O'Day 272 vs O'Day 30
How do the O'Day 272 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.
O'Day 272 
O'Day 30 | O'Day 272 | O'Day 30 | |
|---|---|---|
| Length overall | 26.9 ft8.21 m | 29.9 ft9.12 m |
| Waterline length | 22.9 ft6.99 m | 25.4 ft7.75 m |
| Beam | 9.0 ft2.74 m | 10.8 ft3.28 m |
| Draft | 2.9 ft0.89 m | 4.9 ft1.49 m |
| Displacement | 5,375 lb2,438 kg | 10,150 lb4,604 kg |
| Ballast | 1,930 lb875 kg | 4,000 lb1,814 kg |
| Sail area | 299 ft²27.8 m² | 441 ft²41.0 m² |
| SA / Displacement | 15.59 | 15.05 |
| Displacement / Length | 199 | 276 |
| Comfort ratio | 18.4 | 24.8 |
| Capsize screening | 2.06 | 1.99 |
| Hull speed (kn) | 6.4 | 6.8 |
O'Day 272 vs O'Day 30: the short version
- The O'Day 30 is the larger boat at 29.9 ft9.12 m LOA versus 26.9 ft8.21 m for the O'Day 272.
- The O'Day 30 is heavier, displacing about 89% more, which usually means a steadier but slower-to-accelerate hull.
- On sail area/displacement the O'Day 272 carries the more powerful rig (15.6 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 O'Day 30 rates better for offshore work (1.99 vs 2.06).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.