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24ft 1988 Oday 240 Sail Boat comes with slip (Warwick, RI) for remainder of 2020 season Masthead Sloop Wing Keel LOA: 24.58 ft, LWL: 20.83ft, Beam: 8.25ft, Draft: 2.67ft, Displacement: 3,600lbs Come’s with Load-Rite 2 Axle trailer with disk brakes 9.8 Tohatsu Four Stroke Long Shaft Motor, electric start with alternator Richie Compass Garmin echo 500c Depth Finder Standard Horizon GPS CP180i Standard Horizon VHF Radio Jenson AM/FM/CD/Marine Radio Battery Charger/Small Solar Panel 30 AMP Shore Power Adapter 1 Deep cycle battery (starter) new 2020 2 AGM batteries (house) Power Selector Switch Simpson-Lawrence Manual Windless Shade Tree Fabric Shelter (over boom) Swim Ladder 2nd set of screen hatchboards Island Nautical Inc. Dodger Sink with foot pump/12 gallon tank Origo 3000 alcohol 2 burner cook top All sail controls lead aft to cockpit for solo sailing Sails all serviced by Doyle Sails in spring 2020 150 Genoa on a CDI roller furler Spinnaker with pole Main with in boom reef system 1 reef point/ Main Sail Cover Danforth Anchor Bottom paint spring 2020
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)
Reintroduced (or similar) as O’DAY 250 in 1996.
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