Sigma 33 C
Description
The Sigma 33C is the cruising-oriented variant of the popular Sigma 33 series, designed by David Thomas and built by Marine Projects Ltd. (Sigma Yachts) in Plymouth, UK, primarily between 1981 and 1985. Approximately 44 Sigma 33Cs were constructed (compared to ~364 of the standard Sigma 33 OOD, for a combined total exceeding 400 boats across versions). It was developed as a more "detuned" family cruiser with easier handling for non-racing crews while retaining the solid fiberglass construction, practical 6-berth interior, and capable seaworthiness of the David Thomas lineup—some 33Cs have even completed double Atlantic crossings and competed successfully in events like the Fastnet Race.
Construction Details
| Designer | David Thomas |
|---|---|
| Builder | Marine Projects Ltd. (UK) |
| Length | 32.500 ft |
| LOA | 32.500 ft |
| LWL | 26.250 ft |
| Beam | 10.500 ft |
| Displacement | 9500 lb |
| Ballast | 3800 lb |
| Max Draft | 4.830 ft |
| Year Built | 1981 |
The standard boat dimensions
| i | 37.01 ft |
|---|---|
| j | 11.71 ft |
| p | 31.50 ft |
| e | 12.50 ft |
| p2 | - |
| e2 | - |
| i2 | - |
| j2 | - |
| I | J | P | E | P2 | E2 | I2 | J2 |
|---|---|---|---|---|---|---|---|
| 37.01 ft | 11.71 ft | 31.50 ft | 12.50 ft | - | - | - | - |
Sails
Sigma 33 C - MAINSAIL
| Luff | * 31.5 ft - (9601 mm) |
|---|---|
| Foot | * 12.5 ft - (3810 mm) |
| Leech | * 33.3 ft - (10150 mm) |
| Tack Angle | * 87.99 ° |
| Diagonal | * 33.48 ft - (10205 mm) |
| Head (inches) | * 6 in - (152 mm) |
| Area | 196.63 ft² |
| Edit in Calculator |
Sigma 33 C - JIBSAIL
| Luff | * 31.05 ft - (9464 mm) |
|---|---|
| Foot | * 15.48 ft - (4718 mm) |
| Leech | * 27.01 ft - (8233 mm) |
| Percentage LP | * 115 % |
| Length Perpendicular | * 13.47 ft - (4106 mm) |
| Deck Angle | * 12 ° |
| Area | 209.05 ft² |
| Edit in Calculator |
Sigma 33 C - GENOA
| Luff | * 36.88 ft - (11241 mm) |
|---|---|
| Foot | * 18.89 ft - (5758 mm) |
| Leech | * 34.71 ft - (10580 mm) |
| Percentage LP | * 150 % |
| Length Perpendicular | * 17.57 ft - (5355 mm) |
| Deck Angle | * 4 ° |
| Area | 323.94 ft² |
| Edit in Calculator |
Sigma 33 C - SPINNAKER
| Stays | * 36.88 ft - (11241 mm) |
|---|---|
| MidGirth | * 21.08 ft - (6425 mm) |
| Foot | * 21.08 ft - (6425 mm) |
| Perc LP | * 180 % |
| Area | 660.82 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.
Comments
