Nordhavn 475

Standard Specs

Structure

Hull lamination schedule per construction plan

Vinyl ester resin used in first laminations

All exterior gel coat – white Ferro Super Shield on superstructure and Arocoat brand on hull and non-skid

Deck lamination schedule per construction plan

Core:

Cabin side (vertical surfaces): Foam Klegcell R75 or equivalent cross-linked foam

Cabin top and deck (horizontal surfaces): End grain balsa 9-12 lbs. per sq foot Baltek

Hull interior: Solid series of laminates

Deck/hull joint:

Between deck and hull flange: 3M 5200

Inside of joint:  Two (2) layers mat and woven roving

Mechanical fastening: 1/4″ (6 mm) x 20unc thru bolted on 6″ (15 cm) centers where accessible.  In areas that cannot be accessed self-tapping machine screws used

Longitudinal Stringer:

Hull: Five (5) full length port and starboard, engine beds and floor stringers – topside stringers – longitudinal and vertical

Deck: Per design

Interior floors as done on N60 – above engine room (salon) using deck beams and 2″ (5.08 cm) insulation with aluminum screening over

Ballast: Internal lead – determined at time of launch (approx. 1/2 weight of fuel)

Gel coat Color (standard boat):

Hull: Arocoat #340 Gray

Deck: Ferro White Supershield

Non-skid: CCP #A139 Lt. Gray

Boot-top and stack stripes: Arocoat #348 Dark Blue

Machinery

John Deere 4045AFM85 M2 180hp @ 2400 – 24v start

ZFW220 transmission with 3:96 to 1 reduction gear

Engine instrument panel: Deluxe with instrumentation for oil pressure, water temperature, voltage, RPM, hour meter, with alarms

Engine control levers Morse model #31001-001 Twin S

Control cables – Morse 33C Supreme length to suit

Keel cooler: Fernstrum BN1263B-E1

Alternator:  One (1) x Balmar 190 amp 24V with external regulator (see DC system)

Propeller shaft: 2″  (5.08cm) A22HS

Taper details: Standard S.A.E. taper

Propeller: 4-bladed bronze – size TBD

Stern tube: FRP

Fiberglass

Stuffing Box: Bronze

Fuel filters:  Duplex 75-900 – Racor #900 MA plus engine mounted filter x one (1)

Dry exhaust: 4″ (10.2 cm) diameter stainless steel

Flexible section: Stainless steel ‘wrinkle belly’ as needed

In line cowl muffler

Exhaust runs to head of FRP stack

Drain valve and sump at turn of exhaust to drain off water while vessel is unattended

Flexible exhaust mounts as needed

Heat insulation material: Entire exhaust system wrapped with custom exhaust blanket

Engine cooling system filled with suitable mixture of coolant/antifreeze to ensure coolant does not freeze for winter shipment

Engine room floors: Fiberglass with non-skid – minimal wood structure used within engine room

Engine room finish: Grey molded fiberglass with non-skid finish and insulated with Technitron or equivalent fire proof foiled and leaded foam 2″ (5.08 cm) thick.  All exposed insulated surfaces lined with perforated anodized aluminum sheets

Engine room blowers:

Two (2) 8″ axial fans

Two (2) Dayton exhaust blowers

Door from owner’s cabin to engine room is sound insulated with viewing port. White liner polyurethane finish. Teak veneer on stateroom side

Plumbing

Water tank:

Number and capacity: Three (3) tanks totaling 300 gallons (1135.6 liters)

Fiberglass construction using vinylester resin and FDA approved gel coat on inside of tank construction per plan – two poly tanks above

Inspection plates: Appropriately positioned for access

Two sight gauges to monitor water level in upper tanks

Each tank air tested: 4 lbs (1.81 kg) per sq. inch

Fuel tank:

Number and capacity: Two (2) main tanks totaling 1200 gallons (4542.5 liters) with one centerline aluminum ‘day tank’ at 40 gallons (151 Liters) which will gravity feed from main  tanks

