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TECHNICAL DATA
| Architects: | Umberto Felci / Patrick Roséo | |
| Length overall: | 14.73 m | 58' 2" |
| Hull Length: | 14.40 m | 47' 2" |
| LWL: | 13.00 m | 43'7" |
| Beam: | 4.70 m | 15' 4" |
| Light Displacement (approx): | 15,100 kg | 30,502 lbs |
| Standard Draft (cast iron keel – shallow): | 1.90 m | 6' 2" |
| Ballast Weight (shallow): | 3,800 kg | 7,676 lbs |
| Draft, optional (cast iron/lead keel – long): | 2.25 m | 7' 4" |
| Ballast Weight (long): | 3,700 kg | 7,474 lbs |
| Fresh Water Capacity: | 590 ltr | 130 gal |
| Fuel Capacity: | 250 ltr | 55 gal |
| Engine Power: | 75 hp | |
| Sail Area: | ||
| Sail area, close-hauled: | 113.00 m² | 1,216 ft² |
| Mainsail | 54.00 m² | 603 ft² |
| Genoa (140%): | 59.00 m² | 635 ft² |
| Sail Plan: | ||
| I: | 16.67 m | 54' 7" |
| J | 5.01 m | 16' 4" |
| P: | 15.73 m | 51' 6" |
| E: | 5.70 m | 18' 7" |
| LP (140% overlap): | 7.04 m | 23' 1" |
Hull:
• The sandwich design of the hull makes for very good thermal and acoustic insulation.
• The lamination of the network of ribs reinforces the hull’s solidity and in this way ensures very good spreading of the forces from the keel and rigging.
• The inner moulding liner, with its perfect surface finish, produces additional stowage space under the floors and allows easier cleaning.
• Prevention of osmosis on the hull with the use of an NPG gelcoat.
Deck:
• The deck is produced by infusion for an optimum rigidity/lightness ratio, along with excellent thermal and acoustic insulation, and has an inner moulding liner for a perfect finish.
• All working and traffic areas have a ‘diamond-point’ non-slip surface.
• Localised monolithic reinforcing areas are included under deck fittings (winches, tracks, chain-plates, cleats).
• To increase the boat’s durability, Dufour’s team of engineers have opted to minimise wooden structural inserts beneath deck fittings.
Hull/Deck Junction:
• A straight sheer strake forms the join between the hull and the deck. This assembly ensures the watertightness of the hull/deck join and increases safety when moving around on deck.
• The wooden toe-board emphasises the deck line, and offers non-aggressive protection for the feet.
• The join between the transom/hull is built flat for greater aestheticism.
Keel:
• For maximum life, keels undergo factory treatment before fitting (anti-corrosion and improved finish thanks to epoxy-based paint and coatings).
• The keel, with a large sole-plate, is fixed to the boat with a system of stainless steel backing-plate and nuts.
• The (bulb) keel is in cast iron: 1.90 m (6' 2").
• As an option, a long, mixed cast-iron/lead ballast keel with a draft of 2.25 m (7' 4") allows superior (stiff, close-winded) performance, whilst maintaining an acceptable draft, lowering the centre of gravity, and increasing the boat’s stability.
Helm System:
• 2 leather-sleeved stainless steel steering wheels, 1066 mm (3' 5") in diameter.
• The steering wheels are easily controllable from a seated position on the helmsman’s side bench seats.
• Transmission system via chain and cranks connected to the rudder quadrant.
• The rudder blade is semi-elliptical in shape – taking advantage of the latest research in hydrodynamics – and filled with very high density, closed-cell epoxy foam to avoid any ingress of water.
• The solid stainless rudder stock is mounted on self-aligning bearings for greater precision and lightness of the helm whatever the wind conditions.
• Stainless steel emergency tiller.
• Access deck-plate for emergency tiller.
Mooring and Anchoring:
• Self-draining anchor locker forward, with hatch cover.
• Anchor eyebolt.
• Vertical 1.5 kW electric windlass with control box in the sail locker for remote electrical control.
• Gypsy.
• 2 bow rollers with stainless stemhead fitting (sailing possible with anchor catted).
