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Just uncovered! 1987 Nonsuch Classic
The Nonsuch 30 is a coastal cruiser, with a generous cockpit, shallow draft and well-ventilated interior making it an ideal cruiser for Lake Ontario and beyond. The rig is very simple, and there are fewer things to maintain.
This Nonsuch with it’s black haul and beige canvas looks very sharp on the water. A new electric windlass was installed in 2019, as well as an electric winch in the cockpit, that is handy for many purposes, besides raising the sail. Also included is a brand new BBQ for the rail.
The boat will launch in the next fews. If you’d like to book an appointment to get see it before it goes in water, please reach out.
Equipment: Electronics Depthsounder Log-speedometer Wind speed and direction Autopilot GPS VHF Cockpit speakers
Inside Equipment Battery charger Hot water Oven Marine head Refrigerator
Electrical Equipment Shore power inlet
Outside Equipment/Extras Swimming ladder Electric windlass
Covers Bimini Top Mainsail cover Cockpit cover
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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