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Nonsuch 30 with a rare combination of the preferred Ultra layout, with private queen berth forward, and shallow draft of 4 ft, so you can enjoy quiet anchorages at night. The condition is very good, with light use and Nonsuch’s famous quality construction.Fresh water for it’s entire life. With its 12 ft beam the interior is huge especially for a 30 ft length. There is a full galley with fridge , stove and hot and cold pressure water. The head has a separate shower with seat and manual toilet. The rig is stayless and simple to reef and sail upwind and downwind, with no sheets to change sides and all lines to reef, control and raise and lower the sail leading to the cockpit.
Equipment: Mainsail very good condition, 27 HP Westerbeke diesel with 4 cylinders for smooth running and only 1200 hours. New Davits. Ray Marine auto pilot and depth. Full cockpit enclosure. The boat is ready to be your cozy cabin on the water at night and your solid safe sailor in the day.
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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