Nautor 43 vs Swan 46 Mk III
How do the Nautor 43 and Swan 46 Mk III compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
Nautor 43 
Swan 46 Mk III | Nautor 43 | Swan 46 Mk III | |
|---|---|---|
| Length overall | 31.5 ft9.60 m | 46.6 ft14.20 m |
| Waterline length | 31.5 ft9.60 m | 39.6 ft12.06 m |
| Beam | 13.8 ft4.22 m | 14.0 ft4.26 m |
| Draft | 5.9 ft1.80 m | 7.2 ft2.20 m |
| Displacement | 33,069 lb15,000 kg | 32,408 lb14,700 kg |
| Ballast | 9,040 lb4,100 kg | 12,125 lb5,500 kg |
| Sail area | 832 ft²77.3 m² | 1,179 ft²109.5 m² |
| SA / Displacement | 12.92 | 18.56 |
| Displacement / Length | 472 | 234 |
| Comfort ratio | 49.0 | 35.8 |
| Capsize screening | 1.73 | 1.75 |
| Hull speed (kn) | 7.5 | 8.4 |
Nautor 43 vs Swan 46 Mk III: the short version
- The Swan 46 Mk III is the larger boat at 46.6 ft14.20 m LOA versus 31.5 ft9.60 m for the Nautor 43.
- On sail area/displacement the Swan 46 Mk III carries the more powerful rig (18.6 vs 12.9), favouring lighter-air performance.
- The Nautor 43 scores higher on the Brewer comfort ratio, suggesting an easier motion in a seaway.
- By the capsize screening formula the Nautor 43 rates better for offshore work (1.73 vs 1.75).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.