Fiberglass construction with vinylester resin per plan

Inspection plates appropriately positioned for interior access by average size man.  Each internal baffle with a removable panel to allow access to entire interior of both fuel tanks

Fuel system includes an aluminum supply reservoir, which feeds by gravity from both fuel tanks.  Top part of supply reservoir holds approximately two (2) gallons (7.5 liters) and is fitted with a sight gauge with a one (1) gallon (3.5  liter) range and a 10th gallon (.4 liters) marks for fuel consumption checks (supply lines are turned off and fuel is consumed from reservoir).  Bottom part of reservoir approximately 40 gallons (151 liters) fitted with a drain off at the bottom of the reservoir for water purging and with a water sensor – illuminating a light in wheel house if excessive water is present.  Reservoir fitted with four draw spigot valves for main, generator, wing engine and spare – mounted at lower level of reservoir, but above water sensing probe.  All returns from main, wing and generator plumbed into reservoir

Sight gauges provided for both fuel tanks and are vented into the main vent system for each tank

Each tank air tested to 4 lbs (1.81 kg) per sq. inch

Baffles on 24″ (61 cm) centers

A transfer manifold and Walboro (FRB13-2) fuel pump with timer switch and Racor 900 fuel filter which can transfer fuel from one tank to another and scrub fuel while transferring.  Transfer is also used to fill top part of supply reservoir for consumption testing when main fuel tank level drops below the level of the testing part of the reservoir

Fuel pipe and hose:

Supply lines from tanks to supply reservoir are 3/4″ (1.9 cm) I.D. with Aeroquip brand fuel hose and swaged brass fittings

Fuel line from supply reservoir to main engine filter is 3/4″ (1.9 cm) I.D. with Aeroquip brand fuel hose and swaged brass fittings

Fuel lines from supply reservoir to optional generator and wing engine 1/2″ (1.27 cm) I.D. with Aeroquip brand fuel hose and swaged fittings

Vent lines are fuel certified, reinforced hose 3/4″ (1.9 cm) I.D.

Install fuel fills on side decks – as on N40 with vent lines inboard

Water hoses:

Cold water 1/2″ (1.27 cm) diameter Whale tubing system or equivalent with all Whale fittings

Hot water 1/2″ (1.27 cm) diameter Whale tubing with all Whale fittings

Sea water hoses: Trident reinforced rubber certified for marine use and provided with double stainless steel clamps below the water line

Water heater: Seaward #S1100 or Attwood (11 gallon ) (42 liters) 110 volt and heat exchanger operation

Thru hulls:  Bronze body, stainless steel balls and Teflon seats

Grounding wire: #6 gauge green wire

Each thru hull to have a clearly visible tag indicating its function

Fresh water pressure pump: #VSD31755-0000 Jabsco Sensor Max – 24v

Plumbing fixtures:

Head sinks: Sea-Land #1620 oval color white x two (2)

Galley sink: double stainless steel Polar # 102110 with 3″ (7.6 cm) drain fittings

Head faucets: Grohe Eurosmart – chrome

Galley faucets: Grohe Alira – RealSteel®

Shower fixtures: Grohe Tempesta – chrome

Fresh water spigot on fore deck – cockpit – engine room

Gray water tank:

Galley sink, head sinks, shower sumps and washing machine drain to 50 gallon (189.3 liters) sump tank.  Each drain to have an appropriate water trap to control odors.  Sump includes Sealand Tank Watch 4 level indicator and a Sealand T24 waste pump fitted with an Ultra Jr. pump switch and auto/manual control panel.  Whale/Henderson #BP0527 hand operated diaphragm bilge pump installed in line with Sealand T24 for manual pumping of gray water tank per design

Bilge pumps:

Electric: Par 34600-00 diaphragm- 24v -10.8 gallons (40.88 liters) per minute with Ultra switch auto switch

Manual: Edson model #638AL operable from main salon

High water bilge pump Rule 3700 – 24v – gallons (14,006 liters) per hour (55S) – mounted in bilge above normal bilge water height including Ultra Sr. pump switch and Ultra bilge alarm

