Grampian 30 vs Swan 36 Frers
How do the Grampian 30 and Swan 36 Frers compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
Grampian 30 
Swan 36 Frers | Grampian 30 | Swan 36 Frers | |
|---|---|---|
| Length overall | 29.8 ft9.07 m | 29.7 ft9.06 m |
| Waterline length | 25.5 ft7.77 m | 29.7 ft9.06 m |
| Beam | 9.5 ft2.90 m | 12.0 ft3.65 m |
| Draft | 4.7 ft1.42 m | 6.9 ft2.11 m |
| Displacement | 8,600 lb3,901 kg | 14,771 lb6,700 kg |
| Ballast | 3,870 lb1,755 kg | 5,600 lb2,540 kg |
| Sail area | 389 ft²36.1 m² | 624 ft²58.0 m² |
| SA / Displacement | 14.83 | 16.58 |
| Displacement / Length | 232 | 251 |
| Comfort ratio | 24.7 | 28.1 |
| Capsize screening | 1.85 | 1.95 |
| Hull speed (kn) | 6.8 | 7.3 |
Grampian 30 vs Swan 36 Frers: the short version
- The Grampian 30 and Swan 36 Frers are close in length (29.8 ft9.07 m vs 29.7 ft9.06 m ).
- The Swan 36 Frers is heavier, displacing about 72% more, which usually means a steadier but slower-to-accelerate hull.
- On sail area/displacement the Swan 36 Frers carries the more powerful rig (16.6 vs 14.8), favouring lighter-air performance.
- The Swan 36 Frers scores higher on the Brewer comfort ratio, suggesting an easier motion in a seaway.
- By the capsize screening formula the Grampian 30 rates better for offshore work (1.85 vs 1.95).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.