Bay Hen 21 vs Impulse 21
How do the Bay Hen 21 and Impulse 21 compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
Bay Hen 21 | Bay Hen 21 | Impulse 21 | |
|---|---|---|
| Length overall | 21.0 ft6.40 m | 21.0 ft6.40 m |
| Waterline length | 18.3 ft5.56 m | 18.5 ft5.64 m |
| Beam | 6.3 ft1.91 m | 8.0 ft2.44 m |
| Draft | 3.5 ft1.07 m | 3.3 ft0.99 m |
| Displacement | 900 lb408 kg | 1,300 lb590 kg |
| Ballast | —— | 600 lb272 kg |
| Sail area | 175 ft²16.3 m² | 207 ft²19.2 m² |
| SA / Displacement | 30.04 | 27.81 |
| Displacement / Length | 66 | 92 |
| Comfort ratio | 6.3 | 6.5 |
| Capsize screening | 2.59 | 2.93 |
| Hull speed (kn) | 5.7 | 5.8 |
Bay Hen 21 vs Impulse 21: the short version
- The Bay Hen 21 and Impulse 21 are close in length (21.0 ft6.40 m vs 21.0 ft6.40 m ).
- The Impulse 21 is heavier, displacing about 44% more, which usually means a steadier but slower-to-accelerate hull.
- On sail area/displacement the Bay Hen 21 carries the more powerful rig (30.0 vs 27.8), favouring lighter-air performance.
- The Impulse 21 scores higher on the Brewer comfort ratio, suggesting an easier motion in a seaway.
- By the capsize screening formula the Bay Hen 21 rates better for offshore work (2.59 vs 2.93).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.