Seller's Description
This Oday 30 is a sturdy, easy to sail and well equipped coastal cruser. It is currently moored in Fairhaven, Mass. and ready to be sailed. Includes mooring fee for the 2023 season. Seller Contact info: danbour@live.com or text to 281-902-2319
Equipment: Equipment: 3 sails; Main, Genoa on Schafer roller furler and Asymmetrical Spinnaker Hutton Arco self-tailing winches Extensive Schafer deck hardware and sailing gear Keel with retractable centerboard Tiller steering Engine: Yanmar 3YM20 Diesel , appx. 500 hours Fuel Tank 18 gal. Water Tank 30 gal Holding tank 15 gal. Electrical: 210 Amp. Hr. House bank, plus separate 72 Amp. Hr. Starting battery 200 watt solar array with 30 Amp. Charge controller 12 volt refrigerator/freezer plus 4.5 cu ft. icebox VHF radio with remote microphone AM/FM/CD radio with remote cockpit controls Chartplotter with depth sounder LED and Fluorescent lighting Butane stove and rail-mounted propane grill Swim ladder
Specs
- Designer
- Raymond Hunt (C.R. Hunt & Assoc.)
- Builders
- Bangor Punta Corp.
- O'Day Corp.
- Associations
- ?
- # Built
- 356
- Hull
- Monohull
- Keel
- Fin
- Rudder
- Spade
- Construction
- FG
Dimensions
- Length Overall
- 29′ 11″ / 9.1 m
- Waterline Length
- 25′ 5″ / 7.8 m
- Beam
- 10′ 11″ / 3.4 m
- Draft
- 4′ 11″ / 1.5 m
- Displacement
- 10,500 lb / 4,763 kg
- Ballast
- 4,200 lb / 1,905 kg (Lead)
Rig and Sails
- Type
- Sloop
- Reported Sail Area
- 441′² / 41 m²
- Total Sail Area
- 441′² / 41 m²
Mainsail
- Sail Area
- 173′² / 16.1 m²
- P
- 33′ 9″ / 10.3 m
- E
- 10′ 2″ / 3.1 m
- Air Draft
- 43′ 11″ / 13.4 m
Foresail
- Sail Area
- 268′² / 24.9 m²
- I
- 39′ 9″ / 12.1 m
- J
- 13′ 5″ / 4.1 m
- Forestay Length
- 41′ 11″ / 12.8 m
Auxilary Power
- Make
- Universal
- Model
- ?
- HP
- 16
- Fuel Type
- Diesel
- Fuel Capacity
- 26 gal / 98 l
- Engine Hours
- ?
Accomodations
- Water Capacity
- 25 gal / 95 l
- Holding Tank Capacity
- ?
- Headroom
- ?
- Cabins
- 2
Calculations
- Hull Speed
-
7.2 kn
Classic: 6.76 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
-
14.7
<16: under powered
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
-
40.0
>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
-
285.2
200-300: moderate
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
-
25.4
20-30: coastal cruiser
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 ocean passages
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
A keel/cb model was also available.
Draft (board down): 7.18’ / 2.19m
Draft (board up): 3.50’ / 1.07m
Displacement: 11,000 lbs / 4,990 kg
Ballast: 4,700 lbs / 2132 kg
Tall Rig:
I: 41.50’ / 12.65m
J: 13.50’ / 4.11m
P: 35.50’ / 10.82m
E: 10.25’ / 3.12m
Reintroduced (with extended stern) as O’DAY 31 (1985).
Similar to the RANGER 30.
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