The detailed official specification is the Class Rules. The nominal specifications are show below.
| Overall Length | 4.57 meters | 15 feet 0 inches |
| Beam | 1.55 meters | 5 feet 1 inch |
| Minimum Hull Weight | 109 kg | 240 lbs |
| Full Rigged Weight (without people) | 136 kg | 299 lbs |
| Sail Area - Mainsail | 8.4 m2 | 90 sq ft |
| Sail Area - Jib | 3.3 m2 | 35 sq ft |
| Draft with Centerboard and Rudder Up | 0.2 m | 8 inches |
| Draft with Centerboard Down | 1.3 m | 4 feet 2 inches |
