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Dufour 485 Grand' Large

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.

 

Dufour 485 Interior 1
Dufour 485 Interior 2

Dufour 485 Deckplan

Dufour 485 3D 1

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

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Yacht Harbour Association Burton Waters Ipswich • Ipswich Haven Marina • New Cut East • Ipswich • Suffolk IP3 0EA • England
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