1986 Catalina 30 (HID CTY4645F0686) documented I am the third owner of this vessel. I bought her in 2009. I brought her back from the near dead. I have already done the heavy lifting. As such shes fully found and operational. While total engine hours are unknown, during my ownership I have put maybe twenty hours on it annually. The engine by the way is a marinized Kubota D-850. Most parts can be bought at farmer prices from tractor dealers. The engine has no known issues, does not burn oil and has never not started. The current batteries (2) are from 2018 and 2019 respectively and have no known issues. I bought her to be a coastal cruiser (home based at Bostons south shore). You should approach her on the same basis. Thus, I took out the non-functional mechanical refrigeration. With more insulation added, the ice box is an actual icebox. There is a newish autopilot (maybe 50 hours of use over four years). Otherwise the only nav electronic that works reliably is the depth sounder. My wet finger works fine for wind direction while also drying off my finger. Where I am, where I want to go and as a secondary depth sounder, Navionics on my tablet works well enough. She has sailed between Block Island on the one hand and mid-state downeast Maine on the other hand (though not all at once) with no issues. The sails are in fine shape, the roller furler works without a hassle and the engine starts on demand. All photos are of recent vintage and accurately reflect current conditions. Presently the boat is on the hard. Hull sanding has been completed. New bottom paint awaits a day closer in to relaunch date. A statement of the current condition is available on request.
Equipment: Basic Catalina equipment, main and genoa, newer canvass including bimini cover, main stack pack cover and genoa UV guard, Raymarine autopilot.
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)
BMW diesel (9hp) offered as an option.
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