ocean 71 sailboat

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The Ocean 71 Sailboat Specs & Key Performance Indicators

The Ocean 71, a centre-cockpit staysail ketch, was designed by EG Van de Stadt and built in the UK by Southern Ocean Shipyard Ltd.

Published Specification for the Ocean 71

• Underwater Profile:  Fin keel & skeg-hung rudder
• Hull Material:  GRP (Fibreglass)
• Length Overall:  71'0" (21.6m)
• Waterline Length:  59'4" (18.1m)
• Beam:  17'5" (5.3m)
• Draft:  8'3" (2.5m)
• Rig Type:  Staysail ketch
• Displacement:  75,600lb (34,020kg)
• Designer:  EG Van de Stadt
• Builder:  Southern Ocean Shipyard (UK)
• Year First Built:  1970
• Number Built:  20+

Published Design Ratios for the Ocean 71

Sail Area/Displacement Rati o:  28.0

Ballast/Displacement Ratio:  27.3

Displacement/Length Ratio:  16

Comfort Ratio:  41.4

Capsize Screening Formula:   1.7

Read more about these Key Performance Indicators...

Summary Analysis of the Design Ratios for the  Ocean 71

1. A Sail Area/Displacement Ratio of 28.0 suggests that, in the right hands, the Ocean 71 will have enough performance to leave most other sailboats of similar waterline length well astern. 

2. A Ballast/Displacement Ratio of 27.3 means that a sailboat like the Ocean 71 (which doesn't have its ballast concentrated in a bulb at the foot of a deep keel), is likely to benefit from being reefed early to keep her sailing upright in a moderate breeze.

3. A Displacement/Length Ratio of 161, tells us the Ocean 71 is clearly a light displacement sailboat. If she's loaded with too much heavy cruising gear her performance will suffer to a degree.

4. Ted Brewer's Comfort Ratio of 41.4 suggests that crew comfort of an Ocean 71 in a seaway is similar to what you would associate with the motion of a heavy bluewater cruising boat. Pitching and rolling will be well damped - your cup of coffee on the salon table stands a reasonable chance of staying there in most conditions.

5. The Capsize Screening Formula (CSF) of 1.7 tells us that an Ocean 71 would be a safer choice of sailboat for an ocean passage than one with a CSF of more than 2.0. 

Ocean 71 Sailboat: A Bluewater Cruiser with Style and Speed

If you are looking for a sailing boat that can take you to any corner of the world with comfort and performance, you might want to consider the Ocean 71 sailboat. This yacht is a classic design by the renowned Dutch naval architect E. G. Van de Stadt, who also created the legendary Ocean 60 and Ocean 80 models.

The Ocean 71 was built by Southern Ocean Shipyard in England from 1970 to 1982, and only 16 units were produced. Here are some of the features that make this boat a great choice for recreational sailors who want to explore the oceans.

Overview The Ocean 71 is a ketch-rigged monohull with a length of 21.6 meters (70 feet 11 inches) and a beam of 5.4 meters (17 feet 9 inches). It has a displacement of 40 tons and a draft of 2.7 meters (8 feet 10 inches). It can carry up to 2,000 liters (528 gallons) of water and 1,500 liters (396 gallons) of fuel. It has a spacious cockpit with twin wheels and a large aft deck with a dinghy davit. The hull is made of fiberglass with a balsa core, and the deck is teak-laid.

Accommodation The Ocean 71 has a generous interior layout that can accommodate up to 10 guests in five cabins, plus two crew members in a separate cabin forward. The owner's cabin is located aft, with a double berth, a sofa, a desk, a wardrobe and an ensuite head with shower. There are two guest cabins on each side of the saloon, each with twin berths and a shared head with shower. The saloon has a U-shaped settee and a large dining table on the port side, and a navigation station and a bar on the starboard side. The galley is located forward of the saloon, on the port side, and is equipped with a four-burner stove, an oven, a fridge, a freezer and ample storage space. The crew cabin has two single berths and an ensuite head with shower.

