The Portsmouth Yardstick’ (PY) or Portsmouth handicap scheme is a term used for a number of related systems of empirical handicapping used primarily in small sailboat racing. The handicap is applied to the time taken to sail any course, and the handicaps can be used with widely differing types sailboats.
This is the MKSC Portsmouth Number List for 2017, which is based on the 2017 RYA List.
The PNs for “missing” classes which are not on the RYA list are indicated with “*”, they may appear in the RYA “Historic PN List”. *** = Portsmouth Number changed from last year
| Dinghy Class | PY Number |
|---|---|
| * 405 | 1089 |
| 420 | *** 1110 |
| Albacore | *** 1041 |
| Blaze | *** 1023 |
| * Bosun | 1198 |
| British Moth | *** 1155 |
| Buzz | *** 1023 |
| * Byte | 1190 |
| Byte C2 | *** 1147 |
| Cadet | 1428 |
| Comet | *** 1204 |
| * Comet Duo | 1178 |
| Comet Trio | *** 1094 |
| Devoti D-Zero | *** 1029 |
| Enterprise | 1113 |
| Europe | 1145 |
| Finn | *** 1045 |
| Firefly | *** 1165 |
| GP 14 | *** 1133 |
| Graduate | *** 1129 |
| * Gull (crewed) | 1363 |
| * Heron | 1345 |
| Kestrel | *** 1035 |
| Lark | 1070 |
| Laser | *** 1097 |
| Laser 2000 (a.k.a. “2000”) | 1107 |
| Laser 3000 | *** 1085 |
| Laser 4.7 | *** 1200 |
| Laser EPS | *** 1030 |
| Laser II | 1065 |
| * Laser Pico (single person, no jib) | 1330 |
| Laser Radial | *** 1139 |
| Laser Stratos | *** 1095 |
| Laser Vago XD | 1074 |
| * Leader | 1115 |
| Lightning 368 | *** 1170 |
| Megabyte | 1060 |
| Miracle | 1210 |
| Mirror (crew + spinnaker) | 1383 |
| * Mirror (single person + spin) | 1365 |
| Mirror (single person, no spin) | 1369 |
| National 12 | 1064 |
| OK | *** 1104 |
| Optimist | 1665 |
| * Otter | 1275 |
| * Pacer | 1193 |
| * Redwing | 1094 |
| Rooster 8.1 | *** 1045 |
| RS 100 (8.4) | *** 1008 |
| RS 200 | 1047 |
| RS Aero 5 | *** 1120 |
| RS Aero 7 | *** 1071 |
| RS Aero 9 | *** 1024 |
| RS Feva XL | *** 1240 |
| RS Tera Pro | *** 1364 |
| RS Tera Sport | *** 1432 |
| RS Vareo | *** 1085 |
| RS Vision | *** 1128 |
| Scorpion | 1040 |
| * Seafly | 1087 |
| * Signet | 1265 |
| Snipe | *** 1095 |
| Solo | *** 1143 |
| Solution | *** 1087 |
| Splash | *** 1220 |
| * Sport 14 | 1055 |
| Streaker | *** 1132 |
| Supernova | 1075 |
| Tasar | *** 1015 |
| * Topaz Duo | 1190 |
| * Topaz Uno | 1251 |
| * Topaz Omega | 1075 |
| * Topper Xenon | 1079 |
| Topper | *** 1347 |
| Topper 4.2 | 1400 |
| Wanderer | *** 1180 |
| Wayfarer | *** 1102 |
| * YW Dayboat | 1200 |
For crewed boats sailing single-handed where a specific single-handed PN is NOT listed above a PN shall be calculated as follows:-
single-handed PN = crewed PN – (crewed PN / 63)