O
| Oceanis 311 Clipper | 1,16 |
| OE 29 | 1,06 |
| OE 32 | 1,07 |
| OE 33 19/20 | 1,12 |
| OE 33 7/8 | 1,12 |
| OE 36 | 1,13 |
| Ohlson 22 | 0,99 |
| Ohlson 28 | 1,02 |
| Ohlson 29 -1975 | 1,04 |
| Ohlson 29 1976- | 1,06 |
| Ohlson 8:8 | 1,06 |
| Oksö 32 | 1,05 |
| Olsen 31 | 1,10 |
| Omega 28 | 1,07 |
| Omega 30 | 1,14 |
| Omega 34 | 1,17 |
| Omega 36 | 1,22 |
| Omega 42 | 1,25 |
Read more about this topic: LYS (sailing)