Choate 40
Description
The Choate 40 (also known as the Choate 40 or Kaufman-designed Choate 40) is a classic West Coast performance cruiser-racer built by Dencho Marine (Dennis Choate's yard in Long Beach, California) starting in 1979 (limited production, likely 10–20 hulls total, making it rare). Designed by Scott Kaufman, it's an IOR-era masthead sloop emphasizing speed, stiffness, and offshore capability—fast in moderate to heavy air, with good upwind performance and downwind surfing potential (owners report hits of 18+ knots in strong trades with reduced sail). This model fits your pattern of Choate inquiries (e.g., alongside the Choate 27/CF-27 and 30): lightweight yet strong fiberglass construction (often with rod rigging, hydraulic vang/backstay in race configs), fin keel for efficiency, and a balance of racing pedigree with enough accommodations for coastal/offshore cruising.
Construction Details
| Designer | Scott Kaufman |
|---|---|
| Builder | Dencho Marine |
| Length | 39.330 ft |
| LOA | 39.330 ft |
| LWL | 31.250 ft |
| Beam | 12.560 ft |
| Displacement | 12700 lb |
| Ballast | 7400 lb |
| Max Draft | 6.790 ft |
| Year Built | 1979 |
The standard boat dimensions
| i | 51.79 ft |
|---|---|
| j | 16 ft |
| p | 52.20 ft |
| e | 45.04 ft |
| p2 | - |
| e2 | - |
| i2 | - |
| j2 | - |
| I | J | P | E | P2 | E2 | I2 | J2 |
|---|---|---|---|---|---|---|---|
| 51.79 ft | 16 ft | 52.20 ft | 45.04 ft | - | - | - | - |
Sails
Choate 40 - MAINSAIL
| Luff | * 52.2 ft - (15911 mm) |
|---|---|
| Foot | * 45.04 ft - (13728 mm) |
| Leech | * 67.41 ft - (20547 mm) |
| Tack Angle | * 88 ° |
| Diagonal | * 67.74 ft - (20647 mm) |
| Head (inches) | * 6 in - (152 mm) |
| Area | * 1187.51 ft² |
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Choate 40 - JIBSAIL
| Luff | * 43.36 ft - (13216 mm) |
|---|---|
| Foot | * 21.07 ft - (6422 mm) |
| Leech | * 37.87 ft - (11543 mm) |
| Percentage LP | * 115 % |
| Length Perpendicular | * 18.4 ft - (5608 mm) |
| Deck Angle | * 11.98 ° |
| Area | * 398.96 ft² |
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Choate 40 - GENOA
| Luff | * 51.49 ft - (15694 mm) |
|---|---|
| Foot | * 25.74 ft - (7846 mm) |
| Leech | * 48.54 ft - (14795 mm) |
| Percentage LP | * 150 % |
| Length Perpendicular | * 24 ft - (7315 mm) |
| Deck Angle | * 4.01 ° |
| Area | * 617.92 ft² |
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Choate 40 - DRIFTER
| Luff | * 51.49 ft - (15694 mm) |
|---|---|
| Foot | * 26.74 ft - (8150 mm) |
| Leech | * 46.39 ft - (14140 mm) |
| Perc LP | * 150 % |
| Length Perp | * 24 ft - (7315 mm) |
| Deck Angle | * 9 ° |
| Area | * 617.88 ft² |
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Choate 40 - ASYMMETRICAL
| Luff | * 51.49 ft - (15694 mm) |
|---|---|
| Foot | * 26.4 ft - (8047 mm) |
| Leech | * 47.37 ft - (14438 mm) |
| Perc LP | * 165 % |
| Area | * 1020 ft² |
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Choate 40 - SPINNAKER
| Stays | * 51.49 ft - (15694 mm) |
|---|---|
| MidGirth | * 28.8 ft - (8778 mm) |
| Foot | * 28.8 ft - (8778 mm) |
| Perc LP | * 180 % |
| Area | * 1260 ft² |
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Choate 40 - STORMJIB
| Luff | * 29.81 ft - (9086 mm) |
|---|---|
| Foot | * 11.89 ft - (3624 mm) |
| Leech | * 24.73 ft - (7538 mm) |
| Perc LP | * 60 % |
| Length Perp | * 9.6 ft - (2926 mm) |
| Deck Angle | * 19.01 ° |
| Area | * 143.05 ft² |
| Edit in Calculator |
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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