Diamond Head vs OK Dinghy
How do the Diamond Head and OK Dinghy compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
Diamond Head 
OK Dinghy | Diamond Head | OK Dinghy | |
|---|---|---|
| Length overall | 12.8 ft3.91 m | 13.1 ft4.00 m |
| Waterline length | —— | —— |
| Beam | 1.9 ft0.59 m | 4.7 ft1.42 m |
| Draft | —— | 3.0 ft0.91 m |
| Displacement | 22 lb10 kg | 187 lb85 kg |
| Ballast | —— | —— |
| Sail area | —— | —— |
| SA / Displacement | — | — |
| Displacement / Length | — | — |
| Comfort ratio | — | — |
| Capsize screening | 2.77 | 3.26 |
| Hull speed (kn) | — | — |
Diamond Head vs OK Dinghy: the short version
- The Diamond Head and OK Dinghy are close in length (12.8 ft3.91 m vs 13.1 ft4.00 m ).
- The OK Dinghy is heavier, displacing about 750% more, which usually means a steadier but slower-to-accelerate hull.
- By the capsize screening formula the Diamond Head rates better for offshore work (2.77 vs 3.26).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.