• 6 stainless steel mooring cleats for making fast warps and springs.
• 6 stainless steel rubbing plates on sheer line.
• Fender stowage provided in stern locker or sail locker.
• Delta anchor 25 kg (51 lbs).
• 30 m (98' 4") anchor chain Ø 12. 60 m (196' 9") cable Ø 22.
• 2 x 15 m (49' 2") mooring lines Ø 18. 1 x 42m (138') mooring line Ø 18.
• 6 fenders (big size).
Safety:
• Open stainless steel bow pulpit easing access aboard and spinnaker handling.
• 2 stainless stern pushpits.
• Bracket for lifebelt, flag and outboard bracket.
• The boat is ringed by 2 rows of guard rails supported on stanchions fixed to bases bolted to the deck.
• 2 large gates in guard rails.
• 2 teak handrails on the coach-roof make getting around easier.
• Handrail astern of cockpit table.
• 2 handrails above companionway.
• Chain-plates for safety harnesses.
• All running lines pass beneath the deck, leaving the coach-roof clear.
Cockpit:
• Self-draining cockpit, with floor in non-slip polyester.
• Large cockpit benches with teak trim.
• Very convenient, safe cockpit coamings with winch areas in teak.
• Large, fixed cockpit table fitted with teak tray and stainless fiddles with hinged leaves: easy movement and lots of seating around the table.
• A cubby-hole behind helm console.
• For keeping ropes tidy, the cockpit has a rope tub at the entrance to the companionway.
• Sliding Plexiglas companionway hatch.
• Companionway sprayhood (3 brackets) in Dufour Yachts colours built in to the coach-roof and fitted with leather-covered stainless handrails.
• Navigation instrument location above companionway.
• Gas cylinder locker. Cockpit lighting via dedicated spotlight built in under boom.
Sun Platform and Transom:
• Large teak covered aft sun platform.
• Removable bathing ladder with teak steps.
• Removable ladder with teak steps for the gate doors.
• Cockpit shower with hot and cold water.
• Transom with hinged door to access the liferaft locker, with removable bathing ladder.
Mast and Boom:
• 9/10 fractional rig anodised aluminium mast stepped on the deck, carrying 2 levels of 20° swept-back spreaders.
• Mast equipped with slider system.
• Mast steps.
• Anodised aluminium boom.
• Deck floodlight.
Bowsprit:
• Retractable bowsprit allows attachment of spinnaker tack. Tack position adjustable from cockpit.
Sails:
• Genoa cut with a horizontal cut suitable for the roller furler with added anti-UV protection. 140% overlap.
• Standard mainsail with track (sliding rollers) and 2 rows of reef points.
• Mainsail bearing ‘Drakkar’ logo.
• Lazy jack.
• Lazy bag in Dufour Yachts colours.
• Mainsail sheet track with tackle return to cockpit.
Genoa System:
• Twin-slot genoa roller furler and furling line.
• 2 pulleys for genoa furler line, 3 fairleads and jammer on port side deck (returned to cockpit).
• 2 genoa sheet tracks with HARKEN piston-adjustable traveller blocks.
Standing Rigging:
• Continuous-type stainless rigging.
• Backstay bridle with twin turnbuckles.
• Single forestay.
Running Rigging:
• Mainsheet returned to cockpit.
• Mainsail halyard returned to cockpit.
• Boom topping lift with mast cleat.
• 2 automatic reefing lines returned to cockpit.
• Mainsail outhaul returned to cockpit.
• Rigid boom vang with 4:1 tackle returned to cockpit.
• 2 genoa sheets.
• Genoa halyard returned to halyard winch.
Handling the running rigging:
• Mainsail track on coach-roof.
• 10 Spinlock XTS jammers.
• 2 Spinlock XAS jammers.
• 2 x 5 sheave deck organisers.
Winches:
Aluminium self-tailing type winches (HARKEN):
• 2 H 53 STA genoa sheet winches
• 2 H 44 STA handling winches on coach-roof.
• 2 aluminium winch handles with 2 boxes.
Locating the winches aft makes for easy operation by helmsman.
