Dufour Yacht

Dufour 455 Grand'large - Technical Specifications

Construction

  • Hand laminated GRP hull.
  • The NPG gelcoat (the first layer of cloth is impregnated with NPG resin) forms an optimum barrier against osmosis.
  • Inner moulded hull bottom, structural grid laminated to the hull. Hull portlights in the saloon. Deck in Balsa core sandwich, made by Infusion process.
  • Draft 2.20m, cast iron keel, bolt loads taken up by stainless steel backing plate.
  • Semi-elliptical rudder, filled with closed cell epoxy foam. Stainless steel, solid stock.

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Deck & Deck Fittings

  • Teak handrails on coachroof. Wooden toerail.
  • Self-draining chain locker with eye bolt and integrated windlass bracket, lid with locking bolt. Stemhead fitting anchor roller.
  • Pulpit with wooden step and separate green/red navigation lights.
  • Pushpits with horseshoe buoy bracket, flag pole holder, navigation light, and opening cable gate with hook.
  • Stanchions with two levels of life line.
  • Six aluminium mooring cleats. Single stainless steel chainplate for cap shrouds/aft lower shrouds. Two chainplates for the backstay.
  • Two deck fillers, one water and one for fuel.
  • Mainsheet track on and adjustable traveller on coachroof. Boom vang. Genoa sheet tracks with piston lead blocks.
  • Genoa sheet turning blocks on coaming. 8 sheave deck organizers for halyard returns, mainsail sheet and reefing lines.
  • Stainless steel swan neck electric/electronic cable gland. Two x three clutches on coachroof.
  • Two x 44.2 ST halyard winches on the roof to starboard.
  • Two x 53.2 ST genoa winches on coamings close to the helmsman.

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Cockpit

  • Teak trimmed seats, GRP sole.
  • Two large side lockers with lids fitted with padlock hasps.
  • GRP steering pedestals.
  • Rudder stock head under helmsman's sole for installing the emergency tiller.
  • Engine lever and control panel easily to hand for the helmsman on the starboard side.
  • Transom open in centre with a tipping helmsman's seat giving access to the swim/boarding platform.
  • Gas cylinder locker in aft port seat. Life raft stowage in dedicated locker under helmsman seat.
  • Cockpit shower in aft locker. Folding stainless steel bathing ladder.

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Sails & Rigging

  • Anodised aluminium mast with double swept backed spreaders, rigged 15/16, deck stepped.
  • Anchor and steaming lights.
  • Boom topping lift cleat. Anodised aluminium boom equipped with two single line reefing system.
  • Genoa furler.
  • Grounded rigging system.
  • Continuous standing rigging in single strand stainless steel cable and chrome plated bronze turnbuckles including: forestay, double backstay, cap shrouds, inter and lower shrouds.
  • Pre-stretched running rigging including: Main and Genoa halyards, boom topping lift, Main and Genoa sheets, two reefing lines, outhaul line, Mainsheet car control line, furling line, boom vang tackle.
  • Mainsail equipped with two broad reef bands, with battens and bag. Furling Genoa with anti-UV protection.

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Interior

  • All joinery work is finished in prime choice Moabi mahogany, with fiddles, mouldings and framings in solid wood.
  • Cabin doors have a blocking system in order to keep them open where necessary.
  • Soles are in Moabi laminated floor boards.
  • Saloon cushions and mattress fabrics have removable covers. The upper cabin linings are in Moabi wood, the bottom in cream coloured vinyl.

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Ventilation & Lighting

Very good ventilation is ensured by

  • 10 deck hatches with integrated ventilators, four opening port-lights on roof with curtains, permanent ventilation with two aerators, «mushroom» models.
  • Two hull port-lights as well as four fixed pot-lights add to the saloon's natural brightness.

Numerous spotlights and reading lights come in a chrome finish.

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Companionway

  • Headroom : 1,95m
  • Sliding companionway hatch and washboards in Plexiglas with stops and lock.
  • Curved wooden steps and access to engine by lifting step case on jacks. Two handrails.
  • Dedicated stowage for companionway door inside the boat.

