS 1570’ (150W)     

:2 X ‘Sat C’ - Furuno ‘Felcom 15’

:Seatel V. Sat with two separate telephone lines + unlimited broad band data

:GPS recorder Furuno ‘GP150’

:Navtex (paperless) - Furuno ‘NX 700B’

:Ship’s main PC / PD Dell with Cannon 3 in 1 printer/copier/fax



Alleyway:Fire Detection system panel

:Remote Control for Engine Room CO2 Fire Extinguishing System


Other:Ship’s telephone system/PABX

:Fire, Bilge & service pumps (original 1976)

:Additional emergency fire pump/secondary bilge pump for Crew Accom

:Fire hoses, nozzles, etc..

:Side companionways/ Stern passerelle

:Anchor windlass / two bower anchors,

and one spare - located in fwd hold. (all original 1976)

:Mooring capstans aft

:Satellite TV ‘Seatel’

:New TV, Blu Ray Players + Docking Stations + Bose Speakers in all Cabins 2015



:1 x ‘SEAT 219’ fiberglass ‘rigid’ tender  -  (built in SEAT Boat Co., Pattaya, Thailand) with Steyr 174 inboard diesel and ‘Bravo One’ drive. Over hauled 2020 (Solas Approved Rescue Tender)

:1 X ACS 6.8m ‘Hammerhead’ RIB - (built in A.C.S., Subic) 

with Steyr 164 inboard diesel and ‘Alamarin 230 waterjet’ drive.  New Engine +

Completely over hauled Tender in 2020 (Solas Approved Rescue Tender)

:1 x Work Tender Zodiac 3.6M with 25HP 2 stroke outboard (2017)

 :Dive Locker built 2012

 :New dive compressor Bauer Poseidon 250 TE 5.5KW

 :New dive tanks

 :New BCDs + Regulators

 :New fishing rods

 :New I-AQUAS 2020

 :New awake electric surfboard, Kayaks + Paddle Boards

 :New Running Machine, Rowing Machine, Exercise Bike free weights


Expedition M/Y “Northern Sun”


Northern Sun has been transformed from a specially built high latitude ice strengthened fisheries research vessel into a luxurious long range expedition yacht.  She was taken back to bare steel inside and out and completely rebuilt with new lagging, wiring, plumbing, electronics, generators, air-condition, cabinetry, furnishings, bathrooms, galley, cranes, tenders, teak decks, fully faired and painted in Awlgrip.

Her teak laid Sun Deck is completely private above the Bridge.  It boasts a 4 man Jacuzzi, an abundance of sun lounging areas, a bar fridge, ice maker and sink and her deck furniture stores neatly inside the funnel at the rear of the deck.  New sail awnings offer shade from the sun.  A day head was installed in stbd. side of The Mast in 2015.

Easy stairs on the port side lead down to the Bridge Deck which has a beautiful wide Portuguese style teak deck passing in front of the bridge and leading aft port side and stbd to the Boat Deck aft.  Life rafts stow neatly outboard and there are 2 recessed fire hydrants outside the bridge wing doors.  The 2 wing controls are housed in separate boxes which close flush into the bulwark when not in use. 

The Boat Deck is teak laid and has stainless steel safety rails all around.  A 2 tonnes Stromme crane is mounted centrally aft of the funnel and can lower either tender port side or stbd into the water. Again the funnel is cleverly used to house the crane hydraulic pack and radio batteries as well as a new generator dry exhaust stack.

Access to the Bridge is from port and stbd wing doors or from an internal corridor.  The navigation equipment has been sensibly thought out and positioned by her very experienced captain.  A full list of equipment is detailed under bridge equipment.  The windscreens have a negative angle to reduce glare, and two have all clear screens for inclement weather.  The all around visibility is excellent.  An easy bench seat on port side with small coffee table allows guests and owner to enjoy the view whilst cruising.  There is a chart table with drawers on port side and a good sized worktop on the stbd side.  As well as the latest navigation equipment, there is also a flag locker with full set of signal flags. A Waeco drinks fridge is neatly located on the stbd aft wall.

Leading aft from the Bridge on the stbd side, the corridor takes you first to a fully equipped Radio Room and then to a generously sized Captain’s Cabin, equipped with television, telephone, drinks fridge and Ensuite Bathroom.

The Corridor then leads further aft to stairs down to the Main Deck.  At the top of the stairs is a fire control panel, a locker with remote fuel shut off pulls and cables, a PABX telephone control box and 4G Pepwave receiver for internet + 2 Boosters.

At the bottom of the stairs is a Pantry giving a three-way access to the stbd Side Deck, inboard to the Crew Stairway or aft into the Salon.  The Pantry has a U-Line ice maker, American Home fridge, hand basin and lockers.

