Swan 115 vs Swan 46 Mk I
How do the Swan 115 and Swan 46 Mk I compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
Swan 115 | Swan 115 | Swan 46 Mk I | |
|---|---|---|
| Length overall | 107.7 ft32.84 m | 37.9 ft11.55 m |
| Waterline length | 107.7 ft32.84 m | 37.9 ft11.55 m |
| Beam | 26.6 ft8.12 m | 14.5 ft4.41 m |
| Draft | 11.5 ft3.50 m | 8.2 ft2.50 m |
| Displacement | 203,928 lb92,500 kg | 31,306 lb14,200 kg |
| Ballast | 70,547 lb32,000 kg | 11,400 lb5,171 kg |
| Sail area | 7,025 ft²652.6 m² | 978 ft²90.9 m² |
| SA / Displacement | 32.44 | 15.75 |
| Displacement / Length | 73 | 257 |
| Comfort ratio | 37.0 | 36.4 |
| Capsize screening | 1.81 | 1.84 |
| Hull speed (kn) | 13.9 | 8.2 |
Swan 115 vs Swan 46 Mk I: the short version
- The Swan 115 is the larger boat at 107.7 ft32.84 m LOA versus 37.9 ft11.55 m for the Swan 46 Mk I.
- The Swan 115 is heavier, displacing about 551% more, which usually means a steadier but slower-to-accelerate hull.
- On sail area/displacement the Swan 115 carries the more powerful rig (32.4 vs 15.8), favouring lighter-air performance.
- The Swan 115 scores higher on the Brewer comfort ratio, suggesting an easier motion in a seaway.
- By the capsize screening formula the Swan 115 rates better for offshore work (1.81 vs 1.84).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.