Hull and Deck The Ocean 71 has a sleek and elegant hull shape that gives it excellent sailing performance and stability. It has a moderate freeboard and a low profile that reduces windage and drag. The deck is wide and uncluttered, with plenty of room for sunbathing, relaxing or working on sails. The cockpit is well-protected by a sprayhood and a bimini, and has comfortable seating for the helmsman and the guests. The cockpit also has an integrated table for al fresco dining or drinks. The aft deck has a large locker for storing sails, ropes or other equipment, as well as a hydraulic davit for launching or retrieving the dinghy.

Mast and Rigging The Ocean 71 has a split rig that consists of two masts: a main mast that is keel-stepped and carries the mainsail and the mizzen staysail, and a mizzen mast that is deck-stepped and carries the mizzen sail and the spinnaker. The rig is designed to be easy to handle by a small crew or even single-handedly, as most of the lines are led back to the cockpit through clutches and winches. The spars are made of aluminum alloy, except for some models that have carbon fiber masts for extra lightness and stiffness. The standing rigging is made of stainless steel wire with swaged terminals, while the running rigging is made of synthetic rope or spectra. The sails are made of dacron or laminated cloth, depending on the model and the owner's preference. Some models have in-mast or in-boom reefing systems for convenience and safety.

Keel and Rudder The Ocean 71 has a fin keel with a lead bulb that provides good stability and maneuverability. The keel is bolted to the hull with stainless steel bolts that are accessible from inside the boat for inspection or maintenance. The rudder is a balanced spade rudder that is attached to the skeg by two pintles and gudgeons. The rudder is controlled by two stainless steel wheels in the cockpit through cables or rods that run through tubes under the deck.

The Ocean 71 sailboat is an impressive yacht that combines style, speed and comfort in one package. It is ideal for long-distance cruising or chartering, as it offers ample space, amenities and performance for its guests and crew.

The above text was drafted by sailboat-cruising.com using GPT-4 (OpenAI’s large-scale language-generation model) as a research assistant to develop source material; we believe it to be accurate to the best of our knowledge.

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Ocean 71 is a 70 ′ 11 ″ / 21.6 m monohull sailboat designed by E. G. Van de Stadt and built by Southern Ocean Shipyard Ltd. starting in 1970.

Rig and Sails

Auxilary power, accomodations, calculations.

The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.

Classic hull speed formula:

Hull Speed = 1.34 x √LWL

Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio .311 Hull Speed = Max Speed/Length ratio x √LWL

Sail Area / Displacement Ratio

A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.

SA/D = SA ÷ (D ÷ 64) 2/3

• SA : Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay).
• D : Displacement in pounds.

Ballast / Displacement Ratio

A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.

Ballast / Displacement * 100

Displacement / Length Ratio

A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.

D/L = (D ÷ 2240) ÷ (0.01 x LWL)³

• D: Displacement of the boat in pounds.
• LWL: Waterline length in feet

Comfort Ratio

This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.

Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam 1.33 )

• D: Displacement of the boat in pounds
• LOA: Length overall in feet
• Beam: Width of boat at the widest point in feet

Capsize Screening Formula

This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.

CSV = Beam ÷ ³√(D / 64)

vds design #194. Based on the famed ocean racer STORMVOGEL (1969). Offered as a racing yacht or luxury cruiser. An extremely successful model with more than 20 built. A few were finished by Camper & Nicholson. ‘Ocean Spirit’, (with Robin Knox-Johnson & Leslie Williams as crew), won the double-handed Around Britain race in 1970. Another OCEAN 71 was owned by Graham Kerr, known, at the time on TV, (in both the UK and USA) as the ‘Galloping Gourmet’.

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Ocean 71, ocean joy.

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VAN DE STADT OCEAN 71

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A wonderful, light, fast, comfortable and exceptionally easy to handle 71ft Ketch, designed by Van de Stadt in the 60ties. Owned since 1998 by a renowned ocean regatta sailor who put her through 2 extensive refits in 1998 and 2016 and over the years continually maintained and upgraded her to the highest standard. The owner crossed the ocean many times 3 handed and even 2 handed with ease covering some 200Nm per day .She is in mint condition and ready for long passages with a new owner.

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Ocean 71, OCEAN JOY – mile munching aristocracy & now reduced in price!