Toilets:

Tecma Silence Plus head in owners stateroom head – 24v

Tecma Silence Plus head in guest stateroom head – 24v

Head fitted with a Par #45510-0000 Y valve allowing sewage to be pumped overboard or into holding tank

Holding tank: Fiberglass

Holding tank pump: Whale hand operated diaphragm

Holding tank fitted with a deck pump out

Sealand Tank Watch 4 monitoring system with tank master – 24v

All hoses throughout boat – Trident brand with CE approval – where practical

Two stage regulator #12301411

Trident ‘pig tail’ hoses x two (2) #1014140120

All necessary pipe fittings and adapters

Steering

Hynautic hydraulic steering system comprised of the following components:

Slave cylinder model # K-2-B (HC5373HY)

Helm pump model # H-21

Reservoir model # R-06

Relief valve MSV-21

Hydraulic lines: Hynautic brand / copper tubing

Steering wheel: 18″ (45.7 cm) stainless steel  with power knob

Emergency tiller: Attaches to top of rudder post and stows in lazarette

By-pass valve for emergency tiller steering

RUDDER

Rudder stock:  2″ (5.7 cm) stainless steel

Rudder backbone plate: 3/8″ (9.5 mm) stainless steel with lightening holes per design

Bronze rudder carrier shoe: Cast bronze per design

Rudder carrier top: Stainless steel with collar bearing per design

Rudder cutlass bearing at rudder port opening

Rudder stock stuffing box: Bronze

Rudder stock tube: Fiberglass

Electrical

Electrical panel set consisting of the following:

Electrical 110v AC/ 24v-12v DC panel

One (1) parallel switch for emergency engine/house battery paralleling

Engine battery shut off switch and panel

12v DC power for radios via a 70 amp – 24v to 12v converter.

Shore power inlet and AC system per design

Smart Plug shore power inlet- 120vac 30amp B30ASSY combo kit- includes 30amp inlet (BM30S) and 30amp connector (BF30)

120 volt 60 Hz

Isolation transformer 93-IXFMR3/6T-A

Interior outlets per drawing

All galley and head outlets GFCI protected

Battery and DC system per design

Four (4) 255+ AH (8D) Lifeline batteries in series/parallel for 24v for house appliances (510 amp hours at 24v). Two (2) 4Ds provided in series for 24v for main engine/gen starting, with ACR provided for charging from main 24VDC system. The engine starting batteries are isolated from the house batteries, which prevents the inadvertent discharge of the engine starting battery.  Main engine has single 24V 190-amp large case alternator for house.  Parallel switches provided for emergency engine starting

Each battery secured with stainless steel tie down beams

Battery cable: ’00’ for general battery leads with ‘0000’ for starting and optional bow thruster

Positive lead – red

Negative – black

All wiring used throughout boat color coded – all wire supplied by factory tinned wire

Conduits for future installations:

PVC from mast step to pilot house, these conduits – as large as possible

PVC from engine room to pilot house, these conduits – as large as possible

Electrolytic control:

All thru hulls bonded together with a #6 green wire and tied into the 24 volt DC ground system

All hardware mounted below waterline i.e. stuffing box, stern bearing housing, rudder shoe, rudder frame, rudder stuffing box grounded into 24 volt DC ground system

Zinc plates – Two (2)  2-1/2″ x 5-3/4″ (6 cm x 15 cm) zinc plates tied into the 24 volt DC ground system

AC Generator (optional)

Foundation provided within the engine room to accommodate up to a 12 kW generator

Electrical panel to accommodate AC ship’s power

60 Hz 3000 watt inverter/battery charger included with remote panel at wheel house

Inverter bypass switch

Interior Finish / Equipment

Galley

Refrigerator: U-lines: One (1) refrigerator U-1224RINT-00B all refrigerator (teak panel) + one (1) refrigerator with icemaker CO1224FINT-00B (teak panel)

