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The Catalina Expo 12.5 is a fun machine. Thanks to the SmartRig and Hoyt boom, getting underway has never been this quick and easy! There are no stays, no chainplates, and no halyards. Putting the boat away is also a snap, as both mast and boom are deck-stepped and removable by hand, without any tools, in minutes. This is one boat every member of the family and friends will want to sail all day long. Highly efficient hull forms produce handling that is light and consistent. Forward sections of the 12.5 have a deep V shape and quickly transition to a flat section aft. This design produces fast acceleration with predictable handing through all points of sail. The tapered one piece carbon fiber mast means more sail power, with less weight aloft. The rotating SmartRig mast acts as a reefing line and furling drum to shorten or increase sail effortlessly. The same line even rolls the sail completely around the mast for storage. The Expo 12.5 has a seat across the cockpit, perfect for a crew member who is just learning to sail, or just wants a comfortable place to enjoy the ride. Best of all the Expo 12.5 is a Catalina and is built with the same quality materials and attention to detail as every other model we build. Standard items include a one-piece fiberglass deck with molded-in non-skid and hand laid fiberglass hull. Full flotation inside the hull means the 12.5 is virtually unsinkable. The Expo 12.5 is perfect for the new or experienced sailor who want a great handling sailboat that is non-technical. Simple to rig, exciting to sail, the 12.5 is all about fun on the water.
Equipment: Titled Trailer. Roller Furling Mainsail Light weight 2 piece mast Very good colorful sail. Red, White, and Blue.
Pictures of the actual boat this afternoon when the rain stops..
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)
Features carbon fiber SmartRig® and Hoyt boom.
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