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2018 JFA Yachts Long Island

Concarneau, Bretagne, France
$10,383,828 USD

NDS Evolution is this second hull in the Long Island 85 series and incorporates the main characteristics of Hull #1, namely an aluminium hull with superstructure made of composite. In their constant search for weight reduction , JFA Yachts paid particular attention to the use of light materials, including laminates on honeycomb cores, for the construction of the interior. This resulted in a lightship weight of only 56T for this 85’ performance, cruising catamaran.

Delivered in 2018, NDS Evolution was designed for circumnavigation through both poles, and has already been taken to Antarctica by her current owner. The flybridge and the cockpit can be fully enclosed and heated offering a comfortable space and the ability to enjoy the sublime but cold landscapes of the poles. Additionally, the flybridge accommodates the outside helm station and the winches as well as a lounge and sunbathing areas.

Equipped with a carbon mast and boom, NDS Evolution features a sail plan tailored for high-performance sailing together with hydraulic fittings on the flybridge which ensures she is easily handled, even with a reduced crew. Externally, the yacht offers a large aft cockpit with a relaxing seating area on starboard and a dining table on the port side, together with large sunbathing areas and a daytime toilet. In order to limit the overall weight of the boat, the use of teak was limited to the deck forward of the owner’s cabin, the aft cockpit, and the flybridge.

In terms of performance under sail, she is very quick. The sails were made by the highly respected sailmaker “Incidences” using the latest D4 membrane technology in order to combine form with stability, lightness, and longevity. NDS EVOLUTION achieves 11 knots upwind and 12 knots under gennaker at 90 , with 15 knots of true wind meaning that she is capable of very good daily averages when cruising.

French interior design house, Darnet Design, created a sophisticated yet understatedly elegant interior using natural tones.

Please contact David Johnson at (954) 763-3971 for more information.

This listing is presented by SailboatListings.com. Visit their website for more information or to contact the seller.

View on SailboatListings.com

Specs

Designers
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Builders
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Associations
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# Built
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Hull
Catamaran
Keel
?
Rudder
?
Construction
?

Dimensions

Length Overall
85 0 / 25.9 m
Waterline Length
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Beam
50 11 / 15.5 m
Draft
6 11 / 2.1 m
Displacement
?
Ballast
?

Rig and Sails

Type
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Reported Sail Area
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Total Sail Area
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Mainsail
Sail Area
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P
?
E
?
Air Draft
?
Foresail
Sail Area
?
I
?
J
?
Forestay Length
?

Auxilary Power

Make
?
Model
?
HP
?
Fuel Type
?
Fuel Capacity
?
Engine Hours
?

Accomodations

Water Capacity
?
Holding Tank Capacity
?
Headroom
?
Cabins
4

Calculations

Hull Speed
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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

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Classic formula: ?
Sail Area/Displacement
?

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.
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<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

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<40: less stiff, less powerful
>40: stiffer, more powerful
Displacement/Length
?

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
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<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
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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
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<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
?

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
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<2: better suited for ocean passages
>2: better suited for coastal cruising

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