August 2nd, 2023

Southern Ocean Shipyard in Poole in the UK pioneered the build of capable world class bluewater cruising yachts in GRP first with the Pioneer, Excalibur and Gallant 53. The Ocean 71 came next followed by the Ocean 60 and Ocean 62, Ocean 72, Ocean 75 and Ocean 80. They were massively successful crossing oceans and sailing far. Their strong construction and robust systems gave them endurance and provided a reliable platform for their owners and crews. Built not just for private owners with crew but also for the burgeoning charter market, they were designed to be handled and sailed reliably by small crews so that they could both reposition and be sailed by their crew when chartering to non-sailors.

The Ocean series won hearts and minds the world over and continue to cross oceans and bring smiles to their crews today.

For current price and further details –  https://www.berthoninternational.com/yacht-sales-brokerage/yachts-for-sale/ocean-71-ocean-joy/ .

History of Ocean 71, OCEAN JOY

OCEAN JOY was built for a family for private use and we have some imagery showing her in her first ownership sailing in the Mediterranean which can be seen below. She was launched in 1972 and these next two photographs were shared with us by her original owner’s family.

In 1998, in this ownership OCEAN JOY found herself in the UK at Hamble Yacht Services on the River Hamble and there she was totally rebuilt to fit her for a serious cruising programme which she then undertook in his ownership. Since then she has been updated and reworked including a major refit at Foxes in Ipswich in 2016, including osmosis treatment and all new paint and new rigging and today she looks tremendous.

She has crossed the Atlantic about 12 times with this owner, cruising in the Caribbean and on the Eastern Seaboard of the USA. 200 mile days are the norm and she is easily handled with 3 crew.

Exploring the Accommodation & Deck Equipment of Ocean 71, OCEAN JOY

Below she OCEAN JOY has a modern feel with a combination of stainless steel and blue leather for a bright and fresh feel. This has been retained as it is an essential part of the yacht.

She has a comfortable owners’ stateroom with a double and single leading to the large main saloon.

There is a single berth cabin opposite her large galley and forward there are 2 guest cabins with upper and lower berths. Forward is to focsul which for storage, workshop and a much needed area when you are sailing far.

Her ketch rig with fully battened main and mizzen and power for genoa makes her easy to handle and provides a versatile sail plan. Without teak decks, she is easy to maintain and she has a large centre cockpit for sailing and entertaining with an aft cockpit for her owner and guests to enjoy. She is an efficient Sailing machine

An Insight into the Current Plans Ocean 71, OCEAN JOY

OCEAN JOY must now be sold as the owner’s sailing programme is completed and he has swallowed the anchor. The price has recently been reduced to £499,000 which is a significant reduction on her original ask of £585,000. She is European and UK VAT paid. She is perfect for adventure sailing or for a family to sail around the planet aboard. Her biggest modesty is her price.

Contact [email protected] .

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The Ocean 71 is a 71.0ft masthead ketch designed by E.G. van de Stadt and built in fiberglass by Southern Ocean Shipyard Ltd. (UK) since 1970.

The Ocean 71 is a light sailboat which is a very high performer. It is not stiff and has an excellent righting capability if capsized. It is best suited as a heavy bluewater cruising boat.

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Southern Ocean Shipyard OCEAN 71 for sale in Portimao, Faro Portugal

Berthon International

Portimao, Faro Portugal

Make & Model

Southern Ocean Shipyard OCEAN 71

MEASUREMENTS

Description.

The Ocean 71 is an iconic yacht with stunning lines by Van de Stadt and built in the UK by the famous SOS yard. OCEAN JOY was totally rebuilt in 1998 in Hamble and has carried her current owners far. She has been consistently improved and updated through the year. She is a perfect platform for bluewater sailing in all oceans and her split rig makes her manageable with modest crews.

Cruising Speed

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ADDITIONAL INFORMATION

Hull Material

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Displacement(kgs)

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State Rooms

Water Tanks Capacity

ABOUT SOUTHERN OCEAN SHIPYARD OCEAN 71

The Southern Ocean Shipyard OCEAN 71 is 71 feet long and has a 17 feet beam. This 1972 Southern Ocean Shipyard OCEAN 71 powered by Perkins 6354 with 115 horsepower is capable of reaching a maximum speed of 9.0 knots and a cruising speed of 8.0. The Southern Ocean Shipyard OCEAN 71 is made of fiberglass.

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1972 van de stadt ocean 71 for sale.

