Sonoma 30
Description
The Sonoma 30 is a 29.92-foot ultralight fractional sloop (ULDB-style racer) designed by Carl Schumacher (Alameda, California) and built in fiberglass by Gannon Yachts (Petaluma, California) between 1982 and 1984. Only 37 units were constructed, making it a rare, enthusiast-owned boat with a dedicated following for its speed, trailerability, and fun performance in club racing or coastal events (a "hopped-up" deeper-keel/taller-rig variant was sometimes called the Sonic 30). It features a lifting (retractable) keel for shallow-water access or trailering, a symmetrical spinnaker setup, and a lightweight, high-performance hull suited to light-air sailing with excellent stability for its displacement. Key features include solid construction for its era, a large cockpit, basic but functional interior for short cruises or racing crew, and responsive handling that rewards skilled sailors—often described as a "pocket rocket" for Bay Area or delta racing.
Construction Details
| Designer | Carl Schumacher |
|---|---|
| Builder | Gannon Yachts (CA) |
| Length | 29.920 ft |
| LOA | 29.920 ft |
| LWL | 26.920 ft |
| Beam | 10.000 ft |
| Displacement | 3750 lb |
| Ballast | 1500 lb |
| Max Draft | 6.000 ft |
| Min Draft | 2.000 ft |
| Year Built | 1982 |
The standard boat dimensions
| i | 33.50 ft |
|---|---|
| j | 10.25 ft |
| p | 33.50 ft |
| e | 12.17 ft |
| p2 | - |
| e2 | - |
| i2 | - |
| j2 | - |
| I | J | P | E | P2 | E2 | I2 | J2 |
|---|---|---|---|---|---|---|---|
| 33.50 ft | 10.25 ft | 33.50 ft | 12.17 ft | - | - | - | - |
Documents
Sails
Sonoma 30 - MAINSAIL
| Luff | * 33.5 ft - (10211 mm) |
|---|---|
| Foot | * 12.17 ft - (3709 mm) |
| Leech | * 35.09 ft - (10695 mm) |
| Tack Angle | * 88 ° |
| Diagonal | * 35.24 ft - (10741 mm) |
| Head (inches) | * 5.25 in - (133 mm) |
| Area | 203.61 ft² |
| Edit in Calculator |
Sonoma 30 - JIBSAIL
| Luff | * 28.03 ft - (8544 mm) |
|---|---|
| Foot | * 13.48 ft - (4109 mm) |
| Leech | * 24.51 ft - (7471 mm) |
| Percentage LP | * 115 % |
| Length Perpendicular | * 11.79 ft - (3594 mm) |
| Deck Angle | * 12 ° |
| Area | 165.2 ft² |
| Edit in Calculator |
Sonoma 30 - GENOA
| Luff | * 33.28 ft - (10144 mm) |
|---|---|
| Foot | * 16.47 ft - (5020 mm) |
| Leech | * 31.4 ft - (9571 mm) |
| Percentage LP | * 150 % |
| Length Perpendicular | * 15.38 ft - (4688 mm) |
| Deck Angle | * 4 ° |
| Area | 255.86 ft² |
| Edit in Calculator |
Sonoma 30 - SPINNAKER
| Stays | * 33.28 ft - (10144 mm) |
|---|---|
| MidGirth | * 18.45 ft - (5624 mm) |
| Foot | * 18.45 ft - (5624 mm) |
| Perc LP | * 180 % |
| Area | 521.91 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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