Nautor Swan 56 Centreboard



Designer: German Frers
Delivered: 1999
Length overall: 17.53 m
Length of waterline: 15.08 m
Beam: 4.73 m
Draft: 1.97 keel up and 3,97 keel down
Displacement: approx 19.500 kg
Ballast: approx. 6.230 kg


The hull is of single skin construction using glass/aramid hybrid fibre reinforced polyester laminate. A high proportion of the fibres are unidirectional, giving a stiff laminate with excellent strength and fatigue properties. Structural bulkheads are of marine plywood laminated to hull and deck with foam strips between. Stiffener flanges are unidirectional lay-ups over foam cores. Engine beds are of GRP. Special care is taken to assure rigid foundation and proper adhesion to hull.

Gelcoats are of weather-resistant NGA type. Topside colour is NGA 7344 dark blue. Water line NGA 2000 white, coaming stripe NGA 7344 blue, and yellow cove stripe. Bottom treated with epoxy primer for improved blistering resistance and antifouling International Micron CSC, white.

Centreboard Keel
Centerboard keel, hydraulic operated with manual back-up. Draft 1.97 keel up and 3,97 keel down. Carbon keel with lead

Mast step
The mast is stepped through the deck onto an aluminium mast step.

Of foam filled GRP with tubular tapered stock of E-glass composite.
Rudder supported by two self-aligning roller bearings.

Steering system
Steering gear sheaves provided with guards to prevent jamming. Steering quadrant bolted to rudder stock. Destroyer type stainless wheel, diameter 1500 mm, height 1100 mm. Pedestal with roller bearings and brake, and crash bar over compass. Emergency tiller stowed in lazarette.
New JP3 steering-shaft bearings installed in 2016 (new model)

Through hull fittings
Sea cocks for all through-hull connections below waterline, finished flush with outside and located in accessible positions. Inboard side of sea cocks fitted with stud long enough to take two hose clamps.

Bathing platform
Part of the transom folds out hydraulically to form a platform with ladder up to deck, and providing access to the watertight transom stowage area. Separate bathing ladder.

Deck & Windlass

Regatta deck laminate with vinylester and aramid fibre.

Genoa sheet winches; 2 x Harken B66.3 STAE
Spinnaker sheet winches; 2 x Harken B74.3 STA
Main sheet winch; 1 x Harken B56.2 STAE
Halyard winches; 2 x Harken B56.2 STA
Main sheet traveller control winch; 1 x Harken B40.2 STA

Windlass and fittings
Lewmar Ocean 2 electric anchor windlass with gypsy only on deck
Stemhead fitting and chain plats
Stainless steel stemhead fitting
Second roller on stemhead starboard side for Bruce anchor
Stainless steel main shroud chainplates bolted to reinforced mast bulkhead
Backstay chainplate attached to hull structure

Fitting for running rigging
Roller bearing lead blocks for halyards and slab reefing at mast partners
Aluminium genoa sheet tracks with two slide rod cars and two floating ball bearing cars
Double aft guy blocks
Spinnaker fore guy block on fore deck
Spinnaker sheet blocks each side
Runner blocks each side
Stowage position for runners near main shrouds
Aluminium main sheet track with ball bearing car
Three folding padeyes each side for headsail outboard sheeting
Halyard arrangement with additional halyard leadblock
Harken 3012 and three additional jammers for genoa halyards, additional genoa, Spinlock ZS1214
Additional pad-eyes, Wichard 6506, SWL 5700 kg, 2 pairs.
Anodized aluminium bowsprit, removable
Chain plate for additional forestay installed aft of forestay fitting

Other fittings
Two winch handle holders on mast, two in aft cockpit
Mooring cleats at bow and stern
Pulpit, pushpit and lifeline stanchions 600 mm high of stainless steel
Lifeline gates each side amidships, and in pushpit
Bracket on compass crashbar
Through hull fitting forward of mast for anchor chain
Gangway fitting
Wichard padeyes 6504, SWL 1750 kg, 4 pcs. for safety lines
Stainless handrail around main entrance
Wichard 6504 padeyes, 2 pcs, forward of mast for stowing of dinghy

Woodwork on deck
Laid teak in cockpits, bridge deck, cockpit seats and on side decks
Teak is glued and vacuum bagged without screws
Teak toe rail

Hatches and windows (replaced in 2012)
Goiot hatches for saloon, forward toilet and guest cabins
Sliding hatch on foredeck
Six openable portholes Goiot

Canvas work (replaced in 2012)
Sprayhood for main companionway and dodger for aft entrance
Large sprayhood for forward part of aft cockpit
Dodger for forward sliding hatch
Lazy Bag for mainsail with zipper (Elvström 2012)



All joinery work in the living area is done in accordance with the best yacht practice, using first-grade materials. Teak with hand rubbed satin finish is used for the visible woodwork. Lockable floorboards with laid teak veneer, providing access to the bilge.

