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Dufour 455 Grand' Large

TECHNICAL DATA

 

Architects: Umberto Felci / Patrick Roséo
Length overall: 13.76 m 45' 1"
Hull Length: 13.45 m 44' 1"
Waterline Length: 11.91 m 39' 1"
Max. Beam: 4.30 m 14' 1"
Light Displacement (approx): 10,426 kg 21,060 lbs
Standard Draft: 2.20 m 7' 3"
Optional Draft: 2.00 m 6' 6"
Keel Weight (approx): 3,000 kg 6,060 lbs
Air Draft: 17.90 m 58' 7"
Water Tank Capacity: 530 ltr 117 gal
Fuel Tank Capacity: 250 ltr 55 gal
Engine Power: 55 CV 41 kW
Versions 3/4 cabins  
CE Certification Category A  
Sail Area:    
Sail area, close-hauled 96.20 m² 1,035 ft²
Mainsail 41.20 m² 443 ft²
Genoa: 55.00 m² 592 ft²
Sail Plan:    
I: 15.60 m 51' 2"
J 5.56 m 18' 2"
P: 14.20 m 46' 6"
E: 5.00 m 16' 4"
LP (140% overlap): 7.05 m 23' 1"

CONSTRUCTION:

• Hand laminated GRP Hull.

• NPG Gelcoat with first layer of cloth impregnated with NPG resin forming an optimum barrier against osmosis.

• Inner moulded hull bottom, structural grid laminated to the hull. Hull port-lights in saloon.

• Deck in Balsa core sandwich, made by infusion process.

• Draft 2.20 m (7' 2"), 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.

Deck and 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 2 levels of lifeline.

• 6 aluminium mooring cleats. Single stainless steel chainplate for cap shrouds/aft lower shrouds. 2 chainplates for backstay.

• 2 deck fillers 1 for water and 1 for fuel.

• Mainsheet track on an adjustable traveller on coachroof.

• Boomvang.

• Genoa sheet tracks with piston lead blocks. Genoa sheet turning blocks on coaming.

• 8 sheave deck organisers for halyard returns, mainsail sheet and reefing lines. Stainless steel swan neck electric/electronic cable gland. 2 x 3 clutches on roof.

• 2 x 44.2 ST halyard winches on roof to starboard.

• 2 x 53.2 ST Genoa winches on coamings close to the helmsman.

Cockpit:

• Teak trimmed seats, GRP sole. 2 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 at hand of the helmsman on starboard side.

• Transom opens in centre by tipping helmsman’s seat giving access to the swimming/boarding platform. Gas cylinder locker in aft port seat. Life raft stowage in dedicated locker under helmsman’s seat. Cockpit shower in aft locker. Folding stainless steel bathing ladder.

Sails and 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 a 2 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, 2 reefing lines, outhaul line, Mainsheet car control line, furling line, boom vang tackle.

• Mainsail equipped with 2 broad reef bands, with battens and bag. Furling Genoa with anti-UV protection.

Ventilation and Lighting:

• Very good ventilation ensured by: 10 deck hatches with integrated ventilators, 4 opening port-lights on roof with curtains, permanent ventilation by 2 aerators ‘mushroom’ models, 2 hull port-lights as well as 4 fixed port-lights add natural light to the saloon.

• Electric lighting is provided by numerous spotlights and reading lights in a chrome finish.

Interior:

• All joinery work is finished in prime choice Moabi mahogany, with fiddles, mouldings and framings in solid wood. All cabin doors have a blocking system which keeps doors open when required. 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 vinyl.

Companionway:

• Headroom: 1.95 m (6' 4").

• Sliding companionway hatch and washboards in Plexiglas with stops and lock.

• Curved wooden steps and access to engine by lifting step case on jacks. 2 handrails.

• Dedicated stowage for the companionway door inside the boat.

Forward Cabin:

• Large side berth approx. 200 cm (6' 6") long with 10 cm (4") thick foam mattress with washable cover. Water tank of approx. 280 ltr (62 gal).

• Access to stowage locker under berth. Full length shelf with sea-fiddle over berth alongside the hull. Large hanging locker with shelves.

• Access to navigation instrument transducers.

Forward Head:

• Large head compartment with shower.

• Manual marine toilet, moulded washbasin, large mirror, chrome plated brass mixer tap with shower unit, shower with direct drainage by electric pump.

Heads:

• The 3-cabin version has a forward head and a large head compartment with shower on the starboard side.

• The 4-cabin version has a forward head, a shower compartment on the starboard side 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 electric pump.

Saloon:

• Large U-shaped settee on starboard side. Cushions out of foam with washable covers. Central fixed settee with stowage access by tipping the settee mounted on hinges.

• Stowage under seats and behind backrests. Stowage lockers with doors and bookshelf above the settee.

• Saloon table has a bottle rack in the centre and fiddles.

• Stainless steel mast pillar.

Galley:

• Longitudinal shaped galley with a large worktop in Corian®.

• Double stainless steel sink.

• Chrome plated brass mixer tap for pressurised water. Cooker 3-burner stove with oven and grill on gimbals.

• Icebox with minimum capacity 100 ltr (22 gal). 12V electric refrigerator unit – 150 ltr (33 gal). 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.

Chart Table :

• Large format chart table with hinged desk top.

• Ergonomic wooden seat with stowage underneath.

• White vinyl cushion.

• Instrument console 45° angled.

• Stowage under chart table with drawer.

• Oilskin hanging locker.

Aft Cabin(s):

• Double berth approximately 200 cm (6' 6") in length. 10 cm (4") thick foam mattress with washable cover.

• Large hanging locker with double door with shelf above. Shelf with sea fiddle over berth. Access behind engine, oddments tray on top.

• 250 ltr (55 gal) fuel tank under starboard berth. 250 ltr (55 gal) water tank under port berth.

• Battery switches on vertical area of starboard berth.

• Technical area between aft berths.

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 shut-off handle.

• Engine room ventilation blower and 2 ventilation hoses. 2-blade fixed propeller.

• Access to the engine from front and both sides. Independent engine bilge. Quality sound proofing with high density foam.

Plumbing:

• Polyethylene tanks for a total capacity of approx. 350 ltr (77 gal) with inspection plates and electric gauges on tanks.

• Pressurised water system. 40 ltr (9 gal) 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).

Electricity:

• 12 V DC System. Switchboard with circuit breakers, voltmeter. 12V outlet.

• 1 x 100 Ah engine battery.

• 1 x 200 Ah house battery. Battery switch for each battery.

Miscellaneous:

• Two winch handles with holder.

• Owner’s briefcase with owner’s manual.

Dufour 455 Interior 1

Dufour 455 Interior 2

Dufour 455 Deckplan

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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