Welcome to Nordhavn.com - Power Thats Oceans Apart

Standard Machinery

Main engines: Twin Cummins QSM11DM-425 Engines rated at 425 HP @ 1800 RPM 24VDC heat exchanged (PAE to provide.)

Gear Box: ZF550 V remote "V" Drive, 2.96:1 reduction with clutchable PTO x 2

Engine Instrument Panel: Three (3) ED-3 (Electronic Digital Display) instrument panels with alarm that will monitor Tachometer, Station active, Engine oil pressure, Engine water temp, Fuel consumption GPH, System voltage, Gear oil temp, Gear oil pressure, Alarm on/off button and five step illumination control. The following display choices are available by selection from the ED-3 menu as standard: RPM, Trip fuel consumption, Engine load, Turbo boost, voltage, Fuel pressure, Fuel temp, and Fuel consumption

Alternator: Two (2) Alternators: One (1) 100 amp for starting batteries and one (1) 175 amp for the house batteries

Engine Controls: Electronic controls with brushed stainless steel finish four (4) stations: wheel house, fly bridge and aft deck, and engine room

"Air Sep" Crankcase ventilation

Two (2) 4D Batteries connected in series for 24 volt start

Engine Bed to have 1/2” (12.7 mm) polished stainless steel cap

Engine mounted on (4) vibration resilient mounts

Propeller: Hungshen 50" x -----" (127 cm x ------ cm) five (5) blade left hand rotation I.S.O. class 1

Propeller Shaft: A22HS 3-1/2" (8.9 cm) diameter x 2

Taper details: Standard SAE

Spurs line cutters on main engine shafts

Stern tube: FRP

Bearing: Rubber cutlass type at aft ends

Stuffing Box: PYI Dripless x 2

Use "T" bolt clamps in lieu of hose clamps on stuffing box

Fuel Filter: One (1) Racor 900MAX duplex with 10 micron filter elements in addition to secondary engine mounted filters (1 each engine)

Engine Cooling System

Raw water heat exchanger

2 1/2" dia. Dual Groco intake strainers x 2

To be filled with specified mixture of coolant/antifreeze

Engine Room Floors: All engine room floors and structural members to be FRP with white gel coated surfaces

Noise Control

Hull Damping - Area above the propeller rotation plane to be treated with two (2) layers of E-A-R Specialty Composites Isodamp CN Tiles (CN-62), alternating between resin and chopped glass to form a constrained layer damping system to be the inboard side of the shell plate

Engine room ceiling and aft side of fwd bulkhead, Inboard tank sides, forward side of engine room aft bulkhead to be treated with 2" (5.08 cm) 3M Thinsulate and 2" (5.08 cm) thick Soundown or equivalent before being covered with white aluminum panels by Soundown

Salon/galley and wheel house cabin sole to have 2" (5.08 cm) 'Nida Core' core system and 1/4" (6.4 mm) Soundown or equivalent "decoupler" layer

Engine room hatches to have rubber gasket and lock down mechanism

Soundown Quite Pro lining or equivalent covering engine room intake and exhaust ventilating ducts, 1” (2.5 cm) thick secured with epoxy and mechanical fasteners

Seal all holes and cracks in engine room parameter to prevent noise leakage

Insulated bulkheads in living areas with 1" (2.5cm) 3M Thinsulate

Engine Room Ventilation: (See Air Conditioning Systems and Ventilation Systems)

Wet Exhaust System

Muffler: Marine Exhaust Systems with 6" (15.24 cm) inlet flange and 8" (20.3 cm) outlet flange

Marine Exhaust Systems risers with black epoxy heat sheild coating

Generator #1

Generator Onan model #MDDCA 40 kW 120/240 volt AC 60 Hz

Wet exhaust system using gen-sep

24 volt start

Alternator: 20 amp

Install remote engine panel in the pilothouse

Generator #2

Generator Onan model #MDKBT 27.5 kW 120/240 volt AC 60 Hz

Wet exhaust system using gen-sep

24 volt start

Alternator: 20 amp

Install remote engine panel in the pilothouse

ABT Hydraulic System to include following

50 hp bow and 38 hp stern thrusters using 16" (40.64 cm) and 14" (30.48 cm) tunnels with proportional controls at three (3) stations.

Hydraulically powered anchor wash pump - 180 gallons (681 Liters) per minute

Hydraulically powered 180 gallons (681 Liters) per minute emergency bilge pump with manifold system and plumbing to five (5) bilge areas

TRAC #370 digital stabilizer system with 16 sq. ft. (3.6 sq. m.) fins and dual station control. Stainless steel kelp cutters forward of fins tied to bonding system

Two (2) Maxwell VWC 4500 windlasses with dual station controls for each. Each windlass to have band brakes

Hydraulics cooled by a hyd. cooling pump and two (2) heat exchangers. One (1) on the return side and one (1) on the case drain side

Work Bench to have swivel vise, sink and tool box in engine room

*Specifications subject to change without notice and at the discretion of designers and builders.
**Dimensions are subject to change with Buyer’s selected options and personal effects which may add to displacement and increase both draft and waterline length

Last updated: 1/20/10




Nordhavn Fleet