Alerion Express 19 vs Mariner 19
How do the Alerion Express 19 and Mariner 19 compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
Alerion Express 19 
Mariner 19 | Alerion Express 19 | Mariner 19 | |
|---|---|---|
| Length overall | 19.2 ft5.84 m | 19.2 ft5.84 m |
| Waterline length | 18.9 ft5.77 m | 17.8 ft5.41 m |
| Beam | 8.7 ft2.64 m | 7.0 ft2.13 m |
| Draft | 4.2 ft1.27 m | 3.3 ft1.01 m |
| Displacement | 1,750 lb794 kg | 1,430 lb649 kg |
| Ballast | 300 lb136 kg | —— |
| Sail area | 272 ft²25.3 m² | 184 ft²17.1 m² |
| SA / Displacement | 29.97 | 23.19 |
| Displacement / Length | 115 | 114 |
| Comfort ratio | 8.0 | 9.1 |
| Capsize screening | 2.88 | 2.49 |
| Hull speed (kn) | 5.8 | 5.6 |
Alerion Express 19 vs Mariner 19: the short version
- The Alerion Express 19 and Mariner 19 are close in length (19.2 ft5.84 m vs 19.2 ft5.84 m ).
- The Alerion Express 19 is heavier, displacing about 22% more, which usually means a steadier but slower-to-accelerate hull.
- On sail area/displacement the Alerion Express 19 carries the more powerful rig (30.0 vs 23.2), favouring lighter-air performance.
- The Mariner 19 scores higher on the Brewer comfort ratio, suggesting an easier motion in a seaway.
- By the capsize screening formula the Mariner 19 rates better for offshore work (2.49 vs 2.88).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.