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The ‘Shamaness’ is a full keel, ketch rigged sailboat built in Taiwan in 1977. She was built of solid fibreglass in the hull, very heavily laid up as was the custom of the time. Blueprints list 5,000 pounds of keel ballast. I assume this to be cast iron. The hull shows no sign of water intrusion or blisters at anytime. A wineglass hull shape, makes her very sea-kindly, and her motion under sail is solid and stable. A staysail stay was added to give her better upwind performance (called a DOUBLE HEADSAIL ketch). Roomy salon and cockpit. 36 foot on deck with 4 foot bowsprit, 11’10” beam with Sitka Spruce mainmast (rebuilt with West System epoxy) and (Ballenger Spars) aluminum mizzenmast. Both booms are original Sitka spruce in very good condition. Northstar autopilot (with gyrocompass) and Octopus hydraulic ram drive, monitor windvane.
The original 3/8” teak decks are in service but need a complete re-caulking. All original deck screws were removed, treated with penetrating epoxy and re-screwed ten years ago. A few plugs now need replacing. Several areas of the deck have become “spongy” or internally delaminating. I have repaired the foredeck and area near the companionway entrance with epoxy and large teak plugs with a very satisfactory result. The various layers of deck are tied together with epoxy now. (The deck original construction was very robust with a top layer of 3/8” teak, then layer of 1/8”+ fiberglass, then 3/4” of teak plywood and an inside or bottom layer of 1/8” fiberglass).
All original portholes have been replaced with excellent quality NFM (New Found Metals) cast stainless steel opening ports.
New condition sails include storm jib and trysail. The high-cut yankee jib, staysail, full-batten mainsail were recently built by Pineapple Sails in Alameda, California and are in very good condition. The full-batten mizzensail has been used sparingly and is also in very good condition. The mizzen staysail, cruising spinnaker and genoa are older but are serviceable. The 3JH3 Yanmar 40 h.p. diesel engine has 5,000 hours running time and is in very good condition (well-maintained, never overheated, never rebuilt). The transmission gearing is 2.8:1 making a slower, more efficient motoring R.P.M. for the large right-handed propellor. This combination makes the ‘Shamaness’ an excellent upwind motor-sailing sailboat in the often steep chop found in the Sea of Cortez.
The ‘Shamaness’ engine is equipped with a 110 amp alternator and smart voltage regulator (with installed back-up heavy duty solid state voltage regulator) and 40 amp (110 volt) smart battery charger with back-up 12 amp automotive battery charger powered by Honda 1000 portable generator if needed.Two solar panels (75 amp, 60 amp) keep the batteries (4 new six volt golf cart batteries and one new 12 volt starting battery) charged at anchor for several days provided the sun shines all day. Two fuel tanks (32 gal aluminum and 25 gal fiberglass) provide plenty of diesel tankage for long voyages. Two water tanks (original stainless steel hold 100 gallons of freshwater).
The interior TEAK paneling and solid teak doors are in good condition. Cushions very nice of sunbrella new 5 years ago.
Most interior lights,the anchor light and the masthead Tricolor light are LED’s. The head is electric (West Marine brand). Two electric bilge pumps are installed on a convenient to service stainless steel “tree” lowered into the bilge…each independently wired and plumbed. There is also a manual (whale) bilge pump. A Forespar stainless steel propane three burner stove with oven and broiler is installed in the galley. A Forespar propane cabin heater warms the sailboat in moderate cold weather. The water system is pressurized with an added foot pump in the gallery sink for dishwashing with seawater.
Blue water Voyages: 1996 and 2003 Baja HaHa, Central America to Costa Rica, Hawaiian Islands, Queen Charlotte Islands, B.C. and 20 years extensive cruising in Sea of Cortez, Mexico
Currently cruising in Puerto Vallarta, Mexico. Now on the hard at Marina Seca, San Carlos, Mexico.
Offered with all cruising gear (Radar, two depthsounders, Monitor windvane, VHF radio w/ AIS receiver, dinghy, o/b motor, SSB radio w/ modem and tuner, many spares
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)
Also known as the MAGELLAN 36.
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