Topsides where visible lined with battens.

Overhead lined with removable panelling.

Cabinets, tables, bureaus, seats, dressers etc. have rounded corners.

Doors, partitions and panelling are teak-faced plywood or foam.

Self-engaging latches with bumpers to hold doors in open position. Hanging lockers are equipped with rods and hooks, and their doors are provided with louvers. Flush door handles.

Drawers are secured with latches.

Wooden fronts for upper berth in starboard guest cabin, for berth in port guest cabin and for pilot berth in saloon.

Mosquito screens with teak frames and hinges for entrances.

Alcantara for saloon sofas and, color No. 6801.


Watertight collision bulkhead.


Stainless rails for hanging sheets on port side.

Pilot berth on starboard side.

Hanging locker with fabric door with zipper, on port side aft.

Guest cabins
Starboard side. Upper and lower berths, with locker above. Locker under lower berth. Hanging locker close to mast.


Port side
Single lower berth with drawers under and locker above. Small shelf outboard above the berth.

Main cabin
Entrance ladder with straight non-slip steps.

L-shaped sofa with table on starboard side. Table with flaps and spice-rack on top and small locker with shelves. Bookshelf and lockers outboard above sofa. Bar aft of starboard sofa.

Sofa with berth above on port side.

Teak grabrail in overhead.

Insulated and sheathed space for stove, GN Espace (2012). Stainless steel sinks. Garbage container. Front loaded 150 l refrigerator, and top loaded 135 l freezer. Counter tops of Corian.

Crockery locker and cupboard. Chest of drawers for utensils. Locker with spice rack. Teak mug and thermos bottle holder.

Chart table
On port side aft of galley with lockers and stowage for sea charts outboard.

Hanging locker forward of chart table.

Aft cabin
Entrance ladder with stowage locker under stairs.

Berth with drawers under. Upper locker forward.

Equipped with Corian 810 washbasin, mirror, telephone type shower, towel, soap and paper holder, trash bin and lockers. White GRP lining up to washbasin level. Teak gratings on floor. Additional mirror on bulkhead in aft toilet.

Engine space internally sound insulated, fire resistance meeting SOLAS B-15 requirements.
Drip tray integral with engine bed.

Main engine
Yanmar 4JH2-UTBE turbocharged and intercooled marine diesel, output 71 kW/96HP at 2600 rpm, with reverse/reduction gear 3.3:1.

Pressure shaft bearing, Aquadrive CVA 20300.

Exhaust system
Wet exhaust system with fiberglass silencer, discharge through transom. Silencer provided with drain tap.

Cooling system
Thermostat-controlled fresh water cooling with heat exchanger on engine. A separate heat exchanger for the consumable fresh water is included in the same circuit making hot water available whenever the engine is running. Seawater intake with strainer. Discharge through exhaust system.

Fuel system
Fuel capacity 400 l (105 US gallons), in two tanks with gauges + 180 l in two tanks with gauges) 580 l in total. One filler line for each tank. Double Separ KWA-50 fuel filter/water separator with water alarm and shutoff valve on feed line to engine, and a single filter for diesel generator. Tanks are vented to deck edge.

Starting system
The engine has its own starting battery
Engine cockpit controls
Engine control ON/OFF
Single lever control of throttle and gear shift
Control light for starting and service battery charging
Coolant temperature with alarm
Oil pressure with alarm
Tachometer with hour meter

Stern gear

Propeller shaft made of high-tensile corrosion resistant steel. Drip-free shaft seal. Shaft supported by rubber bearing at bracket. Three-bladed Max-Prop feathering propeller diameter 590 mm.

Bow Thruster

Max Power retractable bow thruster with separate batteries and battery charger.


Sea water hoses of reinforced PVC tubing, fresh water hoses of nylon tubing. Fuel and water tanks of welded stainless steel provided with baffles, inspection cover, sounding plug, and vent pipe. Shower sump tanks of GRP, integral with the moulded floor liner.

