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4th owner of well cared for boat, retiring from sailing. Much documentation including original Owners Manual. Currently moored in a marina, ready to sail.
Equipment: Hood roller furling, lazy jacks, swim ladder, 3 burner LPG stove w/oven, water heater, engine room heater, hot/cold pressure water, Edson wheel w/compass, knot log, depth sounder, and folding teak cockpit table, bimini, SS charcoal grill, AM/FM/CD player, VHF radio, Harken single line reefing, all lines led to cockpit, battery charger, VHF radio, companionway/hatch screens, opening ports in salon and head, shore power cord, self- tailing primary winches, new fresh water pump, micro wave oven, and an air conditioner with remote.
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)
Differing from the earlier MkI & MkII models:
The NEWPORT 30 MkIII is more cruising oriented. Wheel steering and diesel power was included as standard equipment.
Shoal draft: 4.00’/1.22m
Tall Rig:
I: 43.00’ / 13.11m
J: 12.50’ / 3.81m
P: 37.00’ / 11.28m
E: 10.30’ / 3.14m
SA(Fore.): 268.75 ft2 / 24.97 m2
SA(Main): 190.55 ft2 / 17.70 m2
Sail Area (100% fore+main triangles): 459.30 ft2 / 42.67 m2
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