Swan 115 vs Swan 53 Mk I
How do the Swan 115 and Swan 53 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 53 Mk I | |
|---|---|---|
| Length overall | 107.7 ft32.84 m | 42.5 ft12.94 m |
| Waterline length | 107.7 ft32.84 m | 42.5 ft12.94 m |
| Beam | 26.6 ft8.12 m | 15.5 ft4.73 m |
| Draft | 11.5 ft3.50 m | 10.2 ft3.10 m |
| Displacement | 203,928 lb92,500 kg | 44,092 lb20,000 kg |
| Ballast | 70,547 lb32,000 kg | 18,518 lb8,400 kg |
| Sail area | 7,025 ft²652.6 m² | 1,342 ft²124.7 m² |
| SA / Displacement | 32.44 | 17.20 |
| Displacement / Length | 73 | 257 |
| Comfort ratio | 37.0 | 41.7 |
| Capsize screening | 1.81 | 1.76 |
| Hull speed (kn) | 13.9 | 8.7 |
Swan 115 vs Swan 53 Mk I: the short version
- The Swan 115 is the larger boat at 107.7 ft32.84 m LOA versus 42.5 ft12.94 m for the Swan 53 Mk I.
- The Swan 115 is heavier, displacing about 363% 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 17.2), favouring lighter-air performance.
- The Swan 53 Mk I scores higher on the Brewer comfort ratio, suggesting an easier motion in a seaway.
- By the capsize screening formula the Swan 53 Mk I rates better for offshore work (1.76 vs 1.81).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.