This Cape Dory is a beautiful 1980 30-foot 30 Ketch. It has been newly Re-Powered (2-8-22) with a Universal 3 cyl. 25hp - 25xp diesel engine. The owner has all documents and records to show this. The owner also has all detailed maintenance records from 1995 to now logged in a folder with diagrams and photos.
The ice box has been converted into a freezer/refrigeration. The DC system has been re-vamped with Blue Sea DC distribution panels, 4 golf cart batteries for a household bank, plus a separate starter battery.
Skywind has Stained glass windows and the seals and gaskets have been replaced and do not leak. The port lights are bronze openings with the addition of stained glass inserts to make them decorative. . She has added areas of the canvas with a pull-tight system.
The owner is also including with the purchase of this unit, extra sails. The Standard club-footed jib has been replaced with a roller furling. The Bowsprit has both a Delta and Bruce anchor; each with 40 feet of chain and 100 feet of rode.
The Top hatches have been replaced this week and I have posted new pictures to reflect this. The Dodger has been recovered/repaired this week also.
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)
(formerly listed as CAPE DORY 30 KETCH)
Also available as a cutter. (CAPE DORY 30C).
This listing is presented by PopYachts.com. Visit their website for more information or to contact the seller.
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