Fresh water system
New water cranes and shower hoses installed (2012)
Hot and cold pressure water with back-up foot pumps in galley
Water capacity 540 litres, in four tanks with gauges.
One filler line from deck terminating at valve chest under saloon floor.
Tank vent pipes terminate at galley sink
Single lever mixing faucets type Oras for washbasins and galley sinks
Fresh water foot pump in toilets, 2 pcs.
The consumable water can be heated either with engine cooling water, or with a heating element working on AC.
Hot water tank capacity 40 litres (10.5 US gallons).

Watermaker, PUR Power Survivor –80, 24 V

Seawater system

Sea water spout with foot pump in galley and in toilets.

Deck wash installed under foredeck hatch.

Drainage system

Galley sinks drained through sea cock.

Washbasin and shower trays drain to sump tanks, capacity about 60 l (16 US gallons) each. Sump tanks are emptied by electrical pumps. Back-up Whale manual pumps.

Bilge pumps

Two manual Whale Titan 100 l/min (26 US gallons), one in cockpit, one below deck.

Outlets above waterline.

Additional electrical Bilge pump Jabsco (2012) with auto/manual switch mounted at steering wheel.


PAR manual toilets. Stainless steel holding tank for toilets, for forward toilet 100 l,

installed under the berth in starboard guest cabin, emptied by hand pump or deck suction line. Holding tank for aft toilet, 80 l, installed in aft cabin berth, emptied by hand pump or deck suction line.

Galley equipment

Stainless steel four-burner Alpes-Inox gas stove with gas grill.


Iceberg refrigeration unit with holdover plates for refrigeration and freezer, belted from main engine. Thermostat control enabling freezer to be used as refrigerator.

Additional refrigeration unit, Iceberg 230 V, 0,5 hp, 50/60 Hz.


Natural ventilation in cabins with Dorade box inlets. Openable deck hatches and portholes

Engine room – Air inlet with water trap, outlet with blower.

Battery boxes – Ventilated to outside of boat.

Cabin heater, Celcius 6500, for fo’c’sle, guest cabins, saloon, galley, aft cabin/nav. station, both toilets and in oilskin locker.

Air-conditioning (2012)

Mavé Airco system (2012) with 8kw Airco inverter chiller 27.300 Btu, 3 fan coil units installed in front cabins, aft cabins and saloon.

Heating (2013)

Eberspacher Hydronic M12 diesel water heater, integrated in the internal heating system.



24 V DC system with insulated return. Wires are sized to minimise voltage drop.

230 V AC is a three-wire system.

For lightning protection the headstay, backstay (unless used as SSB antenna), main shroud chain plates and mast step are grounded to ballast keel bolts with heavy cable.


One battery set 530 Ah (replaced 2013), 24 V traction type for general service. The engine and diesel generator have their own starting battery sets, 135 Ah 12 V, respective 90 Ah 12 V. All battery sets are located in ventilated GRP boxes.


12 V 12 Amp outlet at chart table

Watertight 24 V outlets in cockpit and forward of mast

230 V outlet at chart table for laptop

Lighting arrangements


One berth light over each berth, halogen dome lights overhead.

Overhead lights, Tebe 2000, brass. Two bulkhead lights Cabin 20, brass.

Dimmer for saloon overhead lights.

Red dome lights over galley and chart table

Flexible chart light

Red night lights at floor level in main cabin

Automatic light in bar locker.


Downward floodlight on forward side of mast, and spreader lights

Compass light with dimmer

Navigation lights:

Red and green side lights on pulpit

White stern light on pushpit

White bowlight on forward side of mast


The service batteries are charged by a 75 A alternator (Replaced 2013) on the main engine or by a 70 A battery charger with automatic regulation. The starting batteries are charged by an 80 A alternator on the main engine, and a 50 A alternator on the generator engine.

AC System

The AC system can be fed either by a Westerbeke 4 kVA diesel generator with sound shield, or a 230V 50 A shore power inlet provided with polarity alarm, main switch, and land connecting cable. Outlets provided with earth fault protection. Connection to battery charger and water heater resistor element.

Inverter for TV, Victron Atlas 24/300 VA.

Panels and controls


DC main panel:

Located near the navigator’s space.

Switches of trip-free circuit type.

V- and A-meters of digital type.

Main switch and fuses located near switchboard.

Switches for interior and navigation lights.

Fuel tank level gauge with selector switch.

Water tank level gauge with selector switch.

Cockpit panel:

Main engine controls, see section Engine, page 6.

Diesel generator panel:

Generator control panel with oil pressure, coolant temperature, hour and V-meter.

Galley panel:

Thermometers for refrigerator and freezer.

LPG shutoff valve remote control.

AC main panel:

Switches of trip-free circuit type, V-meter, frequency meter, A-meter, all of digital type


Compasses, clocks and barometers

Suunto 5” magnetic compass on steering pedestal.

