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Windsong is the unique “tall rig” version of the Catalina 250 Wing Keel. She is in great shape and ready to sail. She’s also great for spending a few days in a quiet anchorage or weekending with the family. She comes with a galvanized trailer with mast raising system (saves $400 each time you’d have to haul out). 110% Jib (2018). Gennaker and Main are in good condition. Bottom and running rigging renewed late 2017. 110V 20 amp shore power with new 2 bank charger 2017. New depth sounder 2018. Anchor chain and rode new in 2017. 9.9 HP Merc Bigfoot “sail” runs great, sips fuel, and sits on a tilt bracket that lifts the lower unit above the water while at the dock or under sail. The engine has been flushed with Salt-Away after each use. Galley has a 1 burner propane stove, SS sink with pressurized water. The enclosed head has a Thetford electric flush marine “porta-potty” new in 2017. It has a tilt up cabin top and tent. V-berth (sleeps 1-2), aft-berth (sleeps 2), plus room to sleep 1 on each of 2 settees. She’s a great boat and tons of fun to sail.
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)
Wing Keel draft: 3.42’/1.04m
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