Seller's Description
1979 O’Day 25 sailboat and trailer for sale which has a fixed keel/centerboard. This feature is great for maintaining stability and pointing ability with the benefit of a shallow draft with board up. It has a very roomy interior and good headroom for this size boat. Installed new marine plywood chainplate bulkheads, many deck core repairs completed and finished. Fresh paint on topsides and hull. New mailsail (never used), 150% roller furled genoa, 100% jib. Danforth anchor, new anchor rode, 3 fenders, Garmin GPS, Standard Horizon VHF, Plastimo compass. Includes a registered dual axle trailer with new axles and electric brakes and new 2 5/16 coupler. Many miscellaneous parts included. All led navigation lighting, 6hp Tohatsu long shaft 4 cycle outboard with remote tank in excellent condition. Removed all bottom paint, epoxy barrier coats applied and new bottom paint applied. New boot stripe, refinished tiller, and refinished handrails. 2 interstate 12 volt batteries very good condition. West marine 2 bank battery charger. New centerboard pivot pin and support hardware. New port gaskets and ports have been rebedded. Includes new material for cushion recovering and accent pillows. Interior work nearly complete. Standard O’Day ice box, no head or porta potty. 20 gallon fresh water tank. Standing rigging in very good shape. Running rigging good shape. This is a great boat for day sailing or weekend cruiser. Sleeps 2-4. Asking $7000.00
Equipment: see above
Specs
- Builders
- Bangor Punta Corp.
- O'Day Corp.
- Associations
- ?
- # Built
- 2898
- Hull
- Monohull
- Keel
- Stub + Centerboard
- Rudder
- ?
- Construction
- FG
Dimensions
- Length Overall
- 25′ 0″ / 7.6 m
- Waterline Length
- 20′ 11″ / 6.4 m
- Beam
- 8′ 0″ / 2.4 m
- Draft
- 2′ 3″ / 0.7 m — 2′ 5″ / 0.8 m
- Displacement
- 4,010 lb / 1,818 kg
- Ballast
- 1,830 lb / 828 kg (Lead)
Rig and Sails
- Type
- Sloop
- Reported Sail Area
- 269′² / 25 m²
- Total Sail Area
- 269′² / 25 m²
Mainsail
- Sail Area
- 110′² / 10.2 m²
- P
- 24′ 6″ / 7.5 m
- E
- 8′ 11″ / 2.7 m
- Air Draft
- ?
Foresail
- Sail Area
- 159′² / 14.8 m²
- I
- 29′ 11″ / 9.1 m
- J
- 10′ 7″ / 3.2 m
- Forestay Length
- 31′ 9″ / 9.7 m
Auxilary Power
- Make
- ?
- Model
- ?
- HP
- ?
- Fuel Type
- ?
- Fuel Capacity
- ?
- Engine Hours
- ?
Accomodations
- Water Capacity
- ?
- Holding Tank Capacity
- ?
- Headroom
- ?
- Cabins
- 2
Calculations
- Hull Speed
-
7.4 kn
Classic: 6.14 kn
Hull Speed
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.
Formula
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
- Sail Area/Displacement
-
17.1
Sail Area / Displacement Ratio
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.
Formula
SA/D = SA ÷ (D ÷ 64)2/3
- SA: Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay).
- D: Displacement in pounds.
- Ballast/Displacement
-
45.5
>40: stiffer, more powerful
Ballast / Displacement Ratio
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.
Formula
Ballast / Displacement * 100
- Displacement/Length
-
193.3
100-200: light
Displacement / Length Ratio
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.
Formula
D/L = (D ÷ 2240) ÷ (0.01 x LWL)³
- D: Displacement of the boat in pounds.
- LWL: Waterline length in feet
- Comfort Ratio
-
17.4
<20: lightweight racing boat
Comfort Ratio
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.
Formula
Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam1.33)
- D: Displacement of the boat in pounds
- LWL: Waterline length in feet
- LOA: Length overall in feet
- Beam: Width of boat at the widest point in feet
- Capsize Screening
-
2.0
>2.0: better suited for coastal cruising
Capsize Screening Formula
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.
Formula
CSV = Beam ÷ ³√(D / 64)
- Beam: Width of boat at the widest point in feet
- D: Displacement of the boat in pounds
Notes
One of company’s most successful models and in production for nearly a decade.
A majority were delivered with a keel/cb, but a fixed keel version was also available (Draft:4.50’/1.37m), as was a taller rig.
I: 32.00’ / 9.75m
J: 10.60’ / 3.23m
P: 26.50’ / 8.08m
E: 9.00’ / 2.74m
Yanmar inboard diesel available as an option.
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