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Sea Ranch, Jupiter 40 Flybridge Twin Screw Diesel Yacht, Lying Essex

[ Sea Ranch ] Upper Decks ] Main Deck ] Deck Saloon ] Forecabin ] Forward Heads ] Aft Cabin ] Cockpit ] Engines ] [ Specifications ] Comments ]

Sea Ranch 
Upper Decks
Main Deck
Deck Saloon
Forward Heads
Aft Cabin


Sea Ranch is a Jupiter 40, heavy semi-displacement Twin Screw Diesel Yacht, built by Klaas Baess, Denmark in 1969.  She has a GRP hull and timber superstructure. She comes well equipped including radar, chart plotter, auto pilot, heating and tender. 

She had extensive osmosis treatment by the Hayling Yacht company under the supervision of surveyor, Tony Statton-Bevan, in 1998.

Approximate Dimensions

Length Overall (inc davits)  43ft 4ins 13.2m
Length on Deck  39ft 5ins 12m
Beam  12ft 6ins 3.81m
Draft  3ft 9ins 1.15m
Air draft to Radar Scanner 17ft 5.18m
Air draft scanner arch removed   13ft 3.96m
Displacement  12 Tons
Registered Tonnage 18. 12 


Spacious deck saloon with dining area and galley
Owner's cabin, aft with en-suite heads and shower. 
Twin guest cabin with heads in the forepeak 
up to six berths
Inside and outside helms

Deck Equipment


35lbs Sou'Wester Bower anchor on 60m calibrated chain
Danforth kedge anchor

Vetus manual windlass
Whittall Stainless steel telescopic davits 130kg lift each
Boat hook
Ensign / staff
Anchor light
Spray dodgers on upper deck
Tonneau cover for Flybridge
4 x folding chairs

General Equipment


Henry Browne Steering compass / autopilot sensor.
Kent Clear-view rotating screen
2 x windscreen wipers 
Benavent 2-hob cooker with grill and oven (needs servicing)


Paloma PH5LFE Gas hot water heater (provides pressurised hot water to galley and both heads and shower
Electrolux refrigerator (gas / mains/ ships supply)
Gas bottles stowed in draining lockers on Flybridge
Pots, pans and cutlery included
2 x Lavac electric sea toilets

Clock and barometer

Eberspacher thermostatically controlled ducted hot air heating 

Engines and Mechanics

Twin Perkins 6.354 145hp turbo diesels 
Hydraulic gearboxes
Drive to stainless steel shafts through Halyard Aquadrive universal joints and thrust bearings
Twin Separ fuel filters / water separators
Bronze 30bladed propellers
Twin helm positions


Water - TBA
Diesel - TBA

Electrics / Electronics


2 banks of 12 Volt batteries wired to 24 Volts for engine start and general service
2 x Alfatronix 24Vdc to 12V dc convertors

Comprehensive fuse / switch panel
Shore power installation 


Victron Phoenix Energie 24/2000/50 Combi Battery charger / inverter with shore current limiter

CruzPro VAH35 Volts / Amps / Amp-Hour meter

Seafarer Sea Scan III CRT Radar

Garmin Map 205 Chart plotter 
Garmin GPS 45 Hand held GPS with mounting bracket
Cetrek electronic compass
Cetrek speed indicator
Cetrek Depth sounder


Motorola GSM International 2000 mobile phone

Ocean Star 240D VHF radio telephone

Sharp Mate Autopilot

Blaupunkt Broadcast radio receiver / Cassette player

Navigation lights

Interior lights

 Safety Gear


Life belt
Folding Boarding ladder


Avon 6-man Life raft - needs service
Fire extinguishers x 2
Fire blanket


Engine driven bilge pump
Manual bilge pump
Automatic Electric bilge pump
Vetus gas detector

Shore Gear


2.4m Valiant Rib
Mercury 6hp outboard motor
Launching Trailer for rib

[ Sea Ranch ] Upper Decks ] Main Deck ] Deck Saloon ] Forecabin ] Forward Heads ] Aft Cabin ] Cockpit ] Engines ] [ Specifications ] Comments ]
For further details or to arrange to view, please contact Adrian  Espin at: - Astonbury Marine Services 
19 Colne Road, Brightlingsea, Essex, CO7 0DL  Tel: 01206 305 996  or +44 1206 305 996   

or email to:

In this case we are acting as Brokers only. The Vendor 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 particulars are intended only as a guide and they do not constitute a term of any contract. A prospective buyer is strongly advised to check the particulars and, where appropriate, to have the vessel fully surveyed and inspected, sea trialled and opened up.  All Content is copyright - all rights reserved.