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• OCEAN JOY 1972 SOUTHERN OCEAN SHIPYARD Ocean 71 Cruising Sailboat Yacht MLS #321826

OCEAN JOY - 1972 71' SOUTHERN OCEAN SHIPYARD Ocean 71 Portimao Faro Portugal ($601,588 USD est.) £450,000 GBP

FULL SPECIFICATIONS

Additional specifications are available for this listing. Click below to get detailed information.

• Hull is solid GRP an inch or more in thickness.
• Deck is solid GRP with some areas having an additional foam core.
• Superstructure is solid GRP.
• Encapsulated lead keel.
• Foam cored rudder.
• 1 x Perkins 6354, 115hp non turbo. New in 2015/2016.
• Temperature alarms on panel and at chart table.
• Borg Warner hydraulic gearbox 1972. Rebuilt 1998.
• Engine hours – approx. 500 hours (January 2024).
• All servicing up to date.
• Cruising speed – 8 knots.
• Maximum speed – 9 knots.
• Range @ cruising speed – 2000 miles +/-.
• 4 blade Maxprop ‘Easy’ 2016.
• Aquadrive shaft coupling.
• New shaft 2016.
• Whitlock Mamba with rod.
• Reckmann Hydraulic furler on headstay.
• Reckmann Hydraulic vang.
• 24 v DC with 12 v DC for some electronics.
• Domestic battery is 12 x 2 v DC lead acid batteries (Varta 2016) giving a bank of 720 amps at 24 v DC.
• Charging by Mastervolt 100 amp AC charger.
• Separate engine start batteries 2 x 12 v DC.
• Separate generator start battery 1 x 12 v DC.
• Mastervolt 100 amp AC battery charger.
• Mastervolt 2kw inverter.
• Alternators on main engine and generator for start batteries.
• 100 amp additional charger’smart’ alternator on main engine charging domestic bank.
• 1 x Northern Lights 12 KW (new 1998). Generator is 110 vAC.
• Generator hours – approx. 3000 (January 2024).
• Shore power either 220 v AC or 110 v AC – transformer on board.
• 24 v DC pressurised water system Jabsco dual pumps.
• Calorifiers on both main engine and generator.
• 110 v DC immersion heater in hot water tank.
• Aquafresh watermaker 110 v AC 2 x 48” membranes (Rebuilt 2016).
• 2 x Whale Titans manual pumps (Pumping 3 bilges through manifold in engine room).
• 1.5” engine drive Jabsco pump on main engine for bilges (3) and fire-fighting.
• Jabsco electric bilge pump in engine room pumping 2 bilges.
• Whale manual pump in aft cockpit locker.
• 4 x bilge alarm sensors with audible and visual alarm at chart table.
• Black water tank under forward cabin seats from one head only. Electric pump out.
• Grey water from all showers and sinks to grey water tank in bilge area. Electric diaphram pump out and manual back up.
• 2 x 950 litre polyethylene fuel tanks, port and starboard – total fuel capacity of 1900 litres.
• GRP moulded into hull.
• Total fresh water capacity of 1700 litres.
• 2 x 600 litre polyethylene Tek-Tanks (2016) 8mm welded plastic.
• 2 x 250 litre secondary plastic tanks.
• Tank level indictor.
• 1 x polyethylene Tek-Tank blackwater tank, 100 litres.
• 1 x polyethylene greywater tank moulded into hull, 1000 litres.
• 3 x electric compass.
• BPSC Solent compass.
• 2 x Autohelm 7000 autopilots. Separate but interchangeable systems. One linear drive to quadrant one Whitlock motor direct to steering.
• Furuno 24 mile radar with ARPA and external alarms.
• Furuno GPS.
• Furuno Fish finder colour depth.
• Furuno weather fax.
• SEA 150 W SSB (remote control head at chart table) Tuner aft. Insulated mizzen cap shroud.
• Skymate satellite communications.
• Raymarine instruments (2016) Wind, close hauled, depth, log.
• Raymarine C120 plotter at chart table.
• Raymarine plotter under spray hood.
• Prosser digital barometer.
• Force 10 4 burner propane cooker with oven and grill (2015).
• 3 x isotherm refrigeration units keel cooled (2016). 2 x freezers 1 x fridge.
• Double Stainless steel Franke sink with central tap and shower unit. Back up Whale foot pump.
• Extractor fan.
• 3 x heads each with shower, basin and Sanimarin electric head (2016). All heads run on fresh and saltwater.
• After head has small bath.
• Condaria reverse cycle air conditioning (with two compressors). Chilled or heated water fed to 4 handlers throughout the boat.
• Forced air ventilation throughout the boat running port and starboard.
• Extraction fans in heads and galley.
• Bose music system in saloon.
