Aquarius 23 vs Rob Roy 23
How do the Aquarius 23 and Rob Roy 23 compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
Aquarius 23 
Rob Roy 23 | Aquarius 23 | Rob Roy 23 | |
|---|---|---|
| Length overall | 22.7 ft6.91 m | 22.7 ft6.91 m |
| Waterline length | 21.2 ft6.45 m | 21.0 ft6.40 m |
| Beam | 7.9 ft2.41 m | 6.9 ft2.11 m |
| Draft | 4.6 ft1.40 m | 4.7 ft1.42 m |
| Displacement | 2,280 lb1,034 kg | 2,800 lb1,270 kg |
| Ballast | 815 lb370 kg | 900 lb408 kg |
| Sail area | 218 ft²20.3 m² | 255 ft²23.7 m² |
| SA / Displacement | 20.14 | 20.54 |
| Displacement / Length | 107 | 135 |
| Comfort ratio | 10.3 | 15.3 |
| Capsize screening | 2.41 | 1.96 |
| Hull speed (kn) | 6.2 | 6.1 |
Aquarius 23 vs Rob Roy 23: the short version
- The Aquarius 23 and Rob Roy 23 are close in length (22.7 ft6.91 m vs 22.7 ft6.91 m ).
- The Rob Roy 23 is heavier, displacing about 23% more, which usually means a steadier but slower-to-accelerate hull.
- On sail area/displacement the Rob Roy 23 carries the more powerful rig (20.5 vs 20.1), favouring lighter-air performance.
- The Rob Roy 23 scores higher on the Brewer comfort ratio, suggesting an easier motion in a seaway.
- By the capsize screening formula the Rob Roy 23 rates better for offshore work (1.96 vs 2.41).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.