Supersonic 27
Description
Supersonic 27 (also styled SuperSonic 27 or Supersonic MkII) is a 27-foot IOR-influenced cruiser/racer designed by Scott Kaufman (an Australian naval architect known for performance-oriented yachts). It dates primarily from the late 1970s to early 1980s (examples noted around 1979–1983, with some 1980 models mentioned). The design originated as an attempt at a powerful Quarter Tonner — one of the larger boats in that category at 27 feet — but ended up slightly outside the strict class rules. It was built in limited numbers, primarily in Australia, with some boats still sailing there today (including charters on Sydney Harbour).
Construction Details
| Designer | Scott Kaufman |
|---|---|
| Builder | Supersonic Yachts (Sydney) |
| Length | 28.200 ft |
| LOA | 28.200 ft |
| Beam | 11.500 ft |
| Year Built | 1979 |
The standard boat dimensions
| i | 32 ft |
|---|---|
| j | 10.70 ft |
| p | - |
| e | - |
| p2 | - |
| e2 | - |
| i2 | - |
| j2 | - |
| I | J | P | E | P2 | E2 | I2 | J2 |
|---|---|---|---|---|---|---|---|
| 32 ft | 10.70 ft | - | - | - | - | - | - |
Sails
Supersonic 27 - GENOA
| Luff | * 32.05 ft - (9769 mm) |
|---|---|
| Foot | * 17.37 ft - (5294 mm) |
| Leech | * 30.05 ft - (9159 mm) |
| Percentage LP | * 150 % |
| Length Perpendicular | * 16.05 ft - (4892 mm) |
| Deck Angle | * 4 ° |
| Area | * 257.18 ft² |
| Edit in Calculator |
Supersonic 27 - DRIFTER
| Luff | * 32.05 ft - (9769 mm) |
|---|---|
| Foot | * 18.09 ft - (5514 mm) |
| Leech | * 28.63 ft - (8726 mm) |
| Perc LP | * 150 % |
| Length Perp | * 16.05 ft - (4892 mm) |
| Deck Angle | * 8.97 ° |
| Area | * 257.22 ft² |
| Edit in Calculator |
Supersonic 27 - ASYMMETRICAL
| Luff | 33 ft - (10058 mm) |
|---|---|
| Foot | 18 ft - (5486 mm) |
| Leech | 30.75 ft - (9373 mm) |
| Perc LP | * 165 % |
| Area | * 446 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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