• All lighting (apart from deck level navigation lights) changed to LED in 2016.
• 3 x different sets of Aquasignal navigation lights. 2 Trilights at masthead and deck level lights and steaming light.
• Deck lights on main and mizzen.
• Interior lights throughout including overhead, recessed and reading lights above every bunk.
• Total of 10 berths in 4 cabins (but comfortable 7 in 3 cabins).
• Aft cabin has double to port and single to starboard. Has own companionway aft, dressing table, mirror, stool and 2 hanging lockers port and starboard. 3 overhead lockers both P and S.
• Saloon has leather upholstery and very comfortable seating all round (designed by owner) with stowage under and fold out table to port. Seats 6. Overhead aircraft style lockers P ands.
• Oppposite galley is single cabin with hanging locker, overhead lockers and basin.
• Forward of galley on port side is ‘Port cabin’. 2 single berths, hanging locker, small dressing table and drawers and overhead lockers.
• Forward again is ‘Forward cabin’ 2 single berths to port, hanging locker, overhead lockers, dinette arrangement to starboard with table and two leather upholstered seats. Table drops down to make extra bunk.
• Forward again is focsul. Designed by owner as as massive chain locker (self-paying out and stowing) Lockers P and S for tools and spares.
• OCEAN JOY was built in 1972, with a ‘modern’ interior. During the 1998 rebuild I endeavored to keep the original feel. There is extensive use of highly polished stainless steel, high quality blue Formica type material, and blue leather. All soles are Bruynzeel teak and ebony. Bulkheads and deckheads are white painted Bruynzeel ply. The whole gives a light, airy and cool feel, particularly suited to warm weather cruising.
• Rebuilt and redesigned to enable trouble free anchoring with the 80 fathoms 12mm Lloyds tested chain on board. The chain pays out and stows itself and there is a dedicated pump for the chain locker. The rest of the focsul has stowage for tools and spares.
• Aft of focsul is a Sanimarin head (2016) with shower and washbasin to starboard.
• Lockers outboard and below.
• Overhead is a double opening Goiot cast alloy hatch (large).
• Two single berths to port with lockers above and below and hanging locker on fwd bulkhead. Drawers under.
• To starboard is the ‘dinette’ arrangement with table and two leather seats. This will convert to bunk.
• There is a stowed door arrangement which will divide this cabin into two longitudinally.
• Two Double opening Goiot hatches.
• Two single berths to port, one above the other.
• Lockers above and below and a hanging locker on the centre line alongside the main mast. This locker also contains the air conditioning unit.
• The aft bulkhead has a mirror with small dressing table and drawers under.
• Double opening Goiot hatch.
• Across the passage from the Port Cabin, consisting of shower, basin and Sanimarin electric head.
• Lockers outboard and under basin.
• Electric vent to deck and double opening Goiot hatch.
• Situated to port. It is an exceptionally good seagoing galley.
• The fully gimballed Force 10 4 burner cooker is to port.
• Large chest freezers are forward and aft of the cooker with a microwave above and lockers either side of microwave.
• All work surfaces are stainless steel and form a ‘U’ with the cooker in the middle and the double SS Franke sink on the aft side.
• Above the sink is a closeable hatch from the galley into the saloon.
• The work tops are topped with a stainless steel rail all round including in front of the cooker.
• Below the sink are the refrigeration compressors, (all 2016 and keel cooled) with locker either side and above.
• On the forward side of the galley is the large fridge with vented vegetable locker inboard and lockers above.
• Electric vent above cooker and Double opening Goiot hatch.
• Situated across the passage from the galley.
• Single berth with locker above.
• Spare water tank below and a wash basin to the side.
• Opposite the wash basin, on the fwd bulkhead is a large hanging locker.
• Situated aft of Galley and up a step.
• Blue leather upholstered seating all round. These are extremely comfortable and hinge forweard with stowage below.
