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Catalina 25 sailboat 1990; with 11hp diesel; standard rig, winged keel / tandem trailer $14,950
(Best year with deeper sole and raised headroom); Plus pop-top
Costa coat acrylic finish; no more waxing or UV oxidation
Trailer: tandem with 2nd hitch for an 8 realized heavy-duty extension into deeper water New tires, lights and brakes in 2021
11hp Universal diesel/ very low hours; (30 years on a tiny lake in Indiana)
Shoal draft wing keel draws 34
All new exterior trim teak
New Precision mainsail; Radial cut with full and partial battens; Genoa 135; radial cut
Two line clutches for mainsail and reefing; New whisker pole with stanchion clamps; Lazy jacks
Additional breaker panel for fans, depth finder, radio, mini-head fan, Auto-tiller
Raymarine ST2000 auto-tiller; 50w Solar panel with solar controller
Thru-hull Depth finder; New LED lights interior and exterior; New VHF radio and antenna;
Minn Kota Precision twin battery charger;
Twin wet cell Trojan 27D batteries with Victron BMV-712 monitoring
New side windows and/or new hatch seals throughout; New faucets; Small bimini;
Cushions in excellent like- new condition; interior and cockpit
Natures Head; Compostable; goes weeks; no more pump-out or odors!
Fresh water sailed only; indoor storage for 30 years; shrouds like new
Equipment: Trailer: tandem with 2nd hitch for an 8 realized heavy-duty extension into deeper water New tires, lights and brakes in 2021
11hp Universal diesel/ very low hours;
New Precision mainsail; Radial cut with full and partial battens; Genoa 135; radial cut
Two line clutches for mainsail and reefing; New whisker pole with stanchion clamps; Lazy jacks
Additional breaker panel for fans, depth finder, radio, mini-head fan, Auto-tiller
Raymarine ST2000 auto-tiller; 50w Solar panel with solar controller
Thru-hull Depth finder; New LED lights interior and exterior; New VHF radio and antenna;
Minn Kota Precision twin battery charger;
Twin wet cell Trojan 27D batteries with Victron BMV-712 monitoring
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)
The most popular sailboat (in this size range) ever built in the US.
Dimensions shown here are for the standard rig (pre-1988).
A swing keel version was also available. Draft (max.) 5.0’ (min.) 2.0’
Wing keel version: 2.83’/.86m
TALL RIG:
I: 31.0’
J: 10.5’
P: 27.66’
E: 9.58’
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