OK Dinghy vs RS Aero
How do the OK Dinghy and RS Aero compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
OK Dinghy 
RS Aero | OK Dinghy | RS Aero | |
|---|---|---|
| Length overall | 13.1 ft4.00 m | 13.2 ft4.01 m |
| Waterline length | —— | 13.2 ft4.01 m |
| Beam | 4.7 ft1.42 m | 4.6 ft1.40 m |
| Draft | 3.0 ft0.91 m | 1.0 ft0.30 m |
| Displacement | 187 lb85 kg | 66 lb30 kg |
| Ballast | —— | —— |
| Sail area | —— | 5 ft²0.5 m² |
| SA / Displacement | — | 4.90 |
| Displacement / Length | — | 13 |
| Comfort ratio | — | 1.0 |
| Capsize screening | 3.26 | 4.54 |
| Hull speed (kn) | — | 4.9 |
OK Dinghy vs RS Aero: the short version
- The OK Dinghy and RS Aero are close in length (13.1 ft4.00 m vs 13.2 ft4.01 m ).
- The OK Dinghy is heavier, displacing about 183% more, which usually means a steadier but slower-to-accelerate hull.
- By the capsize screening formula the OK Dinghy rates better for offshore work (3.26 vs 4.54).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.