O'DAY 31

Main

Appendages
Fin w/spade rudder
Construction
FG
First built hull
1985
Hull type
Monohull
Last built hull
1988
Model
O'DAY 31
Sailboat builder
O'Day Corp.
Sailboat designer
C. Raymond Hunt Associates

Dimensions

Ballast weight
1724.0
Beam
3.28
Displacement
4581.0
Draft
1.6
Mast height from DWL
13.41
Max Draft
1.6
Overall length
9.18
Waterline length
7.8

Sails

E
3.12
Est. Forestay Length
12.77
Fore area
24.47
I
12.12
J
4.04
Mainsail area
16.07
P
10.29
Total area
40.51

Engine

Engine(s) power
14.0
Engines amount
1
Fuel tank capacity
98.0
Fuel type
Diesel
Make
Universal

Performance

Ballast ratio
37.62
Capsize Screening Formula
1.99
Comfort Ratio
24.5
Critical hull speed
6.78
Displacement-length ratio (DLR)
269.38
Upwind sail area to displacement
14.98

Accomodation

Freshwater tank capacity
95
Headroom
1.91
The O'Day 31 is a popular sailing boat that was manufactured by O'Day Corporation, a well-known American boat builder. It was designed by C. Raymond Hunt Associates and first introduced in 1977. The O'Day 31 was produced until 1984.

This sailboat is known for its comfortable and spacious interior, making it suitable for both cruising and racing. It has a length overall (LOA) of 30 feet 11 inches, a beam of 10 feet 9 inches, and a draft of 5 feet 3 inches. The displacement of the O'Day 31 is around 9,000 pounds.

The O'Day 31 features a moderate displacement hull design, which provides a good balance between stability and performance. It has a fin keel and a spade rudder, allowing for responsive handling and maneuverability. The sail plan typically includes a mainsail, genoa, and a spinnaker, providing versatility in different wind conditions.

The interior of the O'Day 31 is well-designed and offers ample headroom and living space. It typically includes a V-berth forward cabin, a main salon with a dinette that converts into a double berth, a fully equipped galley, a navigation station, and a head with a shower. The boat can comfortably accommodate up to six people for overnight stays.

The O'Day 31 is known for its solid construction and durability. It is often praised for its seaworthiness and ability to handle various weather conditions. The boat's wide beam and spacious cockpit make it comfortable for both cruising and racing purposes.

Overall, the O'Day 31 is a versatile and reliable sailing boat that offers a good balance between performance and comfort. It is a popular choice among sailors looking for a mid-sized cruiser or a competitive racer.

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