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Seller's Description

New website with more photos, a walkthrough video and extensive worklist: www.sykognita.com

Built for the rugged waters off California, this beautiful blue-water boat is ready for her next adventure! Kognita just sailed 8,400 miles from California through the Panama Canal to Rhode Island. No one ever believes she was built in 1973, she is a true modern classic! Lots of light, very spacious, and a beast in the ocean. She tracks well sailing thanks to her 3/4 length cutaway keel and attached rudder. Completely set-up for short-handed world-cruising, she holds 110-gallons of fuel, 80-gallons of water, has 370-watt solar panel and a 900-amp hour gel battery bank, 12V Spectra water-maker and a Monitor wind-vane. Shes solid, well-equipped, and gorgeous.

Purchased in 2017 by her current owners, Kognita underwent a 3-year professional refit including new awl-grip paint on decks, hull and mast, new North sails, new wire standing rigging, new rudder, fully re-wired, fully re-plumbed, new removable headliners with recessed lighting, new layer of epoxied fiberglass over the entire hull with 5 layers of epoxy barrier coat, new roller fuller staysail with self-tacking track, new cockpit cushions and lots more!

Shes currently in East Greenwhich, Rhode Island and is ready to set sail to the Caribbean and beyond! She is already measured/registered with the Panama Canal Authority and would be excited to make it to the South Pacific ( thats what her original plan was, damn covid!).

LOA: 40 ft Draft: 6ft Beam: 12.9ft Hull material: Fiberglass ( 1” thick) Keel shape: 3/4 length cutaway keel with attached rudder Cabins : 2 double berths main salon table drops down and creates another double berth Head : 1 Engine: 50 hp Kubuta marinized by Phasor Engine Hours: 1800

For more info, photos, and video check out our website: www.sykognita.com

Equipment: For all equipment- check out our website at www.sykognita.com - it has an extensive equipment/refit list.

-3-year professional refit from 2017-2020

-Sailed 8,400 nautical miles

-100 gallons of fuel / 80 gallons of fresh water

-New North Sails main & jib 2019

-370-watt solar

-12V Spectra watermaker (12-15 gallon/hr)

-900 amp/hour gel battery bank

-10ft Hypalon Achilles inflatable with aluminum floor and 9.8 Tohatsu Engine

Specs

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

Dimensions

Length Overall
39 11 / 12.2 m
Waterline Length
?
Beam
12 7 / 3.8 m
Draft
6 0 / 1.8 m
Displacement
?
Ballast
?

Rig and Sails

Type
?
Reported Sail Area
?
Total Sail Area
?
Mainsail
Sail Area
?
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
2

Calculations

Hull Speed
?

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

?
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.
?
<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
?

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

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

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

View on SailboatListings.com


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