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Catalina 30, tall rig, 1985 Hull number 4254, fin keel (53 draft) Universal M25 engine, oil changed every year, runs strong! 2020 Impeller,changed every other year. New sun cover on Jib 2019 ablative bottom paint, 120 ac volt 8000 BTU room/portable air conditioner, New cutlass bearing, 2 batteries including house battery 195 ah rating, 750 watt inverter, Steering cable replaced, New main sail cover, replaced toilet pump internals 2018 Dorm fridge 120 ac volt, New cockpit cushions, windows rebedded 2017 Wet exhaust hose replaced 2016 25 watt solar panel, helps maintains battery when cruising Bimini, dodger, 1 head with shower, double stainless steel kitchen sinks, natural gas 2 burner stove and oven, ice box, stereo and speakers, fans, knot meter, depth meter, hand held vhf radio, vhf radio at navigation table, captain’s chair, table insert, life sling and jacket, assorted parts and tools, chain 50 ft and plow anchor. AVON inflatable 8.6 ft. dinghy included Surveyed in 2014 and complete prior service records. Very competitive in Willoughby Thursday night races! Great boat to cruise the Chesapeake bay in!
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)
Similar to earlier CATALINA 380 > CATALINA 387 with updated interior.
Tall rig:
I: 54.00’/16.46m
J: 14.67’/4.47m
P: 47.92’/14.61m
E: 15.67’/4.78m
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