Ports, Hatches and Covers:
• 5 opening ports on coamings.
• Plexiglas fixed ports on coamings and fore roof.
• 4 hull ports.
• 2 opening cockpit ports.
• 3 Lewmar T60 opening deck hatches.
• 2 Lewmar T44 opening deck hatches.
• Sliding Plexiglass companionway hatch.
• Sliding companionway door in floor of cockpit.
• T60 deck hatch access to sail locker.
• 2 T20 deck hatches.
Engine:
• Engine installation: Volvo 75 hp engine with sail-drive transmission.
• 110 hp Volvo engine with prop shaft transmission and folding propeller also available as an option.
• Carefully designed foam soundproofing.
• Engine compartment ventilation via 100 mm (4") ducts leading to transom (invisible ventilation openings).
• Engine sump.
• Engine control lever and engine control panel built into aft sun platform, aft of the port helm position.
• Rev counter and hour meter.
• Fixed 3-blade prop.
• 250 ltr (55 gal) rotomoulded fuel tank beneath aft bunks, with electric fuel gauge remoted to chart table.
• Fuel filter with water separator, plus sea-water filter, anti-siphon valve.
• Engine compartment light.
Electricity:
Supply:
• Engine starter battery (12 V / 135 Ah).
• 2 service batteries (12 V x 2 x 135 Ah). The set of batteries is fitted with a relay. Service batteries stowed beneath floor at foot of companionway.
• 300 W inverter incorporating a socket for a laptop computer.
• High-output 120 Ah alternator.
Electrical Equipment:
Electrical distribution panel with 21 functions on 12 V and 6 functions of 220 V, including:
• Voltmeter for service battery and engine (220 V and 12 V).
• Ammeter for consumption.
• Electrical water level gauges.
• Electrical fuel gauges.
The 12 V electrical circuit is protected by circuit-breakers. The 220 V circuit has dual protection, via 1 thermal-magnetic circuit-breaker per function, and an overall 30 mA differential circuit-breaker on the distribution panel.
• 40 Ah battery charger.
• Shore supply socket forward of sun platform.
• Deck floodlight.
• LED cockpit lighting on end of boom.
• 220 V power sockets in all parts of the yacht – 2 in forward cabin, at chart table, 1 per aft cabin, in galley.
• Chrome-finish halogen ceiling lights.
• Chrome-finish reading lamps.
• Pre-equipment for optional cable installation.
Navigation Lights:
• LED navigation lights port and starboard on bow pulpit.
• LED stern light on stern pushpit.
• Steaming and LED anchor lights on mast.
Water System:
• Hot water system with 60 ltr (13 gal) water heater located in saloon to starboard.
The 530 ltr (117 gal) water capacity is stored in:
• 250 ltr (55 gal) rigid rotomoulded water tank beneath bunk in aft port cabin.
• 280 ltr (62 gal) rotomoulded water tank beneath bunk in forward cabin.
The tanks are fitted with electrical level gauges.
• Fresh water system with electrical pump.
• Foot pump for fresh and sea water.
• 2 bilge pumps: 1 manual and 1 electric.
• Cockpit shower with hot and cold water.
LAYOUT:
2 layout versions:
• 3 or 4 cabins.
• 3 or 4 heads.
• Floors are made of Moabi (Wenge floors are available on request).
• Interior woodwork is in first-grade Moabi and Wenge.
• Beadings, trims and cubby-hole door surrounds are in solid wood.
• Ventilation louvers are fitted at the top of cupboard doors.
• Interior lighting via numerous ceiling lights and reading lamps.
• All cushions have easily removed covers.
Companionway:
• Wooden companionway.
• Engine access beneath companionway (retaining strut for safe opening, compartment light).
• Stainless handrail.
• Companionway closed off by means of sliding Plexiglass hatch.
• Service batteries stowed beneath floor at foot of companionway.
Chart Table to Starboard:
• Side-facing chart table.
• Space provided for laptop computer.
• Unit with shelf beneath chart table.
• High-level unit running along side.
• Bookshelf.
• Panel for navigation instruments.
• Chart reader.
• Electrical distribution panel (12 V / 220 V).
