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This boat is designed for ease of trailering and mast raising with the Mastendr System. It has a shoal draft ballasted keel for getting into those very shallow areas of about 2 feet. For sailing performance, there is a centerboard that extends to 5 feet to keep the boat close to the wind with little leeway.
Keel Type: Shoal Draft ballasted keel with foil profile centerboard Rudder: Foil Profiled Dimensions Length Overall: 21’5 ft Length Of Deck: 18’5 ft Waterline Length: 18’1 ft Beam: 7’4 ft (trailer and boat meet highway width requirements) Max Draft: 5’2 ft (Centerboard down) Min Draft: 1’6 ft Mast height above waterline: 26 feet Dry Weight: 2,200 lb Ballast Weight (in keel, not centerboard) 700 Lb. Single Berths: 2 Double Berths: 1 Heads Count: 1 Porta Potty in separate enclosure
Equipment: 2015 MagicTilt Galvanized Trailer, single axle with Bearing buddies 2018 Tohatsu 6HP SailPro long shaft Roller Furling Jib Folding swim ladder Bimini, full length cockpit cushions, and many other items too numerous to include
If you see the posting, it is still available. I will delete when the boat sells.
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)
Rig dimensions verified by builder.
Thanks to Judy Blumhorst from Hyde Sails.
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