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1985 Carl Alberg-design that features a recent Doyle mainsail, mainsail cover and 130% headsail with uv panel (recently washed and minor repairs by the local Doyle sail loft) on a Harken roller furler that functions flawlessly, mast and boom look almost like new, all new standing rigging replaced 6 or 7 years ago except for the forestay which was replaced a year ago, bright work is in very good condition, one year old 6 HP 4-stroke Yamaha outboard with very low hours and an extended warranty, and the usual interior cushions, VHF with mast-mounted antenna, Danforth anchor, Porta-Potti and running rigging. With a long keel and 51% ballast-to-displacement ratio, sails like a bigger boat and has a smooth seakindly motion that rides on top of the waves rather than pounding through them.
Optional roadworthy 1998 dual axle custom Triad Trailer with an extension bar, four recent tires plus a new spare tire/rim/mount and new wheel bearings for an additional $3,000. Sorry but I am not interested in selling the trailer separately at this time.
Local sale includes Spring launch.
Equipment: See above
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)
Same hull as CAPE DORY 22.
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