Top load freezer: General Electric # FCM5SKWW or equivalent

Countertops – Surell ‘Frost’ FR02 – made by Formica

Flooring: Owner supplied tile

Cabinetry/paneling: Teak with a satin varnish

Miele electric induction cooktop and Miele single electric convection oven

Stove exhaust ss hood

Overhead: Individual padded vinyl panels secured in place with Velcro and easily removable for service

Locker interior finish: Varnished teak

Trash compactor: GE #UCG1680LSS or equivalent 15″ ss (38.1 cm)

Microwave: General Electric #PEM31SFSS ss

Overhead galley locker as shown on plans

Main salon

Floors: teak and spruce

Cabinetry/paneling: Teak with satin varnish

Dinette table: Teak

Furniture: Settees port and starboard as designed with all detail as shown in layout drawing – teak veneer with solid teak trim

Overhead: Individual padded vinyl panel secured in place with 3M industrial Velcro

Locker interior finish: Varnished teak

Cushions with vinyl upholstery

Teak valance over windows

Master cabin

Floors: teak and spruce

Cabinetry/paneling: Teak paneling – satin varnished with teak trim

Mirror on forward bulkhead

Overhead: Individual padded vinyl panels secured in place with 3M industrial Velcro

Locker interior finish: Varnished teak

Foam mattress with cotton mattress ticking

Heads

Floors: Owner supplied tile

Countertop: Surell ‘Frost’ FR02 – made by Formica

Mirrors with satin varnished frames

Shower floor: Molded fiberglass with non-skid finish

Overhead: Individual padded vinyl panels secured in place with Velcro and easily removable for service

Cabinetry/joiner work: Satin varnished teak

Locker interior finish: Varnished teak

Bi-fold shower door in owners head.  White aluminum with glass panels

Bi-fold shower door in guest head

Single sliding pocket door into owners head

Owners Head – shower sump pump – Whale Gulper 220  – 24v

Forepeak

Painted with gray gel coat

Drain to bilge through a PVC pipe installed during hull lamination

Pilothouse

Floors: teak and spruce

Cabinetry/joiner work satin varnished teak

Countertops: Black Formica

Overhead: Individual padded vinyl panels secured in place with 3M industrial Velcro

Table: Satin varnished teak

Locker interior finish: Varnished teak

Cushions with vinyl upholstery

Chart light: F4 Touch LED Task light with bulkhead base

Teak louvers on tops of console for ventilation of electronics

Chart drawer under settee

Guest cabin

Floors: teak and spruce

Cabinetry/paneling: satin varnished teak

Overhead: Individual padded vinyl panels secured in place with industrial Velcro

Locker interior finish: Varnished teak

Mattress: Foam with vinyl covering

Double berth to port / single berth to stbd

All locker doors have push button style latches

Stateroom doors teak – door hardware – Mobella

LED Lighting

Main overhead lighting throughout: Imtra ‘Hatteras PowerLED’ warm white with wall switches for each designated area (approx. 47 lights)

Bulkhead reading lights: Four (4) Imtra ‘Hobart LED’ – with switch warm white two (2) for guest stateroom and two (2) for salon

Engine room lights: Imtra LED IS60 – three (3) x 24″ (70 cm)  (#ILIS60-12/24V)

Lazarette lights: Imtra LED IS15 – two (2) x 10″ (25.4 cm)  (#ILIS15-12V)

Exterior lights: Imtra ‘Tacoma 155 LED’ cool white (2 on aft deck)

Navigation lights: Hella NaviLED Pro

Owners cabin reading lights  Imtra ‘Venice LED’ chrome warm white with white shades.  (2 total)

Courtesy lights: Imtra ‘Yukon LED’ cool white exterior and red interior

Overhead reading lights Imtra ‘Captiva LED’ with switch. Warm white (4 total)

All hand rails shown on drawing included

Air Conditioning  |  Fire Protection System  |  Lighting  |  Exterior Deck Hardware

Air Conditioning

need specs

—

Fire Protection System

need specs

—

Lighting

need specs

—

Exterior Deck Hardware

Flybridge

Engine controls: Morse model #31001-001 Twin S with Glendenning A5805 control cables

