Catalina 18 vs Coronado 15
How do the Catalina 18 and Coronado 15 compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
Catalina 18 
Coronado 15 | Catalina 18 | Coronado 15 | |
|---|---|---|
| Length overall | 18.0 ft5.49 m | 15.3 ft4.67 m |
| Waterline length | 16.3 ft4.98 m | —— |
| Beam | 7.6 ft2.31 m | 5.7 ft1.73 m |
| Draft | 2.3 ft0.71 m | 3.7 ft1.12 m |
| Displacement | 1,500 lb680 kg | 385 lb175 kg |
| Ballast | 425 lb193 kg | —— |
| Sail area | 151 ft²14.0 m² | 139 ft²12.9 m² |
| SA / Displacement | 18.44 | 42.02 |
| Displacement / Length | 154 | — |
| Comfort ratio | 9.3 | — |
| Capsize screening | 2.65 | 3.12 |
| Hull speed (kn) | 5.4 | — |
Catalina 18 vs Coronado 15: the short version
- The Catalina 18 is the larger boat at 18.0 ft5.49 m LOA versus 15.3 ft4.67 m for the Coronado 15.
- The Catalina 18 is heavier, displacing about 290% more, which usually means a steadier but slower-to-accelerate hull.
- On sail area/displacement the Coronado 15 carries the more powerful rig (42.0 vs 18.4), favouring lighter-air performance.
- By the capsize screening formula the Catalina 18 rates better for offshore work (2.65 vs 3.12).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.