| Development | |
|---|---|
| Designer | Don Wennersten |
| Location | United States |
| Year | 1982 |
| No. built | 70 |
| Builder(s) | S2 Yachts |
| Role | Racer-Day sailer |
| Name | S2 5.5 |
| Boat | |
| Displacement | 600 lb (272 kg) |
| Draft | 4.00 ft (1.22 m) with centerboard down |
| Hull | |
| Type | monohull |
| Construction | fiberglass |
| LOA | 18.00 ft (5.49 m) |
| LWL | 16.25 ft (4.95 m) |
| Beam | 7.67 ft (2.34 m) |
| Hull appendages | |
| Keel/board type | centerboard |
| Rudder(s) | transom-mounted rudder |
| Rig | |
| Rig type | Bermuda rig |
| I foretriangle height | 19.50 ft (5.94 m) |
| J foretriangle base | 6.00 ft (1.83 m) |
| P mainsail luff | 23.50 ft (7.16 m) |
| E mainsail foot | 10.00 ft (3.05 m) |
| Sails | |
| Sailplan | fractional rigged sloop |
| Mainsail area | 117.50 sq ft (10.916 m2) |
| Jib/genoa area | 58.50 sq ft (5.435 m2) |
| Total sail area | 176.00 sq ft (16.351 m2) |
The S2 5.5, also called the Grand Slam 5.5, is an American sailing dinghy that was designed by Don Wennersten as a racer and day sailer and first built in 1982. The designation indicates the approximate length overall in meters.[1][2]
The design was the smallest boat S2 Yachts produced and its only dingy model.[3][4]
The design was built by S2 Yachts in Holland, Michigan, United States from 1982 until 1983, with 70 boats completed, but it is now out of production.[1][2][3][4]
The S2 5.5 is a recreational sailboat, built predominantly of fiberglass, with wood trim. It has a fractional sloop rig, a raked stem, a plumb transom, a transom-hung rudder controlled by a tiller and a retractable centerboard. It displaces 600 lb (272 kg) and has a small cuddy cabin for stowage.[1][2]
The boat has a draft of 4.00 ft (1.22 m) with the centerboard extended. With it retracted the boat can operate in shallow water, be beached or ground transported on a trailer.[1][2]
The design has a hull speed of 5.4 kn (10.0 km/h).[2]