O'Day

O’Day 27

Monohull

1972–1979

Length
8.23 m
Beam
2.74 m
Draft
1.22 m
Sail area
31.59 m²

Specifications

29 specifications
Dimensions & displacement7
Length overall
8.23 m
Waterline length
6.93 m
Beam
2.74 m
Draft
1.22 m
Displacement
3,039 kg
Ballast
1,012 kg
Mast height above water
11.73 m
Sails & rig9
Rig type
Sloop, masthead rig
Sail area
31.59 m²
Mainsail area
12.68 m²
Foresail area
18.96 m²
Foretriangle height (I)
10.67 m
Foretriangle base (J)
3.55 m
Mainsail luff (P)
8.99 m
Mainsail foot (E)
2.82 m
Forestay length
11.24 m
Hull & construction3
Hull material
Fibreglass
Keel type
Fin keel, skeg-hung rudder
Ballast material
Lead
Production & design4
Production started
1972
Production ended
1979
Hulls built
720
Designer
Alan P. Gurney
Performance ratios6
Sail area / displacement
15.35
Displacement / length
254.03
Ballast / displacement
33.3 %
Comfort ratio
23.09
Capsize screening
1.91
Hull speed
6.39 kn

Yacht photography

2

Years, generations and variants

O’Day 271 generation

01

1972–1979

O’DAY 27

Discontinued