Dark Harbor 17 1/2 vs Mariehom IF
How do the Dark Harbor 17 1/2 and Mariehom IF compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
Dark Harbor 17 1/2 | Dark Harbor 17 1/2 | Mariehom IF | |
|---|---|---|
| Length overall | 25.8 ft7.87 m | 25.8 ft7.86 m |
| Waterline length | 17.5 ft5.33 m | 19.9 ft6.05 m |
| Beam | 6.3 ft1.92 m | 7.2 ft2.20 m |
| Draft | 4.3 ft1.30 m | 4.0 ft1.21 m |
| Displacement | 3,420 lb1,551 kg | 4,850 lb2,200 kg |
| Ballast | —— | —— |
| Sail area | 311 ft²28.9 m² | 280 ft²26.0 m² |
| SA / Displacement | 21.92 | 15.64 |
| Displacement / Length | 285 | 277 |
| Comfort ratio | 22.8 | 24.9 |
| Capsize screening | 1.67 | 1.71 |
| Hull speed (kn) | 5.6 | 6.0 |
| Average used price | — | €2,900 |
Dark Harbor 17 1/2 vs Mariehom IF: the short version
- The Dark Harbor 17 1/2 and Mariehom IF are close in length (25.8 ft7.87 m vs 25.8 ft7.86 m ).
- The Mariehom IF is heavier, displacing about 42% more, which usually means a steadier but slower-to-accelerate hull.
- On sail area/displacement the Dark Harbor 17 1/2 carries the more powerful rig (21.9 vs 15.6), favouring lighter-air performance.
- The Mariehom IF scores higher on the Brewer comfort ratio, suggesting an easier motion in a seaway.
- By the capsize screening formula the Dark Harbor 17 1/2 rates better for offshore work (1.67 vs 1.71).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.