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Forward Cabin

  • Large berth approximately 2m long with a 10cm thick mattress with washable cover. 280 litre water tank.
  • Access to stowage locker under berth. Full length shelf with sea-fiddle over the berth alongside the hull. Large hanging locker with shelves.
  • Access to navigation instrument transducers.

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Heads

  • The three cabin version has a forward head and a large head compartment with shower on the starboard side. The four cabin version has a forward head, a shower compartment on starboard, and toilet/shower unit on the port side. The aft and front heads have a manual marine toilet, moulded washbasin, large mirror and chrome plated brass mixer tap with shower unit.
  • The shower has direct drainage by an electric pump

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Saloon

  • A large U-shaped settee is on the starboard side with cushions made out of foam with washable covers. A central fixed settee has a hinged stowage area underneath.
  • Further stowage is available under seats and behind backrests. Stowage lockers with doors and bookshelf above the settee.
  • The saloon table has a bottle rack in the centre and fiddles. Stainless steel mast pillar.

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Galley

  • Longitudinal shaped galley with large Corian® worktop. Double stainless steel sink.
  • Chrome plated brass mixer tap for pressurised water.
  • Cooker - three burner stove with oven and grill on gimbals.
  • Icebox with minimum capacity 100 litres. 12V electric refrigerator unit (150 litres). Stowage boxes, with separated compartments.
  • Cutlery drawer and PVC stowage baskets. Upper cabinets, one of which can house a microwave oven. Crumb tray under sole.

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Chart Table

  • Large format chart table with a hinged desk top.
  • Ergonomic wooden seat with stowage underneath. White vinyl cushion. 45° angled instrument console. Stowage under chart table with drawer. Oilskin hanging locker.

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Aft Cabin(s)

  • Double berth approximately 200cm long. 10cm thick mattress with washable cover.
  • Large hanging locker with double door and shelf above.
  • Shelf with sea-fiddle over berth. Access behind engine, oddments tray on top.
  • 250 litre fuel tank under starboard berth. 250 litre water tank under port berth.
  • Battery switches on the vertical area of the starboard berth.
  • Technical area between aft berths.

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Engine

  • Volvo 55 hp (41 kW). Sail-drive transmission.
  • Heat exchanger, anti-siphon valve. Large capacity sea water strainer.
  • Control panel close to helmsman with hour meter, engine stop and tachometer.
  • Alternator with battery isolator.
  • Fuel tank gauge on electrical switchboard.
  • Fuel filter with water separator. Emergency fuel shutoff handle.
  • Engine room ventilation blower, and two ventilation hoses. Two-blade fixed propeller.
  • Access to the engine from front and both sides. Independent engine bilge. Quality sound proofing using high density foam.

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Plumbing

  • Polyethylene tanks have a total capacity of approximately 350 litres with inspection plates and electric gauges on tanks .
  • Pressurised water system, 40 litre water heater.
  • Electric bilge pump with strainer and controls on switchboard.
  • Bilge integrated in hull and keel with easy access to strainer under floor boards.
  • Manual bilge pump operated from cockpit.
  • Drainage of shower water by pump(s) direct to the sea, easily accessible under the washbasin(s)

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Electricity

  • 12V DC system. Switchboard with circuit breakers, voltmeter, 12V outlet.
  • 1 x 100 Ah engine battery. 1 x 200 Ah house battery. Switch for each battery.

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Miscellaneous

  • 2 winch handles with holder.
  • Owner's briefcase with owner's manual

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Technical Data

Architects Umberto Felci / Patrick Roséo
L.O.A. 13,76 m
Hull length 13,45 m
Waterline length 11,91 m
Max beam 4,30 m
Light displacement (approx.): 10 426 Kg
Standard draft 2,20 m
Optional draft 2,00 m
Standard keel weight 3 000 Kg
Air draft 17,90 m
Fuel capacity 250 L
Water capacity 530 L
Engine power 55 CV (41 kW)

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Sail Area

Sail area, close-hauled 96,20 m2
Mainsail 41,20 m2
Genoa 55,00 m2

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Sail Plan

I 15,60 m
J 5,56 m
P 14,20 m
E 5,00 m
LP (140 % overlap) 7,05 m

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