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Shell Schooner Catamaran 18, 2017 and trailer This boat never ceases to turn heads. Great day sailor/overnight camping boat designed by Fred Shell boatworks of St. Albans, VT. Asking $12,500 obo. Fun aft cabin for sleeping or retreating from the weather. Large cushioned fore deck for Sunning, lounging and/or sundowners! Make: Shell Boats Model: Schooner Cat 18 Year: 2017 Condition: very good used boat Material: Marine plywood and epoxy
LOA: 18ft Beam: 8ft Draft: 15 inches Weight: Approx. 1200lbs Location: Melbourne, Florida Keel: fixed along full length of pontoons with stainless steel skid plate along full length of keel Helm: wheel, located in cabin Sails: sprit rig, white with red accent. Super easy to reef sails by rotating masts. Masts: Free standing. 24ft and 18ft Aux power: 2018 4-stroke Tohatsu 9.8 with remote shifter/throttle and electric tilt. 6 gallon fuel tank. Four step stainless steel boarding ladder located on bow
Trailer: galvanized Loadrite trailer. Brand new class C tires and new upgraded springs New class C spare tire and tire rack Battery: new AGM Can be towed by small SUV’s Rigged and launched in less than 15 min. Watch the video of launching one of these boats can be found on Shell boats website https://youtu.be/q6HjjrrvQIc
This is a fun little shallow draft boat your family will love. A unique and rare find. Please don’t hesitate to ask any questions.
or phone 321-419-3202
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)
Though he had already designed a number of successful catamarans, (including the first Little Americas Cup winner, ‘Hellcat’), Rod MacAlpine-Downie gave his business partner, Dick Gibbs, credit as the designer of the SHARK. Early boats were also built by Gibbs.
The first SHARK gained notice by winning the ‘Yachting’ One-of-a-kind regatta of 1963, held in Miami, FL (USA).
A unique feature of the SHARK catamaran is it’s ability to be folded down the middle, allowing it to be towed using a standard width trailer.
This listing is presented by SailingTexas.com. Visit their website for more information or to contact the seller.
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