Concentrating on the exterior, the Forward Working Main Deck is painted non slip white.  There is a duel hydraulic windlass with 2 x 1500 lbs anchors and access hatch to the chain lockers.  A large hydraulically raised hatch gives access to the garage where the crew tender or jet skis can be stowed out of the way using the on deck Bezensoni crane.  A smaller hatch gives crew access to the garage from the deck and from here a separate corridor leads aft to the Crew Mess or forward to the Bosun’s Locker.  There is a separate compartment for the bowthruster hydraulic pack, emergency diesel driven bilge or fire pump and hydraulic windlass power pack.

Back on deck, teak decks lead in front of the Salon to a beautiful forward facing recessed seating area with coffee tables and sun awnings.  This makes an ideal area for evening cocktails or relaxing whilst underway. Moving aft down the port or starboard side decks are two reception doors at mid ships giving access to the salon with well located side boarding ladders mounted flush into the bulwarks.  Fire hydrants and life rings are nicely recessed into the bulwarks and superstructure and there is a hot and cold shower on the stbd. side to rinse off after a swim.

Moving further aft, down the wide Side Decks with beautifully varnished caprails, you reach the Aft Deck Area with fitted seating and large varnished table for al fresco dining.  Either side of the seating, two impressive stairways join to lead down as one, to the teak laid Bathing Platform, making a very practical and attractive transom for stern to mooring.  A hydraulic passerelle stows neatly inside on the stbd side, whilst the hot and cold shower stows away on the port side.

The Main Deck interior has a full length Saloon giving fantastic visibility all around, with three clearly defined areas.  Forward is the Piano Salon with an excellent view ahead.  At mid ships is a plush Lounge Area with pop-up flat screen television and Bose Surround Home Theatre system.  There is a day toilet off to port and a wide corridor leading to the Aft Viewing Salon with panoramic views of the aft deck and beyond.  The floor is finished in a beautiful dark Nara wood and two Barrique wine fridges store your favourite wines.

The Main Deck has two separate stairwells to access the Owners and Guest Cabins.  From the Middle Lounge, a central stairwell leads down and forward to the Dining Room on the port side and Owners Study on the stbd side.  The dining table seats 10 in comfort and is well equipped to stow crockery and glassware.  The Study has an open plan style and has a comfy chair and foot stool for relaxing; with a separate writing desk and chair.

Moving forward on the stbd side, you enter the full-beam, very impressive Owners Cabin with king sized bed, sofa and separate vanity unit.  There are plenty of hanging lockers, a safe, flat screen television and Bose Surround speaker system.  The Ensuite Bathroom is huge, boasting a two person Jacuzzi and separate shower.

Moving aft from the Study, a corridor leads to a good sized Twin Guest Cabin with Ensuite Bathroom.

From the Dining Room, a door leads into a Pantry and further aft into the Galley.  The Pantry has a Fisher & Paykel fridge, U-Line ice maker, Barrique wine fridge, Miele dishwasher and sink.  The Galley is well equipped with Miele oven, steamer, plate warmer, 2 Viking 4-ring hobs and 2 Viking ovens, an industrial extractor fan, a Sub Zero fridge freezer and double sink unit with insinkerator.  There is also a large walk-in fridge and freezer outside the Galley in the Crew Corridor.

Moving further aft, down the Crew Corridor, is the Engine Room Control Room and, further aft, a door leads to the aft Guest Cabins.  These cabins can also be accessed by a Guest Stairwell on the port side near the Aft Viewing Salon.

The Aft Guest Cabins comprise of 4 guest cabins, 2 twin, 2 double, all with ensuite bathrooms.  New televisions, Blu Ray players, Bose speaker and I pod docking stations were fitted in 2015.  There is also a telephone intercom for each cabin.

Much consideration was given to guest and crew circulation to maintain maximum guest privacy.  Crew enter the Lower Deck Crew Mess and Cabins from the Galley Corridor or from the Bosun’s Locker forward.  The Crew Mess is well equipped with large table, Sharp TV, DVD player, Digital Multiplex recorder, Fisher & Paykel fridge, Whirlpool microwave, U-Line ice maker, Miele dishwasher, Furuno VHF, and camera monitor for the 4 security cameras.  Crew Cabins are well appointed with ensuite bathrooms per the layout plan.

The Laundry is aft of the Crew Mess and equipped with 3 Miele W2104 washers, 3 Miele T422C dryers, a Miele D815D roller ironing press and plenty of storage for linen.  Access to the stabilizer fin and hydraulic pack and frequency converter is from the Laundry.

The Engine Room is in superb condition.  The equipment has either been overhauled or renewed.  New equipment includes:  2 “HEM” water makers (6 Tonnes/day each), 6 Dometic air-conditioning compressors with Smart random selector on demand, Head Hunter toilet system, 2 x 170KW Tritex generator, on demand fresh water pumps, air compressor for engine starting system.  The work shop has a lathe, bench drill, grinder, work bench and vice, 2 hot water tanks, plenty of tools and is air-conditioned.  The entire area is a show piece.

A new dive locker was constructed in October 2012 in the port aft Lazarette with the installation of a new dive compressor, racks to stow dive bottles, BCDs and dive equipment.  There is also a new rack to stow fishing rods and reels.

