Whitebread 30 (ULDB)
Description
The Whitebread 30 (ULDB) is an American ultralight displacement boat (ULDB) racing sloop designed by Lockley Newport. It was developed as a lightweight, high-performance 30-footer optimized for speed and planing potential in the ULDB genre popularized in California in the late 1970s/early 1980s (similar in spirit to boats like the Olson 30). No major commercial series production or specific builder is widely documented beyond the design attribution, suggesting it was a custom or limited-run one-off or small-batch project rather than a mass-produced model; exact quantity built is unknown but appears very low given its rarity in listings and databases today. Key features include an extremely light displacement for its length, a tall fractional or near-fractional rig with large mainsail for downwind and reaching performance, fin keel configuration, and a minimalist racing-oriented layout prioritizing speed over cruising comfort—suited to buoy racing, point-to-point events, or fast coastal daysailing in moderate to strong conditions rather than heavy bluewater passage making.
Construction Details
| Designer | In House Design |
|---|---|
| Builder | Lockley Newport Boats (USA) |
| Length | 30.000 ft |
| LOA | 30.000 ft |
| Year Built | 1979 |
The standard boat dimensions
| i | 34.12 ft |
|---|---|
| j | 10.50 ft |
| p | 42.32 ft |
| e | 14.11 ft |
| p2 | - |
| e2 | - |
| i2 | - |
| j2 | - |
| I | J | P | E | P2 | E2 | I2 | J2 |
|---|---|---|---|---|---|---|---|
| 34.12 ft | 10.50 ft | 42.32 ft | 14.11 ft | - | - | - | - |
Sails
Whitebread 30 (ULDB) - MAINSAIL
| Luff | * 42.32 ft - (12899 mm) |
|---|---|
| Foot | * 14.11 ft - (4301 mm) |
| Leech | * 43.87 ft - (13372 mm) |
| Tack Angle | * 88 ° |
| Diagonal | * 44.14 ft - (13454 mm) |
| Head (inches) | * 6 in - (152 mm) |
| Area | * 307.65 ft² |
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Whitebread 30 (ULDB) - JIBSAIL
| Luff | * 28.56 ft - (8705 mm) |
|---|---|
| Foot | * 13.83 ft - (4215 mm) |
| Leech | * 24.95 ft - (7605 mm) |
| Percentage LP | * 115.05 % |
| Length Perpendicular | * 12.08 ft - (3682 mm) |
| Deck Angle | * 12.02 ° |
| Area | * 172.53 ft² |
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Whitebread 30 (ULDB) - GENOA
| Luff | * 33.91 ft - (10336 mm) |
|---|---|
| Foot | * 16.88 ft - (5145 mm) |
| Leech | * 31.98 ft - (9748 mm) |
| Percentage LP | * 150 % |
| Length Perpendicular | * 15.75 ft - (4801 mm) |
| Deck Angle | * 3.99 ° |
| Area | * 267.01 ft² |
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Whitebread 30 (ULDB) - SPINNAKER
| Stays | * 33.91 ft - (10336 mm) |
|---|---|
| MidGirth | * 18.9 ft - (5761 mm) |
| Foot | * 18.9 ft - (5761 mm) |
| Perc LP | * 180 % |
| Area | * 545 ft² |
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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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