Dolphin 24 vs O'Day 30
How do the Dolphin 24 and O'Day 30 compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
Dolphin 24 | Dolphin 24 | O'Day 30 | |
|---|---|---|
| Length overall | 24.2 ft7.36 m | 29.9 ft9.12 m |
| Waterline length | 19.0 ft5.79 m | 25.4 ft7.75 m |
| Beam | 7.7 ft2.34 m | 10.8 ft3.28 m |
| Draft | 5.2 ft1.58 m | 4.9 ft1.49 m |
| Displacement | 4,250 lb1,928 kg | 10,150 lb4,604 kg |
| Ballast | 1,650 lb748 kg | 4,000 lb1,814 kg |
| Sail area | 295 ft²27.4 m² | 441 ft²41.0 m² |
| SA / Displacement | 17.99 | 15.05 |
| Displacement / Length | 277 | 276 |
| Comfort ratio | 21.2 | 24.8 |
| Capsize screening | 1.89 | 1.99 |
| Hull speed (kn) | 5.8 | 6.8 |
Dolphin 24 vs O'Day 30: the short version
- The O'Day 30 is the larger boat at 29.9 ft9.12 m LOA versus 24.2 ft7.36 m for the Dolphin 24.
- The O'Day 30 is heavier, displacing about 139% more, which usually means a steadier but slower-to-accelerate hull.
- On sail area/displacement the Dolphin 24 carries the more powerful rig (18.0 vs 15.1), favouring lighter-air performance.
- The O'Day 30 scores higher on the Brewer comfort ratio, suggesting an easier motion in a seaway.
- By the capsize screening formula the Dolphin 24 rates better for offshore work (1.89 vs 1.99).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.