Roberts Spray 33 Ketch
Description
The Bruce Roberts Spray 33 Ketch, a versatile heavy-displacement cruiser from the iconic Spray series designed by Bruce Roberts-Goodson in the 1990s, is renowned for its seaworthy long-keel hull, exceptional load-carrying capacity, and stability in heavy weather, enabling long-distance voyages like Atlantic crossings while prioritizing simplicity for DIY builders worldwide. Measuring 32 feet 11 inches LOA with a 26-foot-7-inch waterline, 12-foot beam, 4-foot draft, and 22,000-pound displacement (bolstered by 7,500 pounds of ballast for a robust 34% ratio), it employs a balanced ketch rig—adaptable from the standard Bermudan sloop with options for gaff cutter or junk setups—delivering efficient light-air performance under a 20–33 hp diesel auxiliary, with construction choices in fiberglass, steel, aluminum, or wood-epoxy keeping total build costs around $60,000–$120,000. The spacious interior supports 4–6 berths in customizable layouts featuring a U-shaped galley, nav station, and 6 feet of headroom, ideal for couples or small families embracing deliberate, self-steering coastal or offshore adventures.
Construction Details
| Designer | Bruce Roberts-Goodson |
|---|---|
| Length | 33.000 ft |
| LOA | 36.583 ft |
| LWL | 30.000 ft |
| Beam | 12.000 ft |
| Max Draft | 4.000 ft |
The standard boat dimensions
| i | 45.83 ft |
|---|---|
| j | 14 ft |
| p | 36.25 ft |
| e | 12 ft |
| p2 | 26.50 ft |
| e2 | 8.75 ft |
| i2 | - |
| j2 | - |
| I | J | P | E | P2 | E2 | I2 | J2 |
|---|---|---|---|---|---|---|---|
| 45.83 ft | 14 ft | 36.25 ft | 12 ft | 26.50 ft | 8.75 ft | - | - |
Documents
Sails
Roberts Spray 33 Ketch - MAINSAIL
| Luff | * 36.25 ft - (11049 mm) |
|---|---|
| Foot | * 12 ft - (3658 mm) |
| Leech | * 37.65 ft - (11476 mm) |
| Tack Angle | * 88.03 ° |
| Diagonal | * 37.79 ft - (11518 mm) |
| Head (inches) | * 5.25 in - (133 mm) |
| Area | 217.26 ft² |
| Edit in Calculator | |
Roberts Spray 33 Ketch - GENOA
| Percentage LP | * 150 % |
|---|---|
| Length Perpendicular | * 21 ft - (6401 mm) |
| Edit in Calculator | |
Roberts Spray 33 Ketch - MIZZEN
| Luff | * 26.5 ft - (8077 mm) |
|---|---|
| Foot | * 8.75 ft - (2667 mm) |
| Leech-AftHdBd | * 27.51 ft - (8385 mm) |
| Tack Ang | * 87.96 ° |
| Diag (clew/head) | * 27.61 ft - (8416 mm) |
| Head (inches) | * 4 in - (102 mm) |
| Area (no Roach) | 115.81 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.