• All functions indicated by engraved labels in both French and English.
• 12 V power socket.
• 220 V power socket.
• Water and diesel gauges.
• Seat with cushion.
• Fixed port in coach-roof side.
Aft Heads Port / Starboard:
• Polyester bulkheads to protect woodwork from water.
• Sea toilet.
• Shower tray.
• Synthetic resin washbasin, high-level unit, mirror, toilet accessories, single-lever mixer tap and shower head.
• Electric shower waste pump discharging into sea.
• 40 ltr (9 gal) rotomoulded toilet waste tank (deck / sea discharge) in starboard aft cabin.
• Light fitting.
• Opening port in coach-roof side.
Aft Cabins:
• Stowage beneath bunk.
• Hanging locker with light and shelves.
• High-level unit running along the hull.
• Central cubby-hole between the 2 cabins.
• Hull/ceiling liner in wood and simulated leather.
• Light fittings.
• Ports opening onto coamings.
• 220 V power socket.
Sail Locker:
• T60 deck hatch.
• Stainless ladder.
• Rail for hanging ropes.
• Lewmar ventilator.
• Water drainage via floor.
Forward Cabin(s):
3 Cabin Version:
• Door and access to en-suite head.
• Closed units running along side to port and starboard.
• Hanging locker with light and shelves to starboard.
• 6 light fittings.
• Hull liner.
• 2 opening deck hatches with ventilators.
• 2 hull ports.
• Central bunk.
• Accessible stowage under bunk with 2 drawers on bunk face.
• 2 x 220 V sockets.
4 Cabin Version:
• Door and access to en-suite heads.
• Closed units running along side.
• Hanging locker with light and shelves in port cabin: unit in starboard cabin.
• 4 light fittings.
• Hull liner.
• Opening deck hatch in each cabin with ventilator, black-out blind and mosquito screens.
• 2 hull ports.
• Bunk.
• Seat with cushion against side at foot of each bunk.
• Accessible stowage under bunks
• 220 V socket in each cabin.
Forward Head(s):
• Polyester bulkheads to protect woodwork from water.
• Sea toilet.
• Shower tray.
• Synthetic resin washbasin, high-level unit, mirror, toilet accessories.
• Electric shower waste pump discharging into sea.
• T20 deck hatch.
Saloon:
• Saloon with U-shaped banquette seat to port and long banquette seat to starboard. A central settee allows 2 extra guests to sit at the table.
• 2 low units, acting as arms for the starboard banquette, offer extra stowage.
• Fitted unit against forward bulkhead.
• Stowage in port banquette, accessible by lowering the back.
• Fixed saloon table: 1.2 m x 0.9 m (3' 9" x 2' 10").
• Aluminium table legs.
• Cubby-holes and closed stowage units running along the side of the hull, behind the banquette backs.
• Hull liner in wood.
• Ceiling lights and bulkhead lights.
• T60 opening deck hatch.
• 1 ventilator.
• 2 hull ports.
L-Shaped Galley:
• Corian® worktop with wooden fiddle round it.
• Double sink with synthetic resin cover doubling as a chopping board.
• Waste bin below sink.
• Under-sink storage and cutlery drawer.
• Sliding storage bins.
• Stowage cubby-holes along side of hull.
• Gimbal-mounted stainless ‘Bretagne Evolution’ 3-burner gas cooker with grill/oven, with stainless fiddle and anchor-point for safety strap.
• Bottle stowage.
• System for securing crockery in dedicated unit fitted with pegs.
• 1 opening port in coach-roof side.
• Ceiling lights and spotlight.
• 100 ltr (22 gal) top-opening 12 V operated coolbox.
• 50 ltr (11 gal) freezer available as an option.
• 50 ltr (11 gal) front-opening 12 V refrigerator.
Miscellaneous:
• Crockery set: Design square monogrammed dinner service for 10 people.
• GPS Inmarsat D+: Allows the Dufour 485 Grand’Large owner to remotely locate his yacht from the Internet in real time, and be informed of any intrusion on board.




These descriptions, illustrations, etc. are for information only. Models may be subject to certain production improvements or modifications without notice.
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