South Coast 23
Description
The South Coast 23 is an American 23-foot trailerable masthead sloop designed by Carl Alberg as a daysailer and pocket cruiser, first built in 1965 by South Coast Seacraft Co. of Shreveport, Louisiana. It was produced alongside the South Coast 21 and 22, with a few hundred boats completed in fiberglass (exact total not precisely documented but described as limited compared to the highly successful South Coast 22, which exceeded 3,000 units). The boat was offered in daysailer and four-berth cruiser versions, available as factory-complete or in kit form, making it an affordable entry into trailerable sailing during the 1960s–1970s boom. It features a long keel with transom-hung rudder, simple accommodations, and solid construction typical of early Alberg designs—emphasizing ease of trailering, launching, and forgiving handling for coastal daysailing or short cruises. Key features include a practical layout with modest headroom, outboard power, and a stable, seaworthy hull for its size, with many examples still actively sailed and restored today.
Construction Details
| Designer | Carl Alberg |
|---|---|
| Builder | South Coast Seacraft Co. (USA) |
| Length | 23.000 ft |
| LOA | 23.000 ft |
| LWL | 17.500 ft |
| Beam | 7.250 ft |
| Displacement | 3750 lb |
| Ballast | 1475 lb |
| Max Draft | 2.830 ft |
| Year Built | 1965 |
The standard boat dimensions
| i | 27.50 ft |
|---|---|
| j | 8.75 ft |
| p | 24 ft |
| e | 10.50 ft |
| p2 | - |
| e2 | - |
| i2 | - |
| j2 | - |
| I | J | P | E | P2 | E2 | I2 | J2 |
|---|---|---|---|---|---|---|---|
| 27.50 ft | 8.75 ft | 24 ft | 10.50 ft | - | - | - | - |
Blueprints
Sails
South Coast 23 - MAINSAIL
| Luff | * 24 ft - (7315 mm) |
|---|---|
| Foot | * 10.5 ft - (3200 mm) |
| Leech | * 25.65 ft - (7818 mm) |
| Tack Angle | * 88 ° |
| Diagonal | * 25.86 ft - (7882 mm) |
| Head (inches) | * 4.5 in - (114 mm) |
| Area | * 129.92 ft² |
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South Coast 23 - JIBSAIL
| Luff | 24.5 ft - (7468 mm) |
|---|---|
| Foot | 9.75 ft - (2972 mm) |
| Leech | 22 ft - (6706 mm) |
| Percentage LP | * 99.89 % |
| Length Perpendicular | * 8.74 ft - (2664 mm) |
| Deck Angle | * 8.6 ° |
| Area | * 107.12 ft² |
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South Coast 23 - JIBSAIL
| Luff | 23 ft - (7010 mm) |
|---|---|
| Foot | 8.33 ft - (2539 mm) |
| Leech | 20.67 ft - (6300 mm) |
| Percentage LP | * 85.14 % |
| Length Perpendicular | * 7.45 ft - (2271 mm) |
| Deck Angle | * 8.88 ° |
| Area | * 85.71 ft² |
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South Coast 23 - GENOA
| Luff | 26 ft - (7925 mm) |
|---|---|
| Foot | 13.42 ft - (4090 mm) |
| Leech | 24 ft - (7315 mm) |
| Percentage LP | * 140.46 % |
| Length Perpendicular | * 12.29 ft - (3746 mm) |
| Deck Angle | * 6.01 ° |
| Area | * 159.79 ft² |
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South Coast 23 - GENOA
| Luff | 27.083 ft - (8255 mm) |
|---|---|
| Foot | 14.83 ft - (4520 mm) |
| Leech | 26.58 ft - (8102 mm) |
| Percentage LP | * 161.26 % |
| Length Perpendicular | * 14.11 ft - (4301 mm) |
| Deck Angle | * 0.25 ° |
| Area | * 191.1 ft² |
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South Coast 23 - GENOA
| Luff | 25.083 ft - (7645 mm) |
|---|---|
| Foot | 11.83 ft - (3606 mm) |
| Leech | 23.58 ft - (7187 mm) |
| Percentage LP | * 126.17 % |
| Length Perpendicular | * 11.04 ft - (3365 mm) |
| Deck Angle | * 3.39 ° |
| Area | * 138.47 ft² |
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South Coast 23 - GENOA
| Luff | 27 ft - (8230 mm) |
|---|---|
| Foot | 12.75 ft - (3886 mm) |
| Leech | 25.25 ft - (7696 mm) |
| Percentage LP | * 135.43 % |
| Length Perpendicular | * 11.85 ft - (3612 mm) |
| Deck Angle | * 4 ° |
| Area | * 159.98 ft² |
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South Coast 23 - ASYMMETRICAL
| Luff | 28 ft - (8534 mm) |
|---|---|
| Foot | 15 ft - (4572 mm) |
| Leech | 26 ft - (7925 mm) |
| Perc LP | * 165 % |
| Area | * 315 ft² |
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South Coast 23 - SPINNAKER
| Stays | * 27.42 ft - (8358 mm) |
|---|---|
| MidGirth | * 15.75 ft - (4801 mm) |
| Foot | * 15.75 ft - (4801 mm) |
| Perc LP | * 180 % |
| Area | * 367 ft² |
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South Coast 23 - STORMJIB
| Luff | 15 ft - (4572 mm) |
|---|---|
| Foot | 7.25 ft - (2210 mm) |
| Leech | 12 ft - (3658 mm) |
| Perc LP | * 65.37 % |
| Length Perp | * 5.72 ft - (1743 mm) |
| Deck Angle | * 20.24 ° |
| Area | * 42.92 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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