Wheel: 16″ (40.6 cm) Stainless steel wheel with steering knob

Engine control panel, horn switch, windlass control

Settee with white vinyl cushions

Todd helm chair #1500-01D  x two (2)

Stainless steel ladder to boat deck

Venturi as shown on design

All horizontal surfaces on deck have a diamond pattern non-skid as shown in deck plan.  Standard non-skid – contrasting color to parameter deck

Chocks for mooring lines:

Transom: Stainless steel with attached cleat – recessed x one (1)

Transom sides: Stainless steel with attached cleat x two (2)

Amidships: Stainless steel with attached cleat – recessed x two (2)

Bow: Stainless steel with attached cleat x two (2)

12″ (30 cm) stainless steel cleat at bow on centerline aft of windlass

Lower and upper rub rails fiberglass with a stainless steel cap – rub rails integral to hull

Port lights 

Oval 16″ x 7″ (41 cm x 18 cm) stainless steel port lights in hull as shown on design with tempered glass.  All hull port lights include stainless steel deadlights – six (6) in hull

Round 11″ stainless steel port lights in hull as shown on design with tempered glass – two (2) in pilothouse / two (2) in salon

Stainless steel double bow roller to accommodate up to a 110 lb. (50 kg) anchor on starboard roller and the port roller designed for a second light anchor or for mooring lines.  Starboard side roller slotted for chain and the port roller smooth for handling line

Stainless steel stanchions around foredeck -1-1/4″ (3.2 cm) diameter.  Pulpit 1-1/4″ (3.2 cm) diameter with 1″ (2.5 cm) socket for burgee staff

Maxwell 24 volt VWC 3500 windlass mounted on molded fiberglass base

Foredeck hatches:  One (1) Lewmar #60, one (1) Lewmar #50

Wheelhouse hatch:  One (1) Lewmar #60

Blower – One (1) inline Dayton 120 volt AC #2C647 blower to provide forced ventilation from inside of Portuguese bridge to owner’s stateroom

Dorade vents at aft end of foredeck: Molded fiberglass to service guest stateroom x two (2)

Windshield wipers – Imtra consisting of:

Roca 2-speed #RC525991 with auto park x two (2)

#EX2108 heavy duty pantograph arm x two (2)

#EX2112 mounting kit (2) #RC521115 15″ (38cm) blade x two (2)

#EX2158 switches (2) #EX2142 solenoid

#EX2184 wash jet connector (2) #EX2186 mounting plate x two (2)

#EX2119 coupling (2) #EX2166 ‘T’ fitting x one (1)

#EX2129 elbow (3) #EX2157 interior tubing x 10′ (3 m)

#EX2159 exterior tubing x 4′ (1.2 cm)

Horn: Kahlenberg K.380 – 24v

FRP Stack – 55 style stack with radar platform

Windows and doors:

Drop slide for two (2) forward salon windows – one port one stbd –  with screens and storm plate receptacles

Pilot house – N86 style glue in windows

Salon four (4) windows – N86 style glue in windows – one (1) port and one (1) stbd aft side windows – two (2) aft facing

Wheelhouse doors: Dutch doors – four hinged door with upper and lower dogs in addition to deadbolts and locksets. White powdercoated finish. Keeper to hold in open position

Salon door:   Dutch door – four (4) hinges with window and double dogs in addition to deadbolt and lockset. White liner polyurethane finish.  Keeper to hold in open position

Engine room door:  – sound insulated with view port.  White L/P finish with teak veneer on stateroom side

Transom door: Opens outboard

Boat deck rail – 1-1/4″ (3.2 cm) diameter

Deck boxes on foredeck have hinged lid with gas shocks

Corner lockers in aft deck corners

Lazarette hatch with gas shocks to hold open

Stainless steel swim ladder mounted on swim step

Three boarding doors into cockpit

Starboard side deck will allow access from the cockpit to the Portuguese bridge. A 34″ (86 cm) high stainless steel rail – provided for safety

Freeman hatch 18HAALR for access to chain locker

Davit  – WDL600 Steelhead