• Lockers ouitboard and aircraft style lockers port and starboard.
• Stainless steel table on port side which opens up, having three parts. The table will also turn and drop down to coffe tabe height if required.
• To starboard outboard is a spare water tank and the aft facing chart table aft starboard side. The table takes a full size Admiralty chart.
• Outboard is the electric panel.
• Below the saloon are the domestic batteries, vented, principle water tanks and fuel tanks port and starboard.
• The companionway is aft up a SS ladder leading to the main cockpit.
• Proceeding aft, down a step and through a low headroom passageway and located to starboard.
• Small bath with shower, wash basin and Sanimarin electric head facing forward.
• The double doors open out to close off the passageway and increase the size of the heads compartment.
• Ample stowage outboard and below the basin and electric vent to deck.
• Directly aft, also off the passageway is a hanging locker for oilskins etc. It also houses three electronic compasses for the autopilots and radar.
• Double bunk to port with chart stowage under.
• Single bunk to starboard.
• Circular mirror on the fwd bulkhead above dressing table and drawers.
• The mizzen mast support runs through a circular leather upholstered stool.
• Two hanging lockers port and Starboard. The starboard one housing a small built in safe and the SSB tuner.
• There is an aft companionway up to the aft cockpit.
• The aft cockpit is flush with teak slats.
• Below two hinged lids are two massive lockers for fenders, lines etc. The compartment is divided longitudinally and the fwd bulkhead is water tight. The compartment is pumped by a single diaphragm whale pump.
• On the fwd bulked, steering gear with gearbox and autopilot linear drive unit, all boxed in but easily accessible.
• Located aft of the cockpit, there is a sealed and drained gas locker to port housing two 9 kg propane bottles.
• To starboard is shelving and further storage.
• Ketch rig and original John Powell, silver anodised, double spreader main mast. The masts were re-built in 1998 by Roger Plumb who had worked for John Powell and had built the masts originally. We redesigned winch layout and all leads for shorthanded use with all halyards and reef lines leading forward to a powered Andersen winch. The winches on the masts were relocated, pads added and Goiot jammers positioned where necessary. Any corrosion was taken care of and doublers put inside the masts where required. Tracks were fitted to both masts for Frederiksen cars and the fully battened main and mizzen drop easily into lazyjacks. Setting sail, taking a reef and shaking out a reef is simplicity itself and a one person operation.
• Two spinnaker poles, also John Powell, one has a rotating jaw.
• Main boom by John Powell with Reckmann hydraulic vang 2016.
• All standing rigging replaced in 2016 by Advanced Rigging, Hamble. Including all screws and toggles.
• All running rigging replaced 2016 by Advanced Rigging, Hamble.
• All winches with the exception of 4 Lewmars were replaced in 1998.
• 2 x Andersen 68 ST Electric.
• 1 x Andersen 58 ST Electric.
• 3 X Andersen 58 ST.
• 2 X Andersen 52 ST.
• 2 X Andersen 46 ST.
• 3 X Andersen 40 ST.
• 1 X Lewmar 52 ST.
• 1 X Lewmar 48 ST.
• 2 X Lewmar 43 ST.
• 1 x Main – fully battened Banks Sails 1998.
• 1 x Headsail (high cut) Banks Sails 1998 on Reckmann hydraulic furler.
• 1 x Staysail. Banks Sails 1998 on Reckmann manual furler -2016.
• 1 x Storm jib. Sanders Sails 2004.
• 1 x Trysail. Sanders Sails 2004.
• 1 x Mizzen - fully battened Banks Sails 1998.
• 1 x Mizzen Staysail. Sanders sails 2004.
• 1 x Spinnaker, Asymetric. Banks sails 1998.
• 1 x Spade 60kg anchor, 2016.
• 1 x CQR 60kg, 1998.
• Fenders and dock lines.
• Awning by Antigua Sails 2010. Sunbrella fabric.
• Cockpit cushions in Sunbrella fabric and closed cell foam.
• Avon 3.10m RIB 1998.
• Mariner 2.5hp.
• Viking 6 person Liferaft in canister/SS cradle on deck.
• 6 x Viking Lifejackets unused.
• Jotun EPIRB.
• 2 x horseshoe life rings.
• Halon replacement cylinder in engine room- remote operation.
• Smoke alarm in engine room.
• Various powder extinguishers throughout boat.

