G-Cat 5.7 vs West Wight Potter 19
How do the G-Cat 5.7 and West Wight Potter 19 compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
G-Cat 5.7 
West Wight Potter 19 | G-Cat 5.7 | West Wight Potter 19 | |
|---|---|---|
| Length overall | 18.7 ft5.69 m | 18.8 ft5.71 m |
| Waterline length | 17.5 ft5.33 m | 16.8 ft5.11 m |
| Beam | 8.0 ft2.44 m | 7.5 ft2.29 m |
| Draft | —— | 3.6 ft1.09 m |
| Displacement | 360 lb163 kg | 1,225 lb556 kg |
| Ballast | —— | 370 lb168 kg |
| Sail area | 235 ft²21.8 m² | 132 ft²12.3 m² |
| SA / Displacement | 74.30 | 18.45 |
| Displacement / Length | 30 | 116 |
| Comfort ratio | 2.0 | 7.4 |
| Capsize screening | 4.50 | 2.80 |
| Hull speed (kn) | 5.6 | 5.5 |
G-Cat 5.7 vs West Wight Potter 19: the short version
- The G-Cat 5.7 and West Wight Potter 19 are close in length (18.7 ft5.69 m vs 18.8 ft5.71 m ).
- The West Wight Potter 19 is heavier, displacing about 240% more, which usually means a steadier but slower-to-accelerate hull.
- On sail area/displacement the G-Cat 5.7 carries the more powerful rig (74.3 vs 18.4), favouring lighter-air performance.
- The West Wight Potter 19 scores higher on the Brewer comfort ratio, suggesting an easier motion in a seaway.
- By the capsize screening formula the West Wight Potter 19 rates better for offshore work (2.80 vs 4.50).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.