2015 upgrade and improvements.  All aft guest cabins have been rebuilt on a floating fully insulated manner significantly reducing noise levels whilst cruising and refitted with Jim Thomson fabric in all cabins in 2020.  Radio equipment was been upgraded to operate the yacht commercially.  New pipework fitted in engine room.  New stainless steel fuel polishers fitted.  Aircon compressors overhauled.  Water makers overhauled.  Top sides repainted December 2015.  New Gym equipment and toys. 

2019/2020/2021/2022 List of Works Completed 

All hydraulic motors and pumps overhauled – Anchor Windlass, Crane, CPP motor, etc
Refrigerated walk in garbage locker fabricated, lined with stainless steel.
Air Compressors overhauled
Sea Chests dismantled and all pipework cleaned, replaced, inspected as needed.
All E/R valves removed, overhauled and replaced
Fuel tanks opened, inspected and cleaned
Water tanks opened, inspected and cleaned
All bottom paint grit blasted off to bare steel and new Hempel Silicon based antifouling applied under technical supervision – 3 primer and two topcoats
Bow Thruster and Stern Thruster serviced
Main Shaft Aft Bearing tolerances checked
All Anodes replaced
Rudder tank and Aft Voids opened, inspected, cleaned and painted
E/R Ventilation ducting cleaned, and new Fan installed on soft mounts
Anchors and Chain Port and Stbd – 7 shackles each – grit blasted and galvanised
Anchor Lockers cleaned, painted and re-clad with timber
Port Tender new jet unit, new fuel tank, engine fully overhauled, rewired, repainted
Stbd Tender engine service, new teak decks, rewired, restored instrument panel, new soft furnishings
Aft Crane overhauled, wire certified, and strops replaced, all certified to SOLAS for Rescue Tender 
Two new electric Seabobs, one electric surfboard purchased.
Air conditioning ducting replaced in guest areas and bridge
Fan coils replaced in guest areas and bridge
3 new A/C Chillers installed
Galley Ducting replaced and new Fan Coils installed
Generators overhauled in frame 2019/2020
Two new HEM water makers (1.5 tons/hr) installed 2020
Deck crane dismantled and painted 2020
Interior varnish upgraded
New carpets Master Stateroom, Guest aft corridor, Dining Library area, two guest cabins.
New Jim Thompson fabrics fitted in all guest cabins 2020
New Stainless Steel Exhaust Pipes fitted 2020/21 - Generator Exhaust routed via the mast
16 coats varnish applied in July/August/September 2020 to all cap rails and brightwork, new coats applied August/September 2021
New Emergency Generator purchased, and fuel tank installed, installation completed July 2021 with new Emergency switchboard to allow bridge and engine room operation in blackout
All paint work superstructure upgraded and maintained to excellent condition 2021
Hull topsides repainted 2021
Teak decks repaired to excellent condition 2021
ER pipework replaced as necessary, ongoing project (60% replaced to date)
Sea strainer back flush system installed- allows hot water flushing to clean growth inside pipework and strainers.

Full set of new drawings made by Naval Architect
In water survey for Class completed in October 2022
Out of Water survey completed October 2022 in Singapore to finalise Class
Both main engines overhauled to zero hours October 2022
Both Generators overhauled to zero hours October 2022
All sea valves changed to RINA approved valves October 2022
Bearings and seals on Rudder and Shaft renewed October 2022
Bottom pintle bearing on rudder replaced October 2022 (Old one was barely out of tolerance)
Anchor chains calibrated, laid out 
Anchor lockers cleaned painted and wood reapplied 
Bottom sanded, spot primed and two coats of primer and two topcoats applied October 2022
Zinc Anodes replaced 
Carpets changed throughout October 2022
Interior varnished throughout October 2022
New V Sat Dome and ACU October 2022
New Spa pool fitted on top deck October 2022

Thailand Charter License
Application made and accepted, waiting for final signatures, due October 2021
This allows Foreign flagged vessels to operate as Charter vessels in Thai waters.



Northern Sun is ready for a New Owner to take over, add their personal touches, provision the yacht and go worldwide cruising.  She is a very stable lady with long range capabilities.  The yacht has benefitted from her owner’s constant improvements, upgrades and refinements and spent money in the engineering department where other yachts fall flat.  At USD15,000,000, she represents excellent value for money.  Now upgraded to operate commercially and charter out at a weekly rate of USD167,000.

Call Miles Clark to arrange an inspection.



Master Stateroom
Guest Stateroom
Aft deck
Top Deck
Boat Deck
Launching Tender
Fore Deck Seating
Side Deck
Aft Deck
Aft Salon
Main Salon
Games Salon
Dining Room
Master Cabin
Master Bathroom
Double Cabin 2
Twin Cabin 3
Twin Cabin 4
Cabin 5
Cabin 6
Dive Locker
Northern Sun
Northern Sun
Layout Plan