O'Day 28 vs Viking 28
How do the O'Day 28 and Viking 28 compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
O'Day 28 
Viking 28 | O'Day 28 | Viking 28 | |
|---|---|---|
| Length overall | 28.3 ft8.61 m | 28.2 ft8.59 m |
| Waterline length | 22.9 ft6.99 m | 22.0 ft6.71 m |
| Beam | 10.3 ft3.12 m | 8.4 ft2.55 m |
| Draft | 4.5 ft1.37 m | 4.5 ft1.37 m |
| Displacement | 7,300 lb3,311 kg | 4,775 lb2,166 kg |
| Ballast | 2,550 lb1,157 kg | 2,250 lb1,021 kg |
| Sail area | 370 ft²34.4 m² | 317 ft²29.5 m² |
| SA / Displacement | 15.73 | 17.89 |
| Displacement / Length | 271 | 200 |
| Comfort ratio | 20.7 | 18.3 |
| Capsize screening | 2.11 | 1.99 |
| Hull speed (kn) | 6.4 | 6.3 |
O'Day 28 vs Viking 28: the short version
- The O'Day 28 and Viking 28 are close in length (28.3 ft8.61 m vs 28.2 ft8.59 m ).
- The O'Day 28 is heavier, displacing about 53% more, which usually means a steadier but slower-to-accelerate hull.
- On sail area/displacement the Viking 28 carries the more powerful rig (17.9 vs 15.7), favouring lighter-air performance.
- The O'Day 28 scores higher on the Brewer comfort ratio, suggesting an easier motion in a seaway.
- By the capsize screening formula the Viking 28 rates better for offshore work (1.99 vs 2.11).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.