Roberts Spray 28
Description
The Bruce Roberts Spray 28, inspired by Joshua Slocum's legendary 1900 circumnavigator and designed in the 1970s by Australian naval architect Bruce Roberts for budget-conscious owner-builders, is a rugged pocket cruiser with over 500 examples crafted worldwide in multi-chine steel, aluminum, or wood/epoxy, prized for its seaworthy simplicity and versatility in coastal cruising or solo offshore ventures. Measuring 28 feet LOD with a 22-foot-11-inch LWL, 10-foot-6-inch beam, 3-foot-6-inch shoal draft on a long keel for stability and gunkholing, and a displacement of 13,600 pounds including 4,000 pounds of ballast, this cutter-rigged sloop (adaptable to gaff, junk, or schooner configurations) provides a sail area of approximately 450 square feet across mainsail and genoa for steady 5-7 knot performance in 10-30 knot winds with forgiving handling and low weather helm, backed by an 18- to 25-horsepower diesel auxiliary like the Yanmar 2GM for 5-knot motoring. Its timeless lines boast a clipper bow, counter stern, and moderate sheer on a heavy-duty hull with optional pilothouse for all-weather protection, complemented by a snug interior featuring 6-foot-1-inch headroom, four berths (V-forward, saloon settees, quarter aft), compact L-galley, dinette, enclosed head with shower, and practical tankage of 50 gallons fuel and 80 gallons water for weeklong autonomy. Endorsed for real-world exploits like singlehanded Atlantic crossings and Southern Ocean trials—as in steel-hulled UK builds like Spray of Falmouth—the Spray 28 embodies economical bluewater ethos in a trailerable (under 9 tons) form, remaining a gateway icon for dreamers chasing Slocum's spirit on a shoestring.
Construction Details
| Designer | Bruce Roberts-Goodson |
|---|---|
| Length | 28.000 ft |
| LOA | 28.000 ft |
| LWL | 22.920 ft |
| Beam | 10.500 ft |
| Displacement | 13600 lb |
| Ballast | 4000 lb |
| Max Draft | 3.500 ft |
The standard boat dimensions
| i | 33 ft |
|---|---|
| j | 15.67 ft |
| p | 29.42 ft |
| e | 11.50 ft |
| p2 | - |
| e2 | - |
| i2 | 25.92 ft |
| j2 | 12.17 ft |
| I | J | P | E | P2 | E2 | I2 | J2 |
|---|---|---|---|---|---|---|---|
| 33 ft | 15.67 ft | 29.42 ft | 11.50 ft | - | - | 25.92 ft | 12.17 ft |
Documents
Sails
Roberts Spray 28 - MAINSAIL
| Luff | * 29.42 ft - (8967 mm) |
|---|---|
| Foot | * 11.5 ft - (3505 mm) |
| Leech | * 30.97 ft - (9440 mm) |
| Tack Angle | * 88 ° |
| Diagonal | * 31.21 ft - (9513 mm) |
| Head (inches) | * 5.25 in - (133 mm) |
| Area | * 174.75 ft² |
| Edit in Calculator |
Roberts Spray 28 - ASYMMETRICAL
| Luff | 35 ft - (10668 mm) |
|---|---|
| Foot | 25.75 ft - (7849 mm) |
| Leech | 32.5 ft - (9906 mm) |
| Perc LP | * 165 % |
| Area | * 676 ft² |
| Edit in Calculator |
Roberts Spray 28 - YANKEE
| Luff | 34.33 ft - (10464 mm) |
|---|---|
| Foot | 18.22 ft - (5553 mm) |
| Leech | 26.67 ft - (8129 mm) |
| Percentage LP | * 89.47 % |
| Length Perpendicular | * 14.02 ft - (4273 mm) |
| Deck Angle | * 14.31 ° |
| Area | * 240.6 ft² |
| Edit in Calculator |
Roberts Spray 28 - STAYSAIL
| Luff | 26 ft - (7925 mm) |
|---|---|
| Foot | 11.17 ft - (3405 mm) |
| Leech | 22.75 ft - (6934 mm) |
| Length Perpendicular | * 9.75 ft - (2972 mm) |
| Area | * 126.78 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.