Southerly 115
Description
The Southerly 115 is a 36.83-foot masthead sloop (with some examples fitted as cutters featuring an inner forestay) featuring the brand’s signature lifting/swing keel system, designed by Dick Carter (early models) with later input from Rob Humphreys and the Northshore Design Team. It was built by Northshore Yachts in Itchenor, UK, starting in 1984 (with production running into the early 2000s across Mk I, II, III, and IV evolutions). Exact total production numbers are not precisely published but form part of the broader Southerly range (over 1,100 boats built overall), with the 115 being a popular mid-size “go-anywhere” model; many examples remain in service today, often with updated rigging and interiors. The boat is renowned for its versatile variable-draft capability: the heavy swing keel (a substantial portion of total ballast) allows it to dry out upright on tidal flats or access shallow estuaries/creeks while providing excellent stability and windward performance when lowered. It offers solid fiberglass construction (with balsa-cored deck), comfortable center-cockpit or aft-cockpit layouts with accommodations for 6+, and a reputation as a capable coastal/offshore family cruiser that balances shoal-draft freedom with respectable bluewater potential.
Construction Details
| Designer | Dick Carter |
|---|---|
| Builder | Northshore Yachts (UK) |
| Length | 36.830 ft |
| LOA | 36.830 ft |
| LWL | 27.500 ft |
| Beam | 11.920 ft |
| Displacement | 15215 lb |
| Ballast | 7597 lb |
| Max Draft | 8.080 ft |
| Min Draft | 2.250 ft |
| Year Built | 1984 |
The standard boat dimensions
| i | 42.82 ft |
|---|---|
| j | 11.52 ft |
| p | 38.06 ft |
| e | 11.52 ft |
| p2 | - |
| e2 | - |
| i2 | - |
| j2 | - |
| I | J | P | E | P2 | E2 | I2 | J2 |
|---|---|---|---|---|---|---|---|
| 42.82 ft | 11.52 ft | 38.06 ft | 11.52 ft | - | - | - | - |
Sails
Southerly 115 - MAINSAIL
| Luff | * 38.06 ft - (11601 mm) |
|---|---|
| Foot | * 11.52 ft - (3511 mm) |
| Leech | * 39.14 ft - (11930 mm) |
| Tack Angle | * 88 ° |
| Diagonal | * 39.38 ft - (12003 mm) |
| Head (inches) | * 5.25 in - (133 mm) |
| Area | * 226.27 ft² |
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Southerly 115 - JIBSAIL
| Luff | 36 ft - (10973 mm) |
|---|---|
| Foot | 15.25 ft - (4648 mm) |
| Leech | 32.5 ft - (9906 mm) |
| Percentage LP | * 119.53 % |
| Length Perpendicular | * 13.77 ft - (4197 mm) |
| Deck Angle | * 10.42 ° |
| Area | * 247.81 ft² |
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Southerly 115 - JIBSAIL
| Luff | * 35.47 ft - (10811 mm) |
|---|---|
| Foot | * 14.88 ft - (4535 mm) |
| Leech | * 31.61 ft - (9635 mm) |
| Percentage LP | * 115.02 % |
| Length Perpendicular | * 13.25 ft - (4039 mm) |
| Deck Angle | * 12.01 ° |
| Area | * 234.99 ft² |
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Southerly 115 - GENOA
| Luff | * 42.13 ft - (12841 mm) |
|---|---|
| Foot | * 18.28 ft - (5572 mm) |
| Leech | * 40.08 ft - (12216 mm) |
| Percentage LP | * 150 % |
| Length Perpendicular | * 17.28 ft - (5267 mm) |
| Deck Angle | * 3.99 ° |
| Area | * 363.98 ft² |
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Southerly 115 - ASYMMETRICAL
| Luff | * 42.13 ft - (12841 mm) |
|---|---|
| Foot | * 19.01 ft - (5794 mm) |
| Leech | * 38.76 ft - (11814 mm) |
| Perc LP | * 165 % |
| Area | * 601 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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