Call Broker

Bill Snyder Michael Rybovich & Sons Yacht Sales, Inc.

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Southern Ocean 71

Buy 1974 southern ocean 71.

1974 Southern Ocean 71 for sale

Used 1974 Southern Ocean 71 for sale is located in Marmaris ( Muğla Province , Turkey ). This vessel was designed and built by the Southern Ocean shipyard in 1974. Key features 1974 Southern Ocean 71: length 21.95 meters, beam 5.5 meters and max boat draft 2.7 meters. Hull key features 1974 Southern Ocean 71: keel type - other keel. Inboard Diesel PERKINS160 HP engine: fuel type - diesel. Total berths - 11. 1974 Southern Ocean 71 refers to classes: sailing yachts , sailboats and sailing sloops . To clarify the price €500,000 and buy Southern Ocean 71 - contact the offerer!

1974 Southern Ocean 71 photos

1974 Southern Ocean 71 specification & technical information

1974 Southern Ocean 71 price

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This offer published by Yacht Brokerage

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Review of Ocean 71

Basic specs..

The hull is made of fibreglass. Generally, a hull made of fibreglass requires only a minimum of maintenance during the sailing season.

The boat equipped with a ketch rig. A ketch rig is generally considered easier to handle, because the sails are smaller, and because it can sail on most points to the wind with one sail completely taken down for repair or while reefing. The sail configuration of a ketch allows for better comfort and stability when sailing downwind or on a broad reach.

The Ocean 71 is equipped with a fin keel. The fin keel is the most common keel and provides splendid manoeuvrability. The downside is that it has less directional stability than a long keel.

The boat can only enter major marinas as the draft is about 2.51 - 2.61 meter (8.23 - 8.53 ft) dependent on the load. See immersion rate below.

Sailing characteristics

This section covers widely used rules of thumb to describe the sailing characteristics. Please note that even though the calculations are correct, the interpretation of the results might not be valid for extreme boats.

What is Capsize Screening Formula (CSF)?

The capsize screening value for Ocean 71 is 1.58, indicating that this boat could - if evaluated by this formula alone - be accepted to participate in ocean races.

What is Theoretical Maximum Hull Speed?

The theoretical maximal speed of a displacement boat of this length is 10.3 knots. The term "Theoretical Maximum Hull Speed" is widely used even though a boat can sail faster. The term shall be interpreted as above the theoretical speed a great additional power is necessary for a small gain in speed.

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for Ocean 71 is about 639 kg/cm, alternatively 3579 lbs/inch. Meaning: if you load 639 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 3579 lbs cargo on the boat it will sink 1 inch.

Sailing statistics

This section is statistical comparison with similar boats of the same category. The basis of the following statistical computations is our unique database with more than 26,000 different boat types and 350,000 data points.

What is L/B (Length Beam Ratio)?

The l/b ratio for Ocean 71 is 4.33.

SA/D (Sail Area Displacement ratio) Indicates how fast the boat is in light wind: - Cruising Boats have ratios 10-15 - Cruiser-Racers have ratios 16-20 - Racers have ratios above 20 - High-Performance Racers have ratios above 24 Sail-area/displacement ratio (SA/D ratio): 25.66

Sorry, we do not have sufficient statistical information available for this boat to provide a significant reliable analysis.

Maintenance

When buying anti-fouling bottom paint, it's nice to know how much to buy. The surface of the wet bottom is about 106m 2 (1140 ft 2 ). Based on this, your favourite maritime shop can tell you the quantity you need.

If you need to renew parts of your running rig and is not quite sure of the dimensions, you may find the estimates computed below useful.

This section is reserved boat owner's modifications, improvements, etc. Here you might find (or contribute with) inspiration for your boat.

Do you have changes/improvements you would like to share? Upload a photo and describe what you have done.

We are always looking for new photos. If you can contribute with photos for Ocean 71 it would be a great help.

If you have any comments to the review, improvement suggestions, or the like, feel free to contact us . Criticism helps us to improve.