Bristol Half Ton 28
Description
The Bristol Half Ton 28, commonly known simply as the Bristol 28, is a classic fiberglass sailboat designed by Halsey C. Chase Herreshoff (grandson of the legendary Nathanael Herreshoff) and built by Bristol Yachts in Rhode Island from 1972 to 1974. Only about 20 units were produced, making it a rare gem among Bristol's lineup. It was specifically engineered as a racer for the International Offshore Rule (IOR) Half Ton class, which targeted boats around 27-30 feet for offshore racing with a rating limit emphasizing performance over outright size. This model is essentially a sleeker, racing-oriented precursor to the more cruiser-focused Bristol 29.9, featuring less stern overhang for better speed and handling in competitive conditions.
Construction Details
| Designer | Herreshoff, Halsey C. |
|---|---|
| Builder | Bristol Yachts |
| Length | 28.000 ft |
The standard boat dimensions
| i | 37.50 ft |
|---|---|
| j | 11.50 ft |
| p | 31 ft |
| e | 10 ft |
| p2 | - |
| e2 | - |
| i2 | - |
| j2 | - |
| I | J | P | E | P2 | E2 | I2 | J2 |
|---|---|---|---|---|---|---|---|
| 37.50 ft | 11.50 ft | 31 ft | 10 ft | - | - | - | - |
Blueprints
Sails
| Sail Type | MAINSAIL |
|---|---|
| Luff | 31 ft - (9449 mm) |
| Foot | 10 ft - (3048 mm) |
| Leech | 31.65 ft - (9647 mm) |
| Tack Angle | * 86.58 ° |
| Diagonal | 32 ft - (9754 mm) |
| Head (inches) | 5 in - (127 mm) |
| Area | * 158.32 ft² |
| Sail Type | JIBSAIL |
|---|---|
| Luff | 32 ft - (9754 mm) |
| Foot | 15.75 ft - (4801 mm) |
| Leech | 35.5 ft - (10820 mm) |
| Percentage LP | * 136.96 % |
| Length Perpendicular | * 15.75 ft - (4801 mm) |
| Deck Angle | * -16.4 ° |
| Area | * 251.98 ft² |
| Sail Type | JIBSAIL |
|---|---|
| Luff | 26 ft - (7925 mm) |
| Foot | 14.33 ft - (4368 mm) |
| Leech | 24 ft - (7315 mm) |
| Percentage LP | * 113.65 % |
| Length Perpendicular | * 13.07 ft - (3984 mm) |
| Deck Angle | * 7.14 ° |
| Area | * 169.93 ft² |
| Sail Type | GENOA |
|---|---|
| Luff | 37.5 ft - (11430 mm) |
| Foot | 18 ft - (5486 mm) |
| Leech | 37 ft - (11278 mm) |
| Percentage LP | * 150.78 % |
| Length Perpendicular | * 17.34 ft - (5285 mm) |
| Deck Angle | * -1.53 ° |
| Area | * 325.19 ft² |
| Sail Type | SPINNAKER |
|---|---|
| Stays | * 37.26 ft - (11357 mm) |
| MidGirth | * 20.7 ft - (6309 mm) |
| Foot | * 20.7 ft - (6309 mm) |
| Perc LP | * 180 % |
| Area | * 656 ft² |
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.