Atlantic City catboat vs Tonic 23
How do the Atlantic City catboat and Tonic 23 compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
Atlantic City catboat 
Tonic 23 | Atlantic City catboat | Tonic 23 | |
|---|---|---|
| Length overall | 24.0 ft7.32 m | 24.0 ft7.32 m |
| Waterline length | 22.0 ft6.71 m | 20.3 ft6.19 m |
| Beam | 11.0 ft3.35 m | 8.1 ft2.47 m |
| Draft | 5.0 ft1.52 m | 4.5 ft1.37 m |
| Displacement | 8,000 lb3,629 kg | 2,932 lb1,330 kg |
| Ballast | 2,200 lb998 kg | 1,058 lb480 kg |
| Sail area | 452 ft²42.0 m² | 316 ft²29.4 m² |
| SA / Displacement | 18.08 | 24.68 |
| Displacement / Length | 335 | 156 |
| Comfort ratio | 22.4 | 13.0 |
| Capsize screening | 2.20 | 2.26 |
| Hull speed (kn) | 6.3 | 6.0 |
Atlantic City catboat vs Tonic 23: the short version
- The Atlantic City catboat and Tonic 23 are close in length (24.0 ft7.32 m vs 24.0 ft7.32 m ).
- The Atlantic City catboat is heavier, displacing about 173% more, which usually means a steadier but slower-to-accelerate hull.
- On sail area/displacement the Tonic 23 carries the more powerful rig (24.7 vs 18.1), favouring lighter-air performance.
- The Atlantic City catboat scores higher on the Brewer comfort ratio, suggesting an easier motion in a seaway.
- By the capsize screening formula the Atlantic City catboat rates better for offshore work (2.20 vs 2.26).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.