O'Day 40 (Hulls 1-134)

Description

The O'Day 40 (Hulls 1-134) is an American-built cruiser-racer sailboat designed by C. Raymond Hunt Associates and produced from 1986 to mid-1987 by O'Day Corp. (under Lear Siegler Marine) in Fall River, Massachusetts, as the initial production run featuring a standard masthead sloop rig—prior to the taller configuration introduced on hull #135—balancing solid coastal seaworthiness, generous liveaboard volume, and respectable performance for couples or small families on passages or club racing with an average PHRF handicap around 114 signaling cruiser-racer capability. Constructed from balsa-cored fiberglass with a fin keel and spade rudder for agile handling (standard 6.3-foot draft or optional shoal 4.9-foot version), it displaces 18,500 pounds with 6,600 pounds of lead ballast, measures 39.58 feet LOA, 33.50 feet LWL, 12.60 feet beam, achieving a hull speed of 7.76 knots and approximately 704 square feet of sail area under its Bermuda configuration (I=50.6 ft, J=15.2 ft, P=44.3 ft, E=13.25 ft) powered by a reliable 40 HP Yanmar or Westerbeke diesel engine with 40 gallons of fuel and 80 gallons of water capacity for extended motoring. Renowned for its conservative sail area/displacement ratio of 16.16, comfortable 6'2" headroom in a teak-trimmed interior boasting two double cabins (V-berth forward and aft owner's suite), a large U-shaped galley, nav station, enclosed head with shower, and convertible saloon sleeping up to six, plus a walkthrough transom and wheel steering for easy cockpit access, the O'Day 40 hulls 1-134 represent the foundational 134 units of a limited series totaling around 100 before the yard's closure, enduring as a sturdy, low-maintenance classic for sailors valuing Hunt's timeless lines, forgiving stability, and surprising interior spaciousness over outright speed.

Construction Details

Designer C. Raymond Hunt Associates
Builder O'Day Corp.
Length 39.580 ft
LOA 39.580 ft
LWL 33.500 ft
Beam 12.600 ft
Displacement 18500 lb
Ballast 6600 lb
Max Draft 6.300 ft
Min Draft 4.900 ft
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The standard boat dimensions

i 50.62 ft
j 15.21 ft
p 44.30 ft
e 13.25 ft
p2 -
e2 -
i2 -
j2 -

Sails

O'Day 40 (Hulls 1-134) - MAINSAIL

Luff * 44.28 ft - (13497 mm)
Foot * 14.17 ft - (4319 mm)
Leech * 45.75 ft - (13945 mm)
Tack Angle * 88 °
Diagonal * 46.02 ft - (14027 mm)
Head (inches) * 6 in - (152 mm)
Area * 323.18 ft²
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O'Day 40 (Hulls 1-134) - JIBSAIL

Luff * 42.28 ft - (12887 mm)
Foot * 19.94 ft - (6078 mm)
Leech * 37.09 ft - (11305 mm)
Percentage LP * 114.99 %
Length Perpendicular * 17.49 ft - (5331 mm)
Deck Angle * 11.97 °
Area * 369.77 ft²
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O'Day 40 (Hulls 1-134) - GENOA

Luff * 50.21 ft - (15304 mm)
Foot * 24.4 ft - (7437 mm)
Leech * 47.42 ft - (14454 mm)
Percentage LP * 150.03 %
Length Perpendicular * 22.82 ft - (6956 mm)
Deck Angle * 4.02 °
Area * 572.86 ft²
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O'Day 40 (Hulls 1-134) - GENOA

Luff 49.75 ft - (15164 mm)
Foot 21.25 ft - (6477 mm)
Leech 46.5 ft - (14173 mm)
Percentage LP * 130.24 %
Length Perpendicular * 19.81 ft - (6038 mm)
Deck Angle * 4.47 °
Area * 492.84 ft²
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O'Day 40 (Hulls 1-134) - DRIFTER

Luff * 50.21 ft - (15304 mm)
Foot * 25.33 ft - (7721 mm)
Leech * 45.37 ft - (13829 mm)
Perc LP * 150.03 %
Length Perp * 22.82 ft - (6956 mm)
Deck Angle * 9 °
Area * 572.87 ft²
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O'Day 40 (Hulls 1-134) - ASYMMETRICAL

Luff * 50.21 ft - (15304 mm)
Foot * 25.1 ft - (7650 mm)
Leech * 46.19 ft - (14079 mm)
Perc LP * 165 %
Area * 945 ft²
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O'Day 40 (Hulls 1-134) - SPINNAKER

Stays * 50.21 ft - (15304 mm)
MidGirth * 27.38 ft - (8345 mm)
Foot * 27.38 ft - (8345 mm)
Perc LP * 180 %
Area * 1169 ft²
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O'Day 40 (Hulls 1-134) - STORMJIB

Luff * 29.07 ft - (8861 mm)
Foot * 11.25 ft - (3429 mm)
Leech * 24.28 ft - (7401 mm)
Perc LP * 60.03 %
Length Perp * 9.13 ft - (2783 mm)
Deck Angle * 19.02 °
Area * 132.71 ft²
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Disclaimer. Boats are not all the same -- even when produced in the same factory of the same model. Sailrite does its best to publish accurate dimensions, but we often find it worthwhile to have our customers measure their boats carefully before we produce kits for them. You should take the same precautions, especially when the data is not from Sailrite. The information on this site is not guaranteed to be accurate. Sailrite offers this content as a service to our community, but takes no responsibility for the reliability of the data provided.

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