One Quartz clock at chart table.

Sailing instruments (Replaced in 2012)

At chart table:

  • SIMRAD Control Unit
  • B&G H3000 Control Unit with Display
  • 19’ Screen
  • LEICA DGPS with separate antenna.

On compass crash bar:

  • B&G Zeus 12 plotter

Above main entrance B&G Analogue displays.

  • B&G True Wind
  • B&G Wind
  • B&G Wind CH
  • B&G Speed
  • B&G Depth

On saloon bulkhead:

  • MaxiView display Z104

Communication systems

VHF radio telephone, Shipmate RS 8300 SOS, at chart table, extra cable and plug RS 8147 in cockpit.

Entertainment systems (replaced 2012)

  • TV, Philips flat screen with Philips DVD, in saloon bookshelf, starboard side behind sliding doors.
  • Radio/CD-player in saloon, , two loudspeakers in saloon headliner, two in starboard aft cabin headliner, and two in port aft cabin headliner, Poly-Planar MA-905. Two loudspeakers in cockpit, incl. change-over switch.

Navigation system

  • Radar, B&G (2012) mounted on scanstrutt starboard aft side
  • Philips Mk 10 dGPS Professional.


Autohelm ST7002. (2012) at steeringwheel


Active antenna, Delta Pacific, for VHF, TV/FM, GSM, including Windex and light.

Digitenne (2012)




IG=22,60 m , J=6,27 m , P=20,30 m , E=6,67 m.


White painted carbon fibre Offshore Spars’ mast, athwartship spreaders, Offshore Spars’ sail track, stormsail track, two pairs of footsteps, and extra forestay fitting on mast.

Standing rigging

Aramid running backstays. Kevlar inner forestay. Series 800 rigging screws for main shrouds. Headstay and inner forestay have toggles at upper and lower end, and aluminium shroud rollers at lower end.

Furling headsail, manual, Reckmann RS 2000/40, including blocks and jammer.

Questus radar mount on backstay.

Boom and poles

Of oval, tapered section with internal outhaul led to a Lewmar 30 CST winch on boom, and arranged for slab reefing with three reefing lines and Spinlock XC clutches.

Carbon fiber spinnaker boom, white painted.

Hydraulic systems

Hydraulic boom vang with high-pressure return, hydraulic tensioner for backstay. Single gauge System 50 central control panel in aft cockpit. Hydraulic main sail outhaul in boom, Navtec flattening reef cylinder. (Hydraulic tubes replaced in 2013 – All cylinders revised in 2016)

Running rigging

Ropes braid polyester or Spectra. Main halyard with screw shackle, headsail and spinnaker halyards, topping lift, spinnaker sheets and guys with snap shackle. Internal halyards and topping lift.

Equipment and miscellaneous 

Anchoring and mooring

Bruce anchor, 30 kg, stowed on stemhead.

Fortress FX-37 anchor, installed on bracket on pushpit.

100 m 10 mm (3/8″) high-tensile chain, plaited nylon anchor line

Four mooring lines 20 m each, diameter 20 mm

Six airfenders with lines

One boat hook stowed below

Anchor light with cable and plug

Sailing gear

Winch handles: four 10″, four 10″ double grip

Bosun’s chair

Three tackles with cam cleats for holding runners and inner forestay in stowed position

Two removable cleat guards

Flag pole

Safety equipment

Fixed fire extinguisher in engine space with release handle at companionway.

Portable extinguishers in interior, one aft, one in galley, one forward.

Fire blanket in galley.

Two jackstays of webbing

Safety belts for navigator and cook

Hard weather safety lines, 1 pair

Installation of liferaft on hatch garage.


IMS certificate


  1. Elvström EPX Genoa 125% (2016)
  2. De Vries Main Max Contender
  3. North Sails Main Spectra
  4. North Sails Jib Spectra
  5. North Sails 3DL Genoa Kevlar 1LM (never used)
  6. North Sails 3DL Genoa Kevlar 2MH (Adapted for furler with UV protection)
  7. North Sails 3DL Genoa Kevlar 3 (never used)
  8. North Sails 3DL Genoa Kevlar 4 (never used)
  9. North Sails Storm Jib (never used)
  10. North Sails Trysail (never used)
  11. North Sails Spinnaker light 0,5 (never used)
  12. North Sails Spinnaker medium 0,75 (never used)
  13. North Sails Spinnaker Heavy 1,5 S-4 (never used)
  14. North Sails Gennaker
  15. De Vries Wintercover
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