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With a PHRF 84 rating, the Johnstone design and Tillotson Pearson build, renowned J/Boats quality and performance. The interior accommodations sleep 6 plus 2 optional pipe berths. J/36 boats are easily sailed, offering very large interior volume and stay ahead of weather into your destination port. Low freeboard and wide decks make this “J” an accomplished cruising boat, rated as an offshore racer/cruiser. The large mainsail invites comfortable, easy, cruising under mainsail alone. With a compact galley and enclosed head, the large main saloon with teak interior provides significant volume, 11.76’ beam and 6’1” headroom. Shrouds are rod rigging with forestay head-foil, covers for both mainsail and wheel, winches cleaned and greased, and nearly new settee cushions. Recently installed ‘V’ berth and stern berths w/storage space. 12 sails-Carbon, Kevlar, and Dacron, encourage the perfect sail combination for wind conditions. Yanmar 3GMD 20hp diesel starts quickly and runs very well-Extra transmission is available. New exhaust canister, mixing elbow, thermostat, H2O impeller. Electronics include Garmin chart plotter, Simrad auto helm, depth sounder, VHF, 30amp shore power, and large leather wrapped wheel, Kuuma BBQ. A companionway dodger frame is also included. 2021 three new batteries, starter, polycarbonate windows, bottom paint, bi-annual zincs and scrub. Additional uninstalled equipment included: Force 10 stove and Webasto diesel heater, Lazy Jacks mainsail system. Danforth style anchor, chain, and line ground tackle, complete Safety equipment, bosuns chair, and more. Short-term moorage.
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.
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
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.
SA/D = SA ÷ (D ÷ 64)2/3
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.
Ballast / Displacement * 100
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.
D/L = (D ÷ 2240) ÷ (0.01 x LWL)³
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.
Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam1.33)
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.
CSV = Beam ÷ ³√(D / 64)
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