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2005 Dufour Nautitech 40

Listed
Expired
$210,000 USD

Seller's Description

EU VAT paid! 4 double cabins and 2 single cabins, 2 bathrooms. Draft: 1.2 m, No. Cabins: 4 2 Crew, No. Berths: 8 2 (Saloon) 2 Crew, Fuel Tanks Capactiy: 2 x135 lit, Water Tanks Capacity: 600 lit Engines: 2 x Yanmar 3YM30 30 Hp Diesel, Engine wotk hours: 500 hours per engine, Private boat! Equipment: New 400 Ah battery set (Exite batteries), Depthsounder, Log-Speedometer, Wind Speed and Direction, Raymarine Plotter, Autopilot, Compass,GPS tracker,VHFRadio, CD Player, 12V Television, Cockpit Speakers, Fully Battened Mainsail, Furling Genoa (all sails are good!), 2 pieces steering Wheels, Oven, Microwave with grill function, Marine Head, Refrigerator, Battery Charger, Electric Bilge Pump, Manual Bilge Pump, Air Conditioning Webasto in all cabins and saloon too(1100 hours in it), Hot Water,Shore Power Inlet, Gangway,Swimming Ladder, Cockpit Shower, Davit(s)Tender,Cockpit Table (can be opened),Lazy Bag, Lazyjacks, Osmosis protection system from Hempel,Ice box in the cockpit table, Sunroof above the cockpit, New net (12 square meter), Electric windlass, Without any rust (it was used in sweet water on Lake Balaton), Lifting frame for catamaran and the lifting belts sold with boat in case if the customer requests.The boat is registered under the Polish flag. Owner is a private person. Boat can be handed over in Hungary (parking space is provided on Balatonfred) or Croatia (after payment)! Working Sail Area: 936.00 sq

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Specs

Designer
Mortain & Mavrikios
Builder
Nautitech Catamarans
Associations
?
# Built
?
Hull
Catamaran
Keel
None
Rudder
?
Construction
FG

Dimensions

Length Overall
39 11 / 12.2 m
Waterline Length
39 7 / 12.1 m
Beam
20 11 / 6.4 m
Draft
4 0 / 1.2 m
Displacement
16,310 lb / 7,400 kg
Ballast
?

Rig and Sails

Type
Sloop
Reported Sail Area
936′² / 87 m²
Total Sail Area
?
Mainsail
Sail Area
?
P
?
E
?
Air Draft
?
Foresail
Sail Area
?
I
?
J
?
Forestay Length
?

Auxilary Power

Make
Volvo
Model
?
HP
58
Fuel Type
Diesel X 2
Fuel Capacity
72 gal / 273 l
Engine Hours
?

Accomodations

Water Capacity
159 gal / 602 l
Holding Tank Capacity
?
Headroom
?
Cabins
6

Calculations

Hull Speed
11.8 kn
Classic: 8.44 kn

Hull Speed

The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.

Formula

Classic hull speed formula:

Hull Speed = 1.34 x √LWL

A more accurate formula devised by Dave Gerr in The Propeller Handbook replaces the Speed/Length ratio constant of 1.34 with a calculation based on the Displacement/Length ratio.

Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio.311
Hull Speed = Max Speed/Length ratio x √LWL

11.84 knots
Classic formula: 8.44 knots
Sail Area/Displacement
23.3
>20: high performance

Sail Area / Displacement Ratio

A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.

Formula

SA/D = SA ÷ (D ÷ 64)2/3

  • SA: Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay).
  • D: Displacement in pounds.
23.28
<16: under powered
16-20: good performance
>20: high performance
Ballast/Displacement
?

Ballast / Displacement Ratio

A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.

Formula

Ballast / Displacement * 100

?
<40: less stiff, less powerful
>40: stiffer, more powerful
Displacement/Length
116.7
100-200: light

Displacement / Length Ratio

A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.

Formula

D/L = (D ÷ 2240) ÷ (0.01 x LWL)³

  • D: Displacement of the boat in pounds.
  • LWL: Waterline length in feet
116.7
<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
10.8
<20: lightweight racing boat

Comfort Ratio

This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.

Formula

Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam1.33)

  • D: Displacement of the boat in pounds
  • LWL: Waterline length in feet
  • LOA: Length overall in feet
  • Beam: Width of boat at the widest point in feet
10.75
<20: lightweight racing boat
20-30: coastal cruiser
30-40: moderate bluewater cruising boat
40-50: heavy bluewater boat
>50: extremely heavy bluewater boat
Capsize Screening
3.4
>2.0: better suited for coastal cruising

Capsize Screening Formula

This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.

Formula

CSV = Beam ÷ ³√(D / 64)

  • Beam: Width of boat at the widest point in feet
  • D: Displacement of the boat in pounds
3.35
<2: better suited for ocean